3 years ago

What is one example of a molecule that is not a compound?

Chemistry

2 answers:

Marrrta [24]3 years ago

4 0

Br2 or O2 or N2 or H2 or F2 or I2 etc.

podryga [215]3 years ago

4 0

Answer:

H2 is a molecule

Explanation:

Hydrogen gas H2 is a molecule not a compound because it is made up of similar elements.

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How many moles are present in 54.8 mL of mercury if the density of mercury is 13.6 g/mL?

lesya692 [45]

Answer:

3.72 mol Hg

General Formulas and Concepts:

Chemistry - Atomic Structure

Reading a Periodic Table
Using Dimensional Analysis
Density = Mass over Volume

Explanation:

Step 1: Define

D = 13.6 g/mL

54.8 mL Hg

Step 2: Identify Conversions

Molar Mass of Hg - 200.59 g/mol

Step 3: Find

13.6 g/mL = x g / 54.8 mL

x = 745.28 g Hg

Step 4: Convert

$745.28 \ g \ Hg(\frac{1 \ mol \ Hg}{200.59 \ g \ Hg} )$ = 3.71544 mol Hg

Step 5: Check

We are given 3 sig figs. Follow sig fig rules and round.

3.71544 mol Hg ≈ 3.72 mol Hg

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3 years ago

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mamaluj [8]

Answer: A)H+

Explanation:my teacher just told me

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4 years ago

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How many moles are in 8.23*10^23 molecules of Bi? Explain your Answer clearly

stich3 [128]

Answer:

1.367 moles of Bi

Explanation:

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by dividing $\frac{8.23*10^{23} }{6.02*10^{23}}$

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