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Alex
3 years ago
13

Devin is watching two runners at the park. The runners are the same weight, and the speed that each of them is running is not ch

anging.
Devin wants to know which runner has the most energy of motion. What would he need to find out about the runners in order to determine this?
Chemistry
2 answers:
Fynjy0 [20]3 years ago
6 0

Answer:

the speed of which they are running.

Explanation:

kupik [55]3 years ago
5 0

Answer:

Reeeeeeeeeerereeeee

Reeeee reee reee ree ree re

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Q1. They are highly reactive. Q2. High reactivity, nonmetallic. Q3. Oxygen has an ion charge of -2. Q4. LiCl I believe. Q5. How electrons are shared. Q6 1. Q7. Share 2 valence electrons, I believe.
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3 years ago
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Find the number of moles of water that can be formed if you have 138 mol of hydrogen gas and 64 mol of oxygen gas.
charle [14.2K]
2H₂₍g₎ + O₂ ₍g₎→ 2H₂O

138 mol H₂ × (2 mol H₂O ÷ 2 mol H₂)= 138 mol H₂O
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128 mol H₂O
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3 years ago
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This is the chemical formula for acetic acid (the chemical that gives the sharp taste to vinegar): An analytical chemist has det
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Answer:

0.11 mol

Explanation:

<em>This is the chemical formula for acetic acid (the chemical that gives the sharp taste to vinegar): CH₃CO₂H. An analytical chemist has determined by measurements that there are 0.054 moles of oxygen in a sample of acetic acid. How many moles of hydrogen are in the sample?</em>

Step 1: Given data

  • Formula of acetic acid: CH₃CO₂H
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Step 2: Establish the appropriate molar ratio

According to the chemical formula of acetic acid, the molar ratio of H to O is 4:2.

Step 3: Calculate the moles of atoms of hydrogen

We will use the theoretical molar ratio for acetic acid.

0.054 mol O × (4 mol H/2 mol O) = 0.11 mol H

3 0
3 years ago
Use IUPAC rules to name this compound. A) nitrogen iodide B) nitrogen triiodide C) mononitrogen iodide D) mononitrogen triiodide
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Answer:

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Explanation:

According to the IUPAC rules, to naming of the compound the following formula can be applied.

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The given compound - NI_{3}

Name of first element- Nitrogen

Base name element of second element - Iodine

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Therefore, name of the compound will be  Nitrogen triiodide..

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If a saturated solution of potassium chloride is cooled from 80℃ to 50℃,how much precipate is formed
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