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liq [111]
3 years ago
15

What is true about an atom in an excited state? Select all that apply:

Chemistry
1 answer:
AnnyKZ [126]3 years ago
4 0

Explanation:

What is true about an atom in an excited state? Select all that apply:

A. It is less likely to enter chemical reactions.

B. It is more likely to enter chemical reactions.

C. It has less energy than a ground state atom.

D. It has more energy than a ground state atom.

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For each pair; which has higher kinetic energy?
RideAnS [48]

Explanation:

Kinetic energy is defined as the energy obtained by an object due to its motion. Whereas energy obtained by an object due to its position is known as potential energy.

(a)   When a sled is resting at the top of a hill then it means the sled in not moving. Hence, then it has only potential energy. But when a sled sliding down the hill  then it is moving from its initial position.

Hence, when a sled is sliding down the hill then it has higher kinetic energy.

(b)    When water is above the dam then it only has potential energy but when the water falls over the dam then it has higher kinetic energy.

6 0
3 years ago
Read 2 more answers
Electrolysis is an endothermic process when an electric current is passed through water and separates it into hydrogen and oxyge
azamat

Answer:

IM SORRY I NEED THIS ONE

Explanation:

pls dont report

3 0
3 years ago
What is the chemical formula for 2-propanol?
monitta

i think the answer is  C3H8O

8 0
3 years ago
In an ionic compound, the size of the ions affects the internuclear distance (the distance between the centers of adjacent ions)
jeyben [28]

Answer:

Li2S> Na2S> K2S> CsS

Explanation:

The lattice energy of ionic species depends on the relative sizes of ions in the ionic compounds. As the size of ions increases, the lattice energy decreases and vice versa.

When the size of the anions are the same, the lattice energy now depends on the relative sizes of the cations. Therefore, since all the compounds are sulphides and the order of magnitude of ionic sizes is: Li^+ < Na^+ < K^+ < Cs^+.

Therefore, the order of decrease in lattice energy is; Li2S> Na2S> K2S> CsS

7 0
3 years ago
Va rog ! urgent! E pt chimie ​
n200080 [17]

Answer:

An element

It stays shiny

Explanation:

Pure Gold is an element.

An element is a distinct substance that cannot be split-up into simpler substances. Such substances consists of only one kind of atom.

There are over a hundred elements known to date.

As an element, Gold is classified as a metal due to its very unique set of properties.

One of the indicator that gold does not react with oxygen is that it stays shiny. It does not give rusty look when exposed to air.

Substances that combines with oxygen have a rusty look or change appearance when expose to air. For example, iron.

5 0
3 years ago
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