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liberstina [14]
3 years ago
14

Which of the following represents a chemical property of hydrogen gas?

Chemistry
2 answers:
dexar [7]3 years ago
5 0
It is tasteless and colorless.
Korvikt [17]3 years ago
4 0

Answer: Option (C) is the correct answer.

Explanation:

A property that does not bring any change in chemical composition of a substance are known as physical properties.

For example, change in shape, size, mass, volume, density, etc are all physical properties.

Whereas a property that brings changes in chemical composition of a substance are known as chemical properties.

For example, reactivity, toxicity, combustibility etc are all chemical properties.

Thus, we can conclude that it reacts explosively with oxygen represents a chemical property of hydrogen gas.  

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Assuming 80 mg of vitamin c present 29.57 ml if oj how many milliliters of 0
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Which of the following is a unit of heat? 1. Fahrenheit 2. Energy 3. Joule 4. Celsius
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A chemist measures the energy change ?H during the following reaction:
slamgirl [31]

Answer:

Endothermic

It absorbs heat

1.20 × 10³ kJ

Explanation:

Let's consider the following thermochemical equation.

2 H₂O(l) → 2 H₂(g) + O₂(g)    ΔH = 572 kJ

Since ΔH > 0, the reaction is endothermic, that is, it absorbs heat when H₂O reacts.

572 kJ are absorbed when 36.03 g of water react. The heat absorbed when 75.8 g of H₂O react is:

75.8 g H₂O × (572 kJ/36.03 g H₂O) = 1.20 × 10³ kJ

5 0
3 years ago
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