3 years ago

Hno3 is an arrhenius

1 answer:

3 0

Arrhenius concept just states that if a solution dissociates and forms H+ ions then its an acid, but if it dissociates and forms OH- than it's a base.

So, HNO3 would be classified as an acid

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5.26 grams of Ca atoms to moles.

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Answer:

0.131 moles.

Explanation:

moles=mass ÷ molar mass

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Tonicity (how much salt is in it)

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A sample of carbon-12 has a mass of 6.00 g. How many atoms of carbon-12 are in the sample?

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Convert grams to moles [grams/molar mass] ~ Moles
Convert moles to atoms [moles * 6.02 x 10^23] = Atoms
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3 years ago

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Calculate the density of the cube:<br><br> mass = 150.0 g<br><br> volume = 16.7 cm3

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Answer:

<h3>The answer is 8.98 g/cm³</h3>

Explanation:

The density of a substance can be found by using the formula

$density = \frac{mass}{volume} \\$

From the question

mass of cube = 150 g

volume = 16.7 cm³

We have

$density = \frac{150}{16.7} \\ = 8.98203592...$

We have the final answer as

Hope this helps you

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3 years ago

Given the equation representing a reaction: H + H ---> H₂What occurs during this reaction? a. A bond is broken and energy is

ivanzaharov [21]

Answer:

The correct answer option d.

Explanation:

When chemical bonds are broken energy is supplied to bond to break it where as when bond is formed energy released during that process.

$H + H\rightarrow H_2$ (ΔH = Positive)

The above reaction represents that two hydrogen atoms are combing together to form a single hydrogen gas molecule.During this process bond id forming between two atoms with release in energy.

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