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3 years ago

10. The numbers 3 and 8 in the chemical formula for propane, C3H8, are given a special name. They are called

1 answer:

7 0

Answer: The numbers 3 and 8 in the chemical formula for propane, $C_{3}H_{8}$ , are given a special name. They are called subscripts.

Explanation:

The chemical formula of propane is $C_{3}H_{8}$ . The numbers written at the lower end of an alphabet while writing a chemical formula are called subscripts.

For example, in $C_{3}H_{8}$ the subscripts are numbers 3 and 8.

This also means that there are 3 carbon atoms and 8 hydrogen atoms present in a molecule of propane.

Thus, we can conclude that the numbers 3 and 8 in the chemical formula for propane, $C_{3}H_{8}$ , are given a special name. They are called subscripts.

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A solid object has a mass of 1.62 lb and a volume of 190 mL.

Pachacha [2.7K]

The density of a solid object that has a mass of 1.62 lb and a volume of 190 mL is 3.87g/mL.

<h3>How to calculate density?</h3>

Density is the measure of the mass of matter contained by a unit volume. It can be calculated by dividing the mass of the substance by its volume.

According to this question, a solid object is said to have a mass of 1.62 lb and a volume of 190 mL.

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3 years ago

Chromium-51 is a radioisotope that is used to assess the lifetime of red blood cells The half-life of chromium-51 is 27.7 days.

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Answer:

11.9g remains after 48.2 days

Explanation:

All isotope decay follows the equation:

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<em>Where [A] is actual amount of the isotope after time t, k is decay constant and [A]₀ the initial amount of the isotope</em>

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4 years ago

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10. The numbers 3 and 8 in the chemical formula for propane, C3H8, are given a special name. They are called​

10. The numbers 3 and 8 in the chemical formula for propane, C3H8, are given a special name. They are called