Chemistry College

At which point is the compound a solid?

1- F
2- G
3- H
4- I

At Which Point Is The Compound A Solid?1- F2- G3- H4- I

Answers

Answer 1

Answer:f

Explanation:

Plz give brainlest

Related Questions

Could a copper metal container be used to store a solution of silver nitrate

Answers

Answer:

a

Explanation:

because that is .y answee

GIVING BRAINLIEST TO CORRECT ANSWER

Friction__

A. happens whenever work is done
B. occurs when objects rub against each other
C. releases energy as heat
D. all of the above

Answers

Answer:

B) occurs when objects rub against each other

Explanation:

Answer:

B. occurs when objects rub against each other

Explanation:

Friction is a force between two surfaces that are sliding, or trying to slide, across each other. ... Friction always works in the direction opposite to the direction in which the object is moving or trying to move. Friction always slows a moving object down.

QUESTION 2:
The molar mass for this compound is 60.11 g/mol.

The molecular formula for this compound is

Answers

I need more context, what elements are in it and what percentage are they?

where do these all go?

Answers

Answer:

The one inside with "+"--- Protons

The grey ones inside--neutrons

The ones on the electron orbits---electron

Everything is called an atom

Explanation:

Gas A has a partial pressure of 6 atm. Gas B has a partial pressure of 2 atm.
What is the partial pressure of Gas C, if the total pressure of the combined
gases is 10 atm?

Answers

Answer:

2 atm

Explanation: add both partial pressures and subtract from total pressure

Which is one factor that increases the speed of a sound wave? A. higher temperature B. lower temperature C. traveling in a liquid rather than a solid D. traveling in a gas rather than a liquid

Answers

C. A sound wave travels faster in less dense material

Answer: c

Explanation:


What is plotted on the Y axis
Speed
Distance or time

Answers

It is distance

Cause if you look on the side it says distance

__H2 + __O2 --> __H2O

If 42.3 moles of water are produced, how many moles of hydrogen gas was reacted?

Answers

Answer:

42.3moles

Explanation:

The chemical equation given in this question is as follows:

H2 + O2 → H2O

However, this equation is unbalanced, the balanced chemical equation is as follows:

2H2 + O2 → 2H2O

This equation shows that;

2 moles of hydrogen gas (H2) will produce 2 moles of water (H2O)

Hence, If 42.3 moles of water (H2O) are produced, 42.3 × 2/2

= 42.3moles of hydrogen was reacted.

what is Newton first law​

Answers

Answer:

law of inertia hope it helps

We have observed evidence that when M-NM compounds are dissolved, the metal particles tend to form positively charged ions (cations), while non-metal particles tend to form negatively charged ions (anions).

a. True
b. False

Answers

Answer:

a. True

Explanation:

From Thomson's Plum Postulate on Pudding model of an atom, he posits that particle includes electrons that are encircled by a circle of positive charge to adjust the negative charges of electrons, which is fundamentally the same as way like negatively charged "plums" is getting encased by positively charged pudding.

Hence, the above statement is true.

Determine the molecular and empirical formulas for the substance shown in the ball-and-stick model below.

Answers

Molecular formula: C6H6
Empirical formula: CH

The molecular and empirical formulas for the following model is C6H6  and CH respectively.

What do you mean by empirical and molecular formulas ?

The empirical formula gives the smallest whole number ratio between elements in a compound.

The molecular formula gives the actual whole number ratio between elements in a compound.

Note on C6H6-

Benzene (C6H6), simplest organic, aromatic hydrocarbon and parent compound of numerous important aromatic compounds.

It contains six carbon and hydrogen atoms each.

The molecular and empirical formulas for the following model is C6H6  and CH respectively.

Learn more about ,empirical and molecular formulas ,here:

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How would you prepare a 1 L solution of 3 M MgO?

Answers

Answer:

You need to measure 120.9132 grams of MgO and add to 1 liter of distilled water in a beaker.

Explanation:

Capital M stands for molarity, or moles/liter. So 3 M MgO means 3 moles per liter of MgO.

1 L × [tex]\frac{3 moles MgO}{1 L MgO}[/tex] = 3 moles MgO

This means you need to measure 3 moles MgO to put into 1 Liter of water.

But you don't know how much that is, so you need to convert moles to grams.

First you need to find how many grams are in 1 mole of MgO.

You can search the molar mass of MgO online to get: 40.3044 g

But if you don't have the internet, use the periodic table to add the masses of Mg and O: 24.305 g + 15.999 g = 40.3044 g

Then write the fraction so that the units cancel out, so you get grams by itself on the top of the fraction.

1 L × [tex]\frac{3 moles MgO}{1 L MgO}[/tex] × [tex]\frac{40.3044 g MgO}{1 mole MgO}[/tex] = 120.9132 g MgO

You need to measure 120.9132 grams of MgO and add to 1 liter of distilled water.

We will prepare 1 L solution of 3 M MgO, by dissolving 120.91 grams of MgO in 1 litre of water.

How molarity is define?

Molarity is define as the no. of moles of solute dissolve in per liter if solvent or solution & it is represented as:

M = n / v

In the question, it is given that:

Molarity of MgO = 3M i.e. 3 moles of MgO is present in 1 liter of solution.

So, we have moles of MgO = 3 moles

Now, we convert moles of MgO to grams to know how much of solute is required, in the following manner:

n = W / M, where

M = molar mass of MgO = 40.30 g/mole

W = to find?

W = 3 mole × 40.30 g/mole = 120.91 grams

Hence, 120.91 grams of MgO is required.

To know more about molarity, visit the below link:

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Science has had no negative impacts on society. Please select the best answer from the choices provided T F

Answers

Answer:

false

Explanation:

not all science is good, or has good effects

False.

Science can possibly be dangerous when used by the wrong people. It can be used to create bombs, bioweapons, and much more.

Please mark Brainliest if this was helpful, and let me know if you have questions! :)

Explain whether chromium is more or less reactive than aluminium.

Answers

Answer: Chromium is less reactive as compared to Aluminium as it can not easily electrons as aluminium.

Explanation:

The arrangement of metals in a series according to the decreasing order of their reactivity is called reactivity series.

The metals that are placed above hydrogen are more reactive and those below hydrogen are less reactive.

A metal placed above another metal can displace lower metal from its salt solution. Thus a metal placed above in series is more reactive than metals placed below it.

As aluminium can easily lose electrons as compared to chromium , it is more reactive than Chromium.

When all colors are absorbed, you see:

black
white
green
yellow

Answers

uhmm, white.

Explanation:

you'll basically look like blind ig

1. How many electrons are in Argons outer shell?
2. How many electrons are in Lithium's outer shell?
3. How many times can Oxygen bond?
4. What is the charge on a phosphorus ion?
5. What is the charge on a calcium ion?​

Answers

Answer:

jwwnwwjkqnwjwmwnqnqwnmqaj

Answer:

1. 8

2.1

3.4 times

4.3-

5. 2+

Explanation:

1. it qualifies under the octet rule and is completely stable.

2. 1 because  it fills every shell and has one left over

3. each time an element like oxygen bonds it can be surrounded by 8 electrons in order to be stable and each line that you may see counts as two electrons so it can have 1 bond line in each direction.

4.&5. It just is that way

Even when an object appears to be at rest, its atoms and molecules are in constant motion

A.true

B.false

(6th-grade science please help)​

Answers

Answer:

the answer is True

Explanation:

the answer is True

Did you ever rediscover something of yours that you
had forgotten? How did you react?

Answers

Answer:

Yes It was a 147 yr old knife it had been passed down for a few generations we were glad to find it again i will pas it down one day too

Explanation:

When we rediscover something that we had missed years ago we feel very happy. This happiness will come in everyone's face without any difference in the ages.

What is rediscover?

The term rediscover indicates to find something or someone again after losing or forgetting about it, him, or her for a long time. For example in child hood days we all have gone to parks. But now all those parks are a happy rediscovery of childhood.

When i was in the age of 5 my grandfather gifted me a beautiful necklace of gold. I used to wear that in all functions. But one day when i searched it was not at my room. I cried a lot during that time.

But after 5 years, when we are shifting to a new home all the places of our old home is cleaned. During cleaning i got my necklace from an old utensil in the store room. This time i just shocked, i didn't thought that it will again come into my hand.

To know more about discovery, visit;

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the water cycle is continuous process by which ______ moves from Earth's surface to the atmosphere and back again. This cycle is driven by the energy from the ____ and the by the force of______.

Answers

Answer:

1-water 2-Sun 3-Gravity

can you calculate the number of moles in 170 grams of methane (CH4)

Answers

Answer:

1 grams Methane = 0.062334579609362 mole using the molecular weight calculator and the molar mass of CH4. ... errors may occur, so always check the results. Use this page to learn how to convert between grams Methane and mole. Type in your own numbers in the form to convert the units!

Explanation:

1 grams Methane = 0.062334579609362 mole using the molecular weight calculator and the molar mass of CH4. ... errors may occur, so always check the results. Use this page to learn how to convert between grams Methane and mole. Type in your own numbers in the form to convert the units!

The number of moles of methane molecules, CH4, are in 80 grams of methane.
5 moles

how many moles are contained 80.3 gram of sm(no3)3

Answers

Answer:

0.239 mol Sm(NO₃)₃

General Formulas and Concepts:

Math

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Chemistry

Atomic Structure

Reading a Periodic TableMoles

Stoichiometry

Using Dimensional AnalysisExplanation:

Step 1: Define

[Given] 80.3 g Sm(NO₃)₃

[Solve] moles Sm(NO₃)₃

Step 2: Identify Conversions

[PT] Molar Mass of Sm - 150.36 g/mol

[PT] Molar Mass of N - 14.01 g/mol

[PT] Molar Mass of O - 16.00 g/mol

Molar Mass of Sm(NO₃)₃ - 150.36 + 3[14.01 + 3(16.00)] = 336.39 g/mol

Step 3: Convert

[DA] Set up:                                                                                                 [tex]\displaystyle 80.3 \ g \ Sm(NO_3)_3(\frac{1 \ mol \ Sm(NO_3)_3}{336.39 \ g \ Sm(NO_3)_3})[/tex][DA] Divide [Cancel out units]:                                                                        [tex]\displaystyle 0.238711 \ mol \ Sm(NO_3)_3[/tex]

Step 4: Check

Follow sig fig rules and round. We are given 3 sig figs.

0.238711 mol Sm(NO₃)₃ ≈ 0.239 mol Sm(NO₃)₃

Similarities between manner of death and cause of death

Answers

Answer:

The cause of death is the specific injury or disease that leads to death. The manner of death is the determination of how the injury or disease leads to death.

Explanation:

.

the lungs are covered with a thin layer called ________​

Answers

interstitium

#keeponlearning

Answer:

pleura

Explanation:

The lungs are covered by a thin tissue layer called the pleura. The same kind of thin tissue lines the inside of the chest cavity -- also called pleura.

6. Put the sentences in order to show how electrical energy is produced at a coal-fired
electric power plant.
a. The turbine spins a shaft connected to
a generator.
b. Coal is burned in a furnace through
combustion.
c. Kinetic energy is converted to electrical
energy.
d. Pressurized steam is used to spin a
turbine.
e. Heated water is vaporized inside a boiler.

Answers

The answer should be....E,D,A,C,B

what is the difference between the mitochondria and the excretory system?

Answers

Answer:

Mitochondria is a membrane-bound organelle stored in cells and their function is to generate chemical energy to power the cell's biochemical reaction.

The excretory system is an organ system that eliminates wastes, prevents harmful accumulation of chemicals in the body, and maintains the body's chemical concentration.

Explanation:

You have 45.2 liters of SO2. This would be equal to
grams of S02
• Use ROUNDED masses from the periodic table in your calculations
• Answer can ONLY include numbers, no units
• Answer should be 3 digits (no decimals)

Answers

Answer:

you speak spanish

speak spanish

Which refers to a material that causes a wave to bounce off of it?

A) Absorber

B) Reflector

C) Conductor

D) Insulator


THE CORRECT ANSWER IS B.

#edge2021

Answers

Answer:

B: reflector

THe answer on EDG

Answer:

B

Explanation:

EDGE 2021

Where do plants get their energy?

Answers

Answer: they get their energy from the sun.

Explanation:

I need a tutor!!! I really wanna learn but my professor has a language barrier. How many grams of oxygen are required to react with 2.05 g of dihydrogen sulfide?

Answers

It’s About 38 g I think so

Which of the following has the most number of atoms

Answers

Answer:

Explanation:

where is the pic?

Answer:

what are the following? if you can provide them I can try to answer it for you

Explanation:

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