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Anuta_ua [19.1K]
3 years ago
14

The chemical formula tells the types of atoms and how many of each are contained in a compound. Please select the best answer fr

om the choices provided
a. True
b. False
Chemistry
1 answer:
ANEK [815]3 years ago
5 0
A chemical formula can tell one the consisting atoms, the types of atoms and which they belong.Also through mole ratios, the number of atoms contained in a compound can also be identified through the chemical formula. In this problem, the answer is a. True.
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An archaeologist discovered some charcoal at an excavation site. He sent the samples to a lab for C-14 dating, knowing that the
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Read the scenario and then answer the question.
Dvinal [7]

Elias could be standing on the transform boundary.

Answer: Option 1.

<u>Explanation:</u>

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6 0
3 years ago
What is the mass of 2.542 × 1026 atoms of F?
stiks02 [169]

Answer:

7.98 × 10^3grams.

Explanation:

To find the mass of fluorine in the number of atoms provided, we first divide the number of atoms by Avagadros number (6.02 × 10^23atoms) to get the number of moles in the fluorine atom. That is;

number of moles (n) = number of atoms (nA) ÷ 6.02 × 10^23 atoms

n = 2.542 × 10^26 ÷ 6.02 × 10^23

n = 0.42 × 10^ (26-23)

n = 0.42 × 10^3

n = 4.2 × 10^2moles

Using mole = mass ÷ molar mass

Molar/atomic mass of fluorine (F) = 19g/mol

mass = molar mass × mole

Mass (g) = 19 × 4.2 × 10^2

Mass = 79.8 × 10^2

Mass = 7.98 × 10^3grams.

8 0
3 years ago
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