Pls help I need it ASAP!!!

Pls Help I Need It ASAP!!!
Pls Help I Need It ASAP!!!
Pls Help I Need It ASAP!!!
Pls Help I Need It ASAP!!!

Answers

Answer 1

Answer:

B

Explanation:

because water has the always has the same volume but it can change shape of the glass or container that it is put in


Related Questions

Is steam a water , oxygen or hydrogen molecule ?

Answers

it’s a water molecule

Answer:

In thermolysis, water molecules split into their atomic components hydrogen and oxygen. For example, at 2200 °C about three percent of all H2O are dissociated into various combinations of hydrogen and oxygen atoms, mostly H, H2, O, O2, and OH.

Explanation:

cy sprints 100 meters in 13 seconds going south. what is his average velocity?

Answers

Answer:

Explanation:

This should be in physics.

d = 100 meters south

t = 13 seconds

v = d/t

v = 100 / 13

v = 7.69 m/s going south.

The point is that you have to specify the direction.

What questions might remain that will one day be answered by new technology?

Answers

Answer:

Can we find a safe cure for cancer?

Explanation:

pls mark brainliest

Were new substances created form old substances during electrolysis? Explain.

Answers

Electrolysis, process by which electric current is passed through a substance to effect a chemical change. The substance to be transformed may form the electrode, may constitute the solution, or may be dissolved in the solution.

During electrolysis a metal chemically decompose and deposits on the cathode where as the metal from the other electrode forms its ions in the electrolyte solution.

What is electrolysis?

Electrolysis is the process of chemical decomposition brought out by the passage of electricity through an electrolyte in which the decomposed metal deposits on one electrode.

Electrolysis involves oxidation of one metal and reduction of the other. The prediction of the products of electrolysis requires a consideration of several factors including the potential at which the competing species are discharged at the electrode , if the electrode used are reacted or inert etc.

The oxidation reaction involves the formation of cations in the solution and the reduction involves the deposition of metallic substance at the cathode.

To find more on electrolysis, refer here:

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You will learn in this course that organic compounds have covalent bonds with a significant amount of energy stored in them. This is why we burn fossil fuels to generate energy to heat our homes or drive our cars. Given this information, which of the compounds listed below would you expect to have the most energy is its carbon-carbon bond?

Answers

Answer:

See explanation

Explanation:

This question is obviously supposed to be a multiple choice question but the options are missing.

However, the question intends to test the student's knowledge about combustion of fossil fuels. Fossil fuels are mostly composed of hydrocarbons of different chain lengths.

The longer the chain length, the greater the energy released when the compound is burnt since there are more energy stored in its bonds.

Hence, the correct answer to this question will be the option that contains the greatest number of C-C and C-H bonds.

How many neutrons make up one of these potassium atoms?

Answers

Potassium has twenty neutrons

Answer:

20

Explanation:

Dilute hydrochloric acid reacts with sodium

2HCl(aq) + Na2CO3(aq) + 2NaCl(aq) + H2O(l) + CO2(g)

A Explain why effervescence is seen during the reaction.

Answers

Answer:

Because the reaction releases CO2 gas

Explanation:

therefore creating an effervecence within the solution as the carbonate dissociates

Radio waves are primarily used to

Answers

Answer:

Radio is used primarily for communications including voice, data and entertainment media.

GIVING 5 STARS AND BRAINLY IF YOU ANSWER FIRST AND CORRECTLY
Please answer asap. Thank you.

QUESTION:

How many total elements are involved in the process of photosynthesis?

A. 2
B. 3
C. 4
D. 5

Answers

3 there are three different chemical symbols on each side of the equation

Please answer it correctly and explain clearly

Answers

Answer:

i think that the children will inherit the brown eyes, it is the best answer since the other things cant be inherited and he dyed his hair blonde

Explanation:

Which description applies to a physical property? Choose the correct answer
O depends directly on the amount of the substance present
O examines changes in the composition and structure of matter
O measured or observed without changing the identity and composition of matter
O determined by changing the identity of a substance and observing how it reacts

Answers

Answer:

the third one, measured or observed without changing the identity and composition of matter. because physical property does not under go any change but can be put back.

What happens to an egg that is not fertilized?
OIt is reabsorbed by the body
O It travels back up the fallopian tube.
OIt exits during childbirth.
O It is released during menstruation​

Answers

Answer:

D.  It is released during menstruation

Explanation:

The egg that is not fertilized is  released during  the process of menstruation​.

What is menstruation?

Menstruation (also known as a period, among other colloquial terms) is the regular discharge of blood and mucosal tissue from the inner lining of the uterus through the vagina. The menstrual cycle is characterized by the rise and fall of hormones. Menstruation is triggered by falling progesterone levels and is a sign that pregnancy has not occurred.

The first period, a point in time known as menarche, usually begins between the ages of 12 and 15.Menstruation starting as young as 8 years would still be considered normal.The average age of the first period is generally later in the developing world, and earlier in the developed world. The typical length of time between the first day of one period and the first day of the next is 21 to 45 days in young women. In adults, the range is between 21 and 31 days with the average being 28 days.

Learn more about menstruation,here:

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Where exactly is an orbital? I understand they are a volume where we expect to find electrons 90% of the time but I don't understand where their shapes are and fit on an atom, and the different forms of orbitals confuse me a little. Can someone explain me where they are with the help of an image? Pardon me if my question isn't very clear

Answers

Answer:

95% of the time (or any other percentage you choose), the electron will be found within a fairly easily defined region of space quite close to the nucleus. Such a region of space is called an orbital. You can think of an orbital as being the region of space in which the electron lives

What is hydrochloride acid plus water plus salt and water

Answers

ANSWER:

It is called Caffeine Hydrochloride.
Formula: HC8H10N4O2Cl

When calculating percent error, the accepted value is in the denominator
True or false

Answers

Answer:

True

Explanation:

The answer is TRUE

Have a nice day / night! :)

Elements in group to are cold alkaline earth metals what is most similar about alkaline earth metals how many protons and neutrons they have which Chemical properties he have how many total electrons they have which period They have most often found in

Answers

Answer:

explanations below

Explanation:

The alkaline earth metals are the 6 chemical elements that can be found in group two of the periodic table. These elements have a lot of properties in common, in the sense that they are generally shiny, reactive at standard temperature and pressure and they are also silvery-white. The elements are beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra)

These metals have two electrons at their orbits, which can be easily lost to form cations (with charge +2, and an oxidation state of +2)  

Below are some of their details

Name: Beryllium  

Number of Protons/Electrons: 4  

Number of Neutrons: 5  

Name: Magnesium  

Number of Protons/Electrons: 12  

Number of Neutrons: 12  

Name: Calcium  

Number of Protons/Electrons: 20  

Number of Neutrons: 20  

Name: Strontium  

Number of Protons/Electrons: 38  

Number of Neutrons: 50  

Name: Barium  

Number of Protons/Electrons: 56  

Number of Neutrons: 81  

Name: Radium  

Number of Protons/Electrons: 88  

Number of Neutrons: 138  

8. Which word best describes the element in box number 2?
a а Brittle
b Gas
С Semiconductor
d. Shiny

Answers

Answer:

gas

Explanation:

i think it might be gas

what do you mean by international understanding peace

and cooperation​

Answers

Answer:

International understanding or internationalism is a feeling that the individual is a not only a member of his country, but a member of the world as well.  To ensure world peace.  To prevent world wars.  To promote human welfare. To promote mutual understanding and interdependence.

Which helps in the production of eggs?

Answers

Answer:

Feed Consistency.

Explanation:

Feeding that is supposed to yield the volume of a gnome for our chickens to lay eggs.

The Boxes of Clean Nests.

The Areas Free.

With calcium.

Regularly check it.

Protection Coop.

About fresh water.

Controlling Parasites.

Answer:

A. testosterone

Explanation:

i took the unit test

3. The nucleus:
a. controls all the cell activities
b. controls only part of the cell
c. does not have any activity​

Answers

Answer:

a. controls all the cell activities.

Thank you ☺️

Which further observation led Mendeleev to create the periodic table

Answers

Answer:

Mendeleev realized that the physical and chemical properties of elements were related to their atomic mass in a 'periodic' way, and arranged them so that groups of elements with similar properties fell into vertical columns in his table.

Explanation:

google

What is Mercury's proximity to the sun
PLEASE HELPP

Answers

Answer:

46.943 million km

Explanation:

From an average distance of 36 million miles (58 million kilometers), Mercury is 0.4 astronomical units away from the Sun.

From an average distance of 36 million miles (58 million kilometres), Mercury is 0.4 astronomical units away from the Sun.

(I hope this helped ^^)

A student observes that instant tea dissolves more rapidly in a cup of 250 mL of stirred hot water than in a cup of 250 mL of stirred cold water. Which is the most relevant hypothesis that the student could develop based on this observation?

A.
Volume affects the rate that instant tea dissolves in a solvent.
B.
Temperature affects the rate that instant tea dissolves in water.
C.
Stirring affects the rate that instant tea dissolves in water.
D.
Pressure affects the rate that instant tea dissolves in water.

Please answer my question!

Answers

Answer:

B

Explanation:

In this question, there is no mention of pressure, so we can eliminate answer D. In both cups, it mentions they contain 250 mL of water and both are stirred, so these would be constants. The only difference between the cups is temperature, so temperature must affect the rate that instant tea dissolves in water. Therefore the answer is B.

Convert 122 moles of Methane to liters?

Answers

122 moles of Methane to liters is 2734.5

A metal object has a density of 2 g/ml. When placed in a graduated cylinder with 500 ml of water, the
water rises to 508 ml. What is the mass of the metal object?

Answers

Answer:

The answer is 16 g

Explanation:

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

mass = Density × volume

From the question

density = 2 g/ml

volume = final volume of water - initial volume of water

volume = 508 - 500 = 8 mL

We have

mass = 2 × 8

We have the final answer as

16 g

Hope this helps you

1. Collect data: Create two water cycles using the Gizmo. Each cycle should have at least four steps and should begin and end at the same location. Choose any starting point from the list on the right. When the cycle is complete, choose the PATH tab and write the steps below.

Answers

Answer:

Cycle 1: Lake,atmosphere, clouds,rain,lake

Cycle 2: Atmosphere, clouds, rain, ocean

What is the last energy level of N? Mg?

Answers

Answer:

2

3

Explanation:

To infer the last energy of the given atoms, we need to write their electronic configuration:

For N = 1S² 2S² 2P³

     Mg  = 1S² 2S² 2P⁶ 3S²  

The energy levels are usually designated as;

   n = 1

   n = 2

   n = 3

   n =4

For N, the last energy level is 2

     Mg, the last energy level is 3

We can also determine this number by the periods the atoms can be found.

Chemistry Data Analysis --
7.86 x 10^-15 x 3.9 x 10^-10​

Answers

Answer:

3.065 x 10^-24

Explanation:

hope this helps

1. Using a triple beam balance and a graduated cylinder, a student collected data on a sample of an
element:
Mass of sample - 67.9 g
Volume of water - 52.0 ml
Volume of water and sample - 28.0 ml
a) Calculate the density of the sample. Show all work and use significant figures and units.

Answers

Answer:

d = 2.8 g/mL

Explanation:

Given data:

Mass of sample = 67.9 g

Volume of water = 28.0 mL

Volume of water + sample = 52.0 mL

Density of sample = ?

Solution;

Density is equal to the mass of substance over volume of substance.

Formula:

d = m/v

d = density

m = mass

v= volume

Now we will calculate the volume of sample.

Volume of sample = (volume of water+ sample) - volume of water

Volume of sample = 52.0 mL - 28.0 mL

Volume of sample = 24.0 mL

Now we will calculate the density.

d =67.9 g /24.0 mL

d = 2.8 g/mL

What would happen if there were 3 protons and 0 neutrons in the nucleus of an atom?

Answers

Answer:

the atom will be positife atom

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