All categories

3 years ago

When you heat a substance what happens to the molecules

Chemistry

2 answers:

tatyana61 [14]3 years ago

6 0

I'm pretty sure they come closer, and on the small chance i'm wrong, they separate.<span />

Flauer [41]3 years ago

5 0

When heat is applied to molecules, they speed up and separate, that's why water turns to steam. Hope this helps!

You might be interested in

How many grams of CO2 are used when 7 g of oxygen are produced

lara [203]

308 grams of co2 is used

4 0

2 years ago

What information does a phase diagram give

Finger [1]

The amount of energy required to change the temperature or phase of a reactant

7 0

3 years ago

What is factor that is covered up by another trait Dominant or recessive

Veseljchak [2.6K]

Answer: Recessive

Explanation: The recessive trait is often faded away by the dominant/other

Also looking at the word dominant it means powerful, most important, influential meaning it would most likely overpower

Goodluck :)

7 0

2 years ago

Electrons are embedded in a mass of positively<br> charged matter.

grandymaker [24]

Answer:

plum pudding model .

Explanation:

the electrons were 'like plums embedded in a pudding'. Also called the Raisin Bread Model.

5 0

3 years ago

Purification of copper can be achieved by electrorefining copper from an impure copper anode onto a pure copper cathode in an el

Likurg_2 [28]

Answer: 281 hours

Explanation:-

1 electron carry charge= $1.6\times 10^{-19}C$

1 mole of electrons contain= $6.023\times 10^{23}$ electrons

Thus 1 mole of electrons carry charge= $\frac{1.6\times 10^{-19}}{1}\times 6.023\times 10^{23}=96500C$

$Cu^{2+}+2e^-\rightarrow Cu$

$96500\times 2=193000Coloumb$ of electricity deposits 1 mole or 63.5 g of copper

0.0635 kg of copper is deposited by 193000 Coloumb

11.5 kg of copper is deposited by= $\frac{193000}{0.0635}\times 11.5=34952756$ Coloumb

$Q=I\times t$

where Q= quantity of electricity in coloumbs = 34952756 C

I = current in amperes = 34.5 A

t= time in seconds = ?

$34952756 C=34.5A\times t$

$t=1013123sec=281hours$

Thus it will take 281 hours to plate 11.5 kg of copper onto the cathode if the current passed through the cell is held constant at 34.5 A.

8 0

3 years ago