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stich3 [128]
4 years ago
14

What occurs during one half-life?

Chemistry
2 answers:
lorasvet [3.4K]4 years ago
8 0
The half-life of a radioactive compound is the time taken for that said isotope to decay or disintegrate so that only half of the initial atoms remain in that compound. During the decay process, the isotope will give off energy and matter, and the way to depict this is indicated by t 1/2.
son4ous [18]4 years ago
6 0
It's B) <span>Half of a parent isotope undergoes radioactive decay to form a daughter isotope.</span>
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When water is electrolyzed, it splits into hydrogen and oxygen.
Westkost [7]

The mass of water is equal to the combined mass of hydrogen and oxygen.

<h3>What is Mass?</h3>

This is defined as the quantity of matter in a physical body. The electrolysis reaction of water can be seen below:

2 H₂O ---> 2 H₂ + O₂

We can deduce that 36 grams of H₂O dissociated to give 4 grams of H₂ and 32 grams of O₂ which option D was chosen as the appropriate choice.

Read more about Mass here brainly.com/question/25121535

4 0
3 years ago
The nature of zinc powder and Cobalt (II )oxide is heated the following reaction occurs ;
Scilla [17]

1) The metal which reduces the other compound is the one higher in the reactivity. So in this case it is \mathrm{Zn}.

2) The substance which brings about reduction while itself getting oxidised (that is losing electrons) is called a reducing agent. Here, $\mathrm{Zn}$ is the reducing agent and reduces Cobalt Oxide to Cobalt while itself getting oxidised to Zinc oxide.

8 0
3 years ago
What happened when bromine reacted with aluminum?
-Dominant- [34]

Answer:

The reaction begins and builds up heat. This heat causes the aluminum to melt and float on top of the liquid bromine. Wherever the two elements meet, sparks, heat, and light are given off.

Explanation:

4 0
3 years ago
Determain the number of moles in 2.24l of ch4 at stp
valkas [14]

Answer:

0.1 mole of CH₄

Explanation:

From the question given above, the following data were obtained:

Volume of CH₄ = 2.24 L

Number of mole of CH₄ =?

The number of mole of CH₄ can be obtained as follow:

Recall:

1 mole of a gas occupy 22.4 L at stp. This implies that 1 mole of CH₄ occupies 22.4 L at stp.

22.4 L = 1 mole of CH₄

Therefore,

2.24 L = 2.24 × 1 mole of CH₄ / 22.4

2.24 L = 0.1 mole of CH₄.

6 0
3 years ago
How many protons does a nitrogen atom have?<br> 07<br> 0 14<br> 8<br> 05
VLD [36.1K]

Answer:

07.

Explanation:

8 0
3 years ago
Read 2 more answers
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