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3 years ago

Are these right? Please help

Chemistry

1 answer:

kotegsom [21]3 years ago

4 0

Explanation:

Question - 14

Answer - A vapour is gas state of matter.

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Question - 13

Answer - Heat is not an example of matter.

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Question - 12

Answer - Compound

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Question - 11

Answer - Chemical Reaction

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Question - 10

Answer - Element

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Question - 6

Answer - Reactant

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Question - 5

Answer - Product

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galina1969 [7]

There's a lot of things built from petroleum, such as toothpaste.

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5 0

3 years ago

A. Is lithium (Li) more or less reactive than beryllium (Be)?

damaskus [11]

Answer:

Li is more reactive then Be.

Explanation:

As you go to the farther left and down on the periodic table, the higher that element reactivity is.

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3 years ago

5. Which of the following is the best explanation why a reaction in a closed container can appear to stop before all the reactan

Alex

Answer: The forward and reverse reactions eventually reach the same rate.

Explanation:

The reactions which do not go on completion and in which the reactant forms product and the products goes back to the reactants simultaneously are known as equilibrium reactions.

Equilibrium state is the state when reactants and products are present but the concentrations does not change with time.

The equilibrium is dynamic in nature and the reactions are continuous in nature. Rate of forward reaction is equal to the rate of backward reaction and it appears as it has stopped.

4 0

3 years ago

Help me with this now please due in 20 mins

user100 [1]

Ca(oh) 2 is calcium hydroxide
So
Calcium in one box
Hydroxide in the other.
Hope this helps!

8 0

2 years ago

Identify Cobalt sulfride

jeyben [28]

It has cobalt and sulfur

7 0

3 years ago