3 years ago

Which phrase describes radiation?

Chemistry

1 answer:

stepan [7]3 years ago

3 0

Answer:

The process in which energy is emitted by one object ,transmitted through .......

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8. As the temperature of a mixture increases, one part of the mixture may 2 points

disa [49]

Answer:

It's false

Explanation:

Mixtures are always combinations of the same compounds that are at different states.

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3 years ago

A sealed flask contains 3.82 x 1024 molecules of CO, How many moles of Co, are in the flask?

Lynna [10]

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3.82 × 1024

= 3911.68

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2 years ago

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Which atoms were needed to form the sodium nitrite?

alex41 [277]

Answer:

Molecular Formula : NaNO2 or NNaO2 and Molecular Weight:

68.995 g/mol

Explanation:

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3 years ago

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Elza [17]

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3 years ago

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This patient has a bone density of 820mg/cm3. What is the volume of a 25g sample?

mamaluj [8]

<u>Answer:</u> The volume of bone for given sample is $30.49cm^3$

<u>Explanation:</u>

To calculate volume of a substance, we use the equation:

$\text{Density of substance}=\frac{\text{Mass of substance}}{\text{Volume of substance}}$

Density of bone = $820mg/cm^3=0.82g/cm^3$ (Conversion factor: 1 g = 1000 mg)

Mass of bone = 25 g

Putting values in above equation, we get:

$0.82g/cm^3=\frac{25g}{\text{Volume of bone}}\\\\\text{Volume of bone}=30.49cm^3$

Hence, the volume of bone for given sample is $30.49cm^3$

3 0

4 years ago