help me please i need to sleep

Help Me Please I Need To Sleep

Answers

Answer 1

Cloud is a gas.

ice is a solid.

snow is a solid.

steam is a gas.

rain is a liquid.


Related Questions

Mass is usually measured in grams and

Answers

It’s grams and kilograms
I hope this helps you :)

An atomic number stands for the number of _____. neutrons in the nucleus of an atom protons in the nucleus of an atom valence electrons in an atom protons plus neutrons in the nucleus of an atom

Answers

Answer:

atoms or electrons

Explanation:

but l guess electrons is the best answer

A 20 kg curling stone is sliding is sliding in a positive direction at 4 m/s. A second curling stone is sliding at the same speed but in the opposite direction. What is the kinetic energy of the two stones?

Answers

Answer:

The kinetic energy of the two curling stones is 320 J

Explanation:

Given;

mass of the first curling stone, m₁ = 20 kg

velocity of the first curling stone, v₁ = 4 m/s

velocity of the second curling stone, v₂ = - 4m/s

assuming the second curling stone to have equal mass with the first stone = 20 kg

The kinetic energy of the first curling stone is given by;

K.E₁ = ¹/₂m₁v₁²

K.E₁ = ¹/₂(20)(4)²

K.E₁ = 160 J

The kinetic energy of the second stone is given by;

K.E₂ = ¹/₂m₂v₂²

K.E₂ = ¹/₂ (20) (-4)²

K.E₂ = 160 J

Thus, the kinetic energy of the two curling stones is given by;

K.E = K.E₁ + K.E₂

K.E = 160 J + 160 J

K.E = 320 J

Therefore, the kinetic energy of the two curling stones is 320 J

you have a lead ball with a mass of 420 g. the density of lead is 10.5 g/cm³. what is the volume of the ball

Answers

Answer:

The answer is

40.0 mL

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

[tex]volume = \frac{mass}{density} [/tex]

From the question

mass = 420 g

density = 10.5 g/cm³

The volume is

[tex]volume = \frac{420}{10.5} \\ [/tex]

We have the final answer as

40.0 mL

Hope this helps you

URGENT : how do the electrostatic forces between electrons influence their orbital spin?

Answers


Oppositely charged particles attract each other, while like particles repel one another. Electrons are kept in the orbit around the nucleus by the electromagnetic force, because the nucleus in the center of the atom is positively charged and attracts the negatively charged electrons.

hope this helps

Approximately how tall is Baker Hill? Don't forget your unit

Answers

Answer:

About 51m Baker Hill by 4

Hydrogen atoms and helium atoms are not the same.
True
False

Answers

Answer: The answer is False (No). All helium atoms have 2 protons in their nucleuses (nuclei). If an atom has only 1 proton it its nucleus, then it is a hydrogen atom. (it behaves like other hydrogen atoms, not like a helium atom.)

Answer:

FALSE

Explanation:

The answer is False (No). All helium atoms have 2 protons in their nucleuses (nuclei). If an atom has only 1 proton it its nucleus, then it is a hydrogen atom. (it behaves like other hydrogen atoms, not like a helium atom.)

How do scientists determine the number of neutrons in an isotope of an atom? O They find the number of protons. 0 They add the number of electrons and protons. They divide the atomic mass by two. They subtract the atomic number from the atomic mass. ​

Answers

Answer:

The three naturally-occurring isotopes of hydrogen. The fact that each isotope has one proton makes them all variants of hydrogen: the identity of the isotope is given by the number of protons and neutrons. From left to right, the isotopes are protium (1H) with zero neutrons, deuterium (2H) with one neutron, and tritium (3H) with two neutrons.

The term isotope is formed from the Greek roots isos (ἴσος "equal") and topos (τόπος "place"), meaning "the same place"; thus, the meaning behind the name is that different isotopes of a single element occupy the same position on the periodic table.[2] It was coined by a Scottish doctor and writer Margaret Todd in 1913 in a suggestion to chemist Frederick Soddy.

The number of protons within the atom's nucleus is called atomic number and is equal to the number of electrons in the neutral (non-ionized) atom. Each atomic number identifies a specific element, but not the isotope; an atom of a given element may have a wide range in its number of neutrons. The number of nucleons (both protons and neutrons) in the nucleus is the atom's mass number, and each isotope of a given element has a different mass number.

For example, carbon-12, carbon-13, and carbon-14 are three isotopes of the element carbon with mass numbers 12, 13, and 14, respectively. The atomic number of carbon is 6, which means that every carbon atom has 6 protons, so that the neutron numbers of these isotopes are 6, 7, and 8 respectively.

Which of the following properties of an unknown substance would allow it to be classified as a pure substance ?
A- can be dissolved into a solution
B- has a definite composition throughout
C- combines easily with other substances
D- is made of a single element or compound

Answers

D because that’s the only one that makes sense

Pure substances typically only include one type of atom or molecule and are homogeneous in nature. The majority of these chemicals have a consistent or homogeneous makeup. Thus, option C is correct.

What is pure substance?

Elements are pure compounds that cannot be chemically broken down into less complex ones. Iron, gold, sulfur, oxygen, and oxygen are some well-known elements.

Because it cannot be converted into a more basic substance, an element is an example of a pure substance. Examples of pure substances include water, neon, and sodium chloride (NaCl) (table salt).

One element or a few related compounds make up pure substances. A kind of matter with a predictable chemical composition and physical properties is referred to as a chemical substance.

Homogeneous mixes are made up of two or more components or compounds that cannot be seen separately from one another.

Therefore, a single element or compound show properties of pure substance.

Learn more about pure substance here:

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Chelsea went ice skating. The ice, her skates, the Zamboni, and the rink building were all examples of solids she encountered. She developed a model of the particles in the ice. Which of statements about the particles present in her model of solid are true?????? Choose the statements that apply.

A. they vibrate in place
B. they slide past each other
C. they are packed very closely together
D.they cause the solid to have a definite volume and definite shape



I think it is d c and a I may be wrong☺️​

Answers

Answer:

Answers are C, D

Explanation:

Solid particles always stick together no matter what happens unless it is changing into a liquid. If you are talking about vibration for solid particles that only applies to thermal vibratio so not A. They do not slide past each other because they are packed very tightly together. They have a definite shape and volume because they stay together unless facing heat. Hopefully this helps you :)

pls mark brainlest ;)

The statements about the particles present in her model that are true;

C and D

They are packed very closely together ( C ) They cause the solid to have a definite volume and definite shape ( D )

Particles of solids are closely packed and this feature distinguishes a solid from other forms of matter ( liquid and gas ). Solids have a definite volume and shape due to their closely packed particles.

Vibration in solids occur when solids are under thermal pressure and from her skating activity, there was no form of thermal pressure therefore solids vibrating in place would not be included in her model.

Hence we can conclude that The statements about the particles present in her model that are true; they are packed very closely together and  They cause the solid to have a definite volume and definite shape

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What's the largest planet on Earth?

Answers

Answer:

Asia

Explanation:

Answer:

Asia.

Explanation:


To calculate the charge of an atom you must

Answers

Answer:

The charge of an element is equal to the number of protons minus the number of electrons. The number of protons is equal to the atomic number of the element given in the periodic table. The number of electrons is equal to the atomic number minus the charge of the atom.

Explanation:

Igneous rock can be changed into which type of rock through the application of heat and pressure?

A. metamorphic rock

B. foliated igneous rock

C. clastic sedimentary rock

D.non-foliated igneous rock

(Pls help me)

Answers

Answer:

A) metamorphic rock

Explanation:

Granite is an igneous rock that forms when magma cools slowly underground. When granite is exposed to heat and pressure it changes into a metamorphic rock called gneiss

Which one would it be?

Answers

Answer:

it would be C! 0.0520 Km

The most common isotope of chromium is 52Cr. How many neutrons does an atom of 52Cr have?
a. 24
b. 28
c. 52
d. 80​

Answers

D or c I’m not sure maybe c sorry if it’s weonggg

40 ponitsss!! How many orbitals are in each of the following?
_______ 3p sublevel _______ 5d sublevel
_______ 2s sublevel _______ 3rd principal energy level
_______ 4f sublevel _______ 5th principal energy level

Answers

The first principal energy level has one sublevel, 1s
​The second energy level has 2 sublevels 2s, and 2p
​The third energy level has 3 sublevels, 3s, 3p, and 3d
​The fourth energy level has 4 sublevels, 4s, 4p, 4d, and 4f
​After that, the fifth, sixth, and seventh energy levels also have four sublevels ​each.
Does this answer your question?

An orbital is a region in space where there is a high probability of finding an electron.

In an atom there are orbitals. Orbitals are mathematical probability functions that describe regions in space where an electron could be found according to the wave mechanical model of the atom.

In the 3p sublevel, there are three orbitals. In the 2s sublevel, there is only one orbital. In the 4f sublevel, there are seven orbitals. In the 5d sublevel, there are five orbitals. In the third principal level, there are three nine orbitals in the fifth energy level, there are 25 orbitals. Note that in principal level, there are n^2 orbitals where n is the principal energy level.

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The Arizona poppy has adapted to living in areas that receive less rain, but there are still periods of time that a drought occurs. What part(s) of photosynthesis would the plant not be able to perform if there were no rain? What would be the long-term effects on the plant if the drought continues? Explain your answer.

Answers

Answer:

When plants lose more water than they can take up from the soil, they become water stressed. ... Such drought conditions certainly inhibit the growth of plants. If it goes long enough without water it will die because the plant uses water for a lot of different jobs needed to keep the plant alive, so the long-term effect is that the plant will die if the drought continues.

Explanation:

The Arizona poppy is the summer herb of deserts of southwestern US and has pinnately compound leaves and large snowy flowers. This poppy appears in rainy seasons.  

Due to the drought like conditions and fast-changing climate the poppy plant has learnt to adapt to the harsh climate of Arizona and is able to carry out the process of photosynthesis.  In the case of long-term drought conditions, the process of photosynthesis slows down as plant will absorb more light. This leads to stunted growth and possible death of the plant.

Learn more about the  Arizona poppy that has adapted to living in areas that receive less rain.

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What is the name of the binary molecule H2O2

Answers

Explanation:

H2O2: hydrogen peroxide.

hope it will help u ✌️

how many balance electrons does sodium have

Answers

Answer:

1

Explanation:

Answer:

it has one valence electron

Which pair of elements in the diagram is most likely to form a covalent bond?

Answers

Answer:

This question is incomplete

Explanation:

This question is incomplete. A covalent bond is a bond that involves the sharing of valence electrons (shared pair) by two atoms of the same/different elements/compounds. The electrons (valence) that are involved in covalent bonding are not the ones in pairs (lone pairs) on the outermost shell of the atom. For example, the single electron on a hydrogen atom is shared with another hydrogen to form hydrogen gas (H₂).

Another example is when the two individual/unpaired electrons on the outermost shell of an oxygen atom binds with two other unpaired electrons on the outermost shell of another oxygen atom.

Another example is when two different electrons from two hydrogen atom binds singly with the two unpaired electrons on the outermost shell of an oxygen atom to form water.

The diagram in the attachment provides illustration on the examples given.

Rank the nonmetals in each set from most reactive (1) to least reactive (3). bromine chlorine iodine

Answers

Answer:

1. Chlorine 2. Bromine 3. Iodine

Explanation:

Answer:

Bromine: 2 Chlorine: 1 Iodine: 3

Explanation:

Flammable materials, like alcohol, should never be dispensed or used near Group of answer choices an open door. a sink. another student. an open flame.

Answers

Answer:

An open flame. Hope this helped! :)

Which structure represents the cytosol within the cell

Answers

Answer:

In the eukaryotic cell, the cytosol is surrounded by the cell membrane and is part of the cytoplasm, which also comprises the mitochondria, plastids, and other organelles (but not their internal fluids and structures); the cell nucleus is separate. The cytosol is thus a liquid matrix around the organelles.

Answer:

C

Explanation:

answer on khan

a glass of.water contains 500g of liquid and 500 ml of liquid what is the density

Answers

Answer:

Explanation:

density=mass/volume

density=500/500

=1g/ml

CONCLUS Your conclusion will include a summary of the lab results and an interpretalion of the results. Please answer al questions in complele sentences using your own words Using two to three sentences, summarize what you investigated and observed in this lab What I observed in this lab was what materials to use for different things. I also learned how to make things sturdier. 2 What building malerial did you use to build your house? My house is made.autof brick and/or clay brick and wood. 3 Did your results support or fail to support your hypotheses? Type Here IN 4 What were the densities of the malerials you chose for the was ond floor for the home in Thy Worlar Type Here Why do you think a building material's density is important when building homes or architectural structures? Type Here Why wouldn't you choose wood or aluminium for the lalches on your house? Type Here Help Improve Office Notes​

Answers

Answer:

Here’s the answer

Explanation:

What is the temperature 51°C expressed in kelvins?

Answers

Answer:

The answer is

324 K

Explanation:

To express a given temperature in degree Celsius to Kelvin simplify add 273 to the given value

That's

K = 273 + °C

where

K = Kelvin

°C = value in degree Celsius

From the question the value to be converted is 51°C

It's equivalent in Kelvin is

K = 273 + 51

We the final answer as

324 K

Hope this helps you

A proton and a neutron are each close to a positive nucleus.
How does the charge on the nucleus affect the proton and the neutron, if at all?
A The neutron is attracted; the proton is repelled.
B The neutron is not affected; the proton is repelled.
C The proton is attracted; the neutron is repelled.
D The proton is not


Answer : The same charges will repel, since all protons are positively charged they will all repel so protons will repel. Neutrons don’t carry a charge so they can’t be repelled
So the answer is B: the neutron is not affected; the proton is repelled

Answers

Answer:

B

because the proton is positively charged and like charges repel, the neutron doesn't have a charge so nothing happens to it

Wait you wrote the answer in the question??

The way charge on the nucleus affect the proton and the neutron, if at all is the neutron is not affected; the proton is repelled.

What is electric charge?

Electric charge refer to the physical property of a particle which direct or influence how it react to electric or magnetic force acting on it.

Therefore, The way charge on the nucleus affect the proton and the neutron, if at all is the neutron is not affected; the proton is repelled.

Learn more about electric charge below.

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yo someone please help meee The density of silver is 10.5 g/cm3. What is the mass (in kilograms) of a cube of silver that measures 0.69 m on each side?

Answers

Mass=volume x density

Mass of the cube of silver is 3,449.34 kg

First find the volume of the cube in centimeters because the density is in centimeters:

0.69 * 100 = 69 centimeters

Volume = Side * Side * Side

= 0.69 x 0.69 x 0.69

= 328,509 cm³

The density of a material is calculated by the formula:

= Mass / Volume

As you have the density already and the volume, you can get the mass:

10.5 = Mass / 328,509

Mass = 10.5 * 328,509

= 3,449,344.50 grams

A kilogram is 1,000 grams so the mass in kg is:

= 3,449,344.50 / 1,000

= 3,449.3445 kilograms

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What must occur in order for a chemical reaction to be specifically classified as endothermic instead of
exothermic?

Atoms are rearranged.

Chemical bonds are formed.

Energy is released in the form of heat.

Energy is absorbed in the form of heat.

Answers

Answer:

A

Explanation:

What must happen in order for a chemical reaction to be specifically classified as endothermic instead of exothermic is that energy is absorbed in the form of heat.

Chemical reactions can be exothermic or endothermic depending on whether it gives off or absorb energy (in the form of heat).

When energy is given off by a reaction, the temperature of the reaction vessel becomes warmer than the initial temperature before the reaction. Such a reaction is said to be exothermic.

For endothermic reactions, heat energy is absorbed from the surrounding. Thus, the reaction vessel appears colder when compared to the initial temperature before the reaction.

More on exothermic and endothermic reactions can be found here: https://brainly.com/question/4345448

Which of the following is an example of a science occupation that studies non living systems? A) physical scientists B) life scientists C) natural science technicians D) biological technicians

Answers

Answer:

A) physical scientists

Answer:

Life Scientist

Explanation:

I just got it wrong this is through (Edge-nuity)

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12z - 3 > 27z- 15 Answer terms in mixed number. Exercise 1-8A Prepare a balance sheet (LO1-3) Wolfpack Construction has the following account balances at the end of the year. Accounts Balances Equipment $ 26,000 Accounts payable 3,000 Salaries expense 33,000 Common stock 11,000 Land 18,000 Notes payable 20,000 Service revenue 39,000 Cash 6,000 Retained earnings ? Required: Use only the appropriate accounts to prepare a balance sheet. An example of an extensive physical property isGroup of answer choicesmassdensityboiling pointmelting point On 3/15/20, Robertson Corp. bought land from Lear, Inc. for $248,000. Lear had carried the land on its books at $240,000. Robertson paid $50,000 in cash and signed a note payable for the balance. On 12/19/20, Davis Co. offered to buy the land from Robertson for $252,000. On its 12/31/20 balance sheet, Robertson should show the land account at: As a precursor to the articles of confederation, hat political rights does jefferson declare that the united states possesses that are similar to other independent nations at the time How many kinds of atoms are there To create an effective study schedule, a student mustguess the amount of time needed for studying.O write down all activities and commitments.O allow the same amount of time each day for studying.O budget periods of time to study daily, even if it is interrupted. What is the conjugated and infinitive verb in this sentence?Aujourdhui, cest le mercredi 23 septembreMa famille va voyager la montagne la semaine prochaine parce que nous voulons faire du ski. Choose the correct translation of the following words.a clockun relojuna relojO el relojO la reloj A certain element XX has four isotopes. 5.845% of XX has a mass of 53.93961 amuamu. 91.75% of XX has a mass of 55.93494 amuamu. 2.123% of XX has a mass of 56.93539 amuamu. 0.2820% of XX has a mass of 57.93328 amuamu. What is the average atomic mass of element XX? Express your answer numerically to four signif por que al acercar el globo frotado al otro tienden a acercarse? A truck rental company rents a truck for one day by charging $39 plus $1 per mile. Write a linear model that relates the cost C, in dollars, off the renting truck to the number of M miles driven. Which sentence contains incorrect coordination? A)I will arrive in the morning or in the afternoon. B)I will be finished but quick! C)The puppy was cute and fluffy. D)Bill and Sally plan to go to Texas or Alaska. At a particular restaurant, each chicken wing has 75 calories and each slider has 250 calories. A combination meal with chicken wings and sliders is shown to have 800 calories and twice as many chicken wings as there are sliders. write a system of equations that could be used to determine the number of chicken wings in the combination meal and the number of sliders in the combination meal. Define the variables that you use to write the system. Identify the career cluster being described in each example.promotion and customer support for products and services:generation of power and making it available to people:performing for and sharing information with others:teaching people and supporting learners: pls helppp due soon ty What words can be used as a word and what do they mean? What is the prefix in infrastructure? Kendra was trying to decide which type of frozen yogurt to restock based on popularity: flavors with chocolate or flavors without chocolate. After studying the data, she noticed that chocolate flavors sold best on the weekdays and on the weekends, but not best overall. Which paradox has Kendra encountered 6. How many 1/2 hour periods will make up 4 hours?