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Nastasia [14]
3 years ago
12

What do potential and kinetic energy have in common?

Chemistry
1 answer:
erik [133]3 years ago
6 0
D. Potential is not moving, while kinetic is moving.
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A student inflates a balloon with helium then places it in the freezer. The student should expect
g100num [7]

Answer:

The frozen balloon shrank because the average kinetic energy of the gas molecules in a balloon decreases when the temperature decreases. This makes the molecules move more slowly and have less frequent and weaker collisions with the inside wall of the balloon, which causes the balloon to shrink a little.

Explanation:{ BOOM}***

6 0
3 years ago
Does phosphate have the ability to conduct electricity?
baherus [9]

Answer:

Red phosphorous can vary in colour from orange to purple, due to slight variations in its chemical structure. The third form, black phosphorous, is made under high pressure, looks like graphite and, like graphite, has the ability to conduct electricity.

Explanation:

4 0
3 years ago
What mass of K2CO3 is needed to prepare 200. mL of a solution having a potassium ion concentration of 0.150 M
I am Lyosha [343]

<u>Answer:</u>

2.07 grams

<u>Explanation:</u>

We know that the molecular mass of K_2CO_3 is 138.205 grams.

In order to find out how many grams we need to make 200 mL having a potassium ion concentration of 0.150, we need to find the number of moles first.

M = moles / liters

0.150 = x / 0.200

x = 0.03 moles

Since there are 2 potassium atoms in each molecule of K_2CO_3 so we will divide this number by half and multiply it by the molecular mass.

0.03/2 = 0.015 moles

Mass of K_2CO_3 needed = 0.015 × 138.205 = 2.07 grams

4 0
3 years ago
How many joules of heat are absorbed to raise the temperature of 650 grams of water from 5.00c to it's boiling point, 100c
xenn [34]

Answer : The amount of heat absorbed are, 258485.5 J

Solution :

Formula used :

Q=m\times c\times \Delta T=m\times c\times (T_{final}-T_{initial})

where,

Q = heat gained  = ?

m = mass of water = 650 g

c = specific heat of water = 4.186J/g^oC      

\Delta T=\text{Change in temperature} 

T_{final} = final temperature = 100^oC

T_{initial} = initial temperature = 5^oC

Now put all the given values in the above formula, we get the final temperature of copper.

Q=650g\times 4.186J/g^oC\times (100-5)^oC

Q=258485.5J

Therefore, the amount of heat absorbed are, 258485.5 J

7 0
3 years ago
Which of the following is a combustion reaction
natima [27]
I didnt see the answers for answer your question
5 0
3 years ago
Read 2 more answers
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