Neon and sodium are examples

Chemistry

1 answer:

kvasek [131]3 years ago

4 0

They are examples of elements because there's only one molecule in both

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Which best describes the field of chemistry?

qaws [65]

Answer:

Fundamentally, chemistry is the study of matter and change. The way that chemists study matter and change and the types of systems that are studied varies dramatically. Traditionally, chemistry has been broken into five main subdisciplines: Organic, Analytical, Physical, Inorganic, and Biochemistry.

hope this helps :)

5 0

3 years ago

Like Earth, the moon

dedylja [7]

Um all? i’m confused

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3 years ago

The sum of the atomic mass values of the atoms in a chemical formula is known as ____________.

nydimaria [60]

Answer:

I believe this is called the 'molar mass'

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A sample of marble has a volume of 6 cm and a density of 2.76 g/cm3. What is its mass?

Alexus [3.1K]

Answer:

16.56g

Explanation:

d=m/v

2.76=m/6

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3 years ago

Determine the total time that must elapse until only ¼ of an original sample of the radioisotope Rn-222 remains unchanged.

Arte-miy333 [17]

Answer:

7.6 days

Explanation:

Radon is a radioactive element and Radon-222 is it's most stable isotope. The half-life of Radon-222 has been found to be approximately 3.8 days.

Let, the initial amount of the Rn-222 = 1 = A

Final amount = $\frac{1}{4}$ = A'