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IgorLugansk [536]
3 years ago
12

When testing for hydrogen gas in the laboratory a glowing splint is inserted into the gas which results in a pop sound. What is

associated with the formation of the pop sound?
A. physical change
B. chemical change
C. exothermic reaction
D. endothermic reaction​
Chemistry
1 answer:
Advocard [28]3 years ago
5 0
C. Exothermic reaction I guess
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Duncan takes a break from studying and goes to the gym to swim laps If swimming burns amount of time ? 85 * 10 ^ 5 cal per hour
Volgvan

When 6.85×10⁵ cal is converted to kilojoules, the result obtained is 2866.04 KJ

<h3>Data obtained from the question </h3>
  • Energy (cal) = 6.85×10⁵ cal
  • Energy (KJ) =?

<h3>Conversion scale </h3>

1 cal = 0.004184 KJ

<h3>How to convert 6.85×10⁵ cal to kilojoules</h3>

1 cal = 0.004184 KJ

Therefore,

6.85×10⁵ cal = 6.85×10⁵ × 0.004184

6.85×10⁵ cal = 2866.04 KJ

Thus, 6.85×10⁵ cal is equivalent to 2866.04 KJ

Learn more about conversion:

brainly.com/question/2139943

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I think it got deleted but the answer is Ammonium acetate maybe this is why it got deleted 10-9=1
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Naming chlorine as an Ion
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The name of the ion is chloride.

To name a <em>monatomic anion</em>

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• <em>Add the ending</em> <em>ide</em> (chlor + ide → chloride)

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5. Any push or pull acting on an object is called a ?
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Answer:

C. force

Explanation:

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