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djyliett [7]
4 years ago
14

WILL GIVE BRAINIEST IF HELP Which of these is a compound

Chemistry
1 answer:
NikAS [45]4 years ago
5 0

b the awnser is b its a compound of carbon C and 2 oxygon atoms O sub 2

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Oxygen gas is at a temperature of 40 Celsius when it occupies a volume of 2.3 L. To what temperature should it be raised to occu
Scrat [10]

Answer:

The temperature should be 885K.

Explanation:

In this case we use Charles's Law according to which the volume and temperature of a certain amount of gas are related, keeping the pressure constant. We convert the unit of temperature from Celsius to Kelvin: 0 = 273K -> 40 ° C = 40 + 273 = 313K

V1 / T1 = V2 / T2

2,3L/313K= 6,5L/T2

T2=6,5L/(2,3L/313K)=884, 56K

7 0
3 years ago
Which best explains how heat plays a role in the movement of materials within Earth's interior?
Tema [17]

Answer:

Hot material near Earth's surface is more dense and sinks, and when it cools, it becomes less dense and rises.

Explanation:

Convection is a process by which less dense material rises and more dense material sinks near Earth's surface. Water, air, rocks and other materials expands when temperature rises and they become less dense. When the water is heated it becomes vapors and carries away thermal energy from the water.

6 0
4 years ago
Read 2 more answers
There’s a part two for this but I can’t fit it all in this image, if you know how to do this please help me out. I’m stuck on th
Alina [70]

Answer:

See explanation

Explanation:

According to the law of conservation of mass; the total mass of reactants on the left hand side of the reaction equation is equal to the total mass of products on the right hand side of the reaction equation.

Hence, the total mass of each atom on either side of the reaction equation should be exactly the same.

Since there are two atoms of oxygen on the reactants side, the total mass of oxygen = 16 amu * 2 = 32 amu

Since there are two oxygen atoms on the products side, total mass of oxygen = 16 amu * 2 = 32 amu

8 0
3 years ago
Kareem wants to dissolve rock salt in a glass of water at
Mars2501 [29]
Add hot water into the glass
5 0
3 years ago
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Look at the graph
Vlad [161]

Answer:

a item dropping

Explanation:

KE is movement and PE is height. As it's falling it gets KE and falls downward giving it more KE and less PE

7 0
3 years ago
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