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BartSMP [9]
2 years ago
7

An atom that has 84 protons and 86 neutrons undergoes a reaction. At the end of the reaction, it has 82 protons and 84

Chemistry
2 answers:
andre [41]2 years ago
8 0

Answer:

I think its A. It accepted radiation in a chemical reaction, hope this helped.

larisa86 [58]2 years ago
6 0

Answer:

D

Explanation:

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Nitrogen - 14.0067
alina1380 [7]

Answer:

potasium to erbium

Explanation:

3 0
3 years ago
Bases in solution produce what type of ions?
Natali [406]
Bases produce hydroxide ions, while acids produce hydrogen ions. 

Bases have a pH of above 7, and are bitter and slippery. 

Answer: <span>c. hydroxide ions</span>
4 0
2 years ago
If an element has a half life of one million years, how long will it take to be completely gone
Aleonysh [2.5K]
It should be 2 million years
3 0
2 years ago
What happens to the volume of a gas in a closed container if the temperature increases, but the pressure remains the same? Why?
labwork [276]

Answer:

Volume will goes to increase.

Explanation:

The given problem will be solve through the Charles Law.

According to this law, The volume of given amount of a gas is directly proportional to its temperature at constant number of moles and pressure.

Mathematical expression:

V₁/T₁ = V₂/T₂

V₁ = Initial volume

T₁ = Initial temperature

V₂ = Final volume  

T₂ = Final temperature

So when the temperature goes to increase the volume of gas also increase. Higher temperature increase the kinetic energy and molecules move randomly every where in given space so volume increase.

Now we will put the suppose values in formula.

V₁/T₁ = V₂/T₂

V₂ = V₁T₂/T₁  

V₂ = 4.5 L × 348 K / 298 k

V₂ = 1566 L.K / 298 K

V₂ = 5.3 L

Hence prove that volume increase by increasing the temperature.

3 0
3 years ago
When hydrogen peroxide (H2O2) is added to potassium iodide (KI) solution, the hydrogen peroxide decomposes into water (H2O) and
riadik2000 [5.3K]

Answer:

D. Catalyst

Explanation:

Because a Catalyst is a substance that causes or accelerates a chemical reaction without itself being affected.

5 0
2 years ago
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