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krek1111 [17]
4 years ago
12

Nitrogen has the atomic number 7. an isotope of nitrogen containing seven neutrons would be

Chemistry
1 answer:
BigorU [14]4 years ago
8 0
An isotope of nitrogen containing 7 neutrons would be nitrogen-7
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A student sees a change in mass in the lab when mixing two chemicals what is a possible explanation?
Hitman42 [59]

Answer:

The mixing of two chemicals may result in the production of a gas which is lost to the air. This will reduce the mass of the chemical mixture, because mass is being lost in a gaseous form.

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3 years ago
Which of these is a form of a chemical weathering
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Chemical weathering is caused by rain water reacting with the mineral grains in rocks to form new minerals (clays) and soluble salts. These reactions occur particularly when the water is slightly acidic.
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3 years ago
What is the molar mass of cholesterol if 0.00105 mol weigh 0.406 g?
Rudiy27

Answer:

387 g/mol

Explanation:

The molar mass is a ratio comparing a substance's mass and molar value. The specific ratio looks like this:

Molar Mass (g/mol) = mass (g) / moles

You can plug the given values into the ratio to find the molar mass.

Molar Mass = mass / moles

Molar Mass = 0.406 g / 0.00105 mol

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