3 years ago

DONT SEND LINKS OR DONT COMMENT IF YOU DONT KNOW THE ANSWER

Chemistry

2 answers:

melisa1 [442]3 years ago

7 0

Most likely to be found is called an Orbital.

Elena L [17]3 years ago

6 0

It something with an o, look it up on g00g le

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Answer the question please

OLEGan [10]

Answer:

Density=1.006 g/cm^3 .

Detailed explanation in screenshot attached below

Explanation:

5 0

2 years ago

A cubic object has a volume of 250 cm. What is its density if its mass is 5 points<br> 257.3 g?

ira [324]

Answer:

<h3>The answer is 1.03 g/cm³</h3>

Explanation:

The density of a substance can be found by using the formula

$density = \frac{mass}{volume} \\$

From the question

mass = 257.3 g

volume = 250 cm³

We have

$density = \frac{257.3}{250} \\ = 1.0292$

We have the final answer as

Hope this helps you

8 0

3 years ago

What is the molar mass of methane (CH4)? What is the molar mass of methane (CH4)?

Likurg_2 [28]

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2 years ago

What is the mass of 2.2x10^9 molecules of CO2? *

olga55 [171]

Answer: 9.68 x 10^10 grams.

Explanation:

Given that:

Mass of CO2 = ?

Number of molecules of CO2 = 2.2x10^9 molecules

Molar mass of CO2 = ? (let unknown value be Z)

For the molar mass of CO2: Atomic mass of Carbon = 12; Oxygen = 16

= 12 + (16 x 2)

= 12 + 32 = 44g/mol

Apply the formula:

Number of molecules = (Mass of CO2 in grams/Molar mass)

2.2x10^9 molecules = Z/44g/mol

Z = 2.2x10^9 molecules x 44g/mol

Z = 9.68 x 10^10g

Thus, the mass of 2.2x10^9 molecules of CO2 is 9.68 x 10^10 grams.

4 0

3 years ago

The dimensions of a rectangular solid are measured to be 1.27 cm, 1.3 cm, and 2.5 cm. The volume should be recorded as

meriva

Answer: 4.1 cm3

Explanation:

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3 years ago