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2 years ago

5

___________ is a characteristic of a substance that's observed during a chemical reaction. *

1 answer:

Tju [1.3M]2 years ago

3 0

Chemical property. Chemical property refers to the characteristic changed

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Why do the air molecules inside a bicycle tire speed up as the temperature gets warmer?

liraira [26]

The correct answer of the given question above would be option A. The air molecules inside a bicycle tire speed up as the temperature gets warmer because the heat is transferred to the molecules and gives them more kinetic energy. <span>When </span>heat<span> is added to a substance, the </span>molecules<span> and atoms vibrate </span>faster<span>. </span>

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2 years ago

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1. If Susan reproduced asexually what would be the outcome if she had offspring? What would they look like?

wel

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They would look exactly like her, when you produce asexually your offspring is a clone of you. The offspring is genetically identical to the parent.

Explanation:

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2 years ago

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mel-nik [20]

Hydrogen, hydrogen ion (H+) is associated with acids

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2 years ago

At 25°C and constant pressure, carbon monoxide gas combines with oxygen gas to give carbon dioxide gas with the evolution of 10.

stealth61 [152]

Answer : The value of $\Delta H$ for the reaction is, -565.6 kJ

Explanation :

First we have to calculate the molar mass of CO.

Molar mass CO = Atomic mass of C + Atomic mass of O = 12 + 16 = 28 g/mole

Now we have to calculate the moles of CO.

$\text{Moles of }CO=\frac{\text{Mass of }CO}{\text{Molar mass of }CO}=\frac{1g}{28g/mole}=\frac{1}{28}mole$

Now we have to calculate the value of $\Delta H$ for the reaction.

The balanced equation will be,

$2CO(g)+O_2(g)\rightarrow 2CO_2(g)$

From the balanced chemical reaction we conclude that,

As, $\frac{1}{28}mole$ of CO release heat = 10.1 kJ

So, 2 mole of CO release heat = $2\times 28\times 10.1=565.6kJ$

Therefore, the value of $\Delta H$ for the reaction is, -565.6 kJ (The negative sign indicates the amount of energy is released)

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3 years ago

All vertbrate have an

Pepsi [2]

They all have endoskeletons that are formed of bone or cartilage. Hope this helped! (:

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