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Burka [1]
3 years ago
8

Which diagram shows what can happen when a small force affects the lithosphere without causing a break?

Chemistry
1 answer:
Delicious77 [7]3 years ago
6 0
The answer is answer choice b hope I could help!
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What is a substance so pure it cannot be broken down? *
Fiesta28 [93]

Answer:

Element

Explanation:

This is a pure substance which can't be split into simpler substances by chemical means

8 0
3 years ago
Nicotine, a component of tobacco, is composed of c, h, and n. a 4.725 −mg sample of nicotine was combusted, producing 12.818 mg
ehidna [41]

C = 12.818 mg CO2 (1 mmol CO2/44 mg CO2) (1 mmol C/1 mmol CO2) = 0.29 mmol

H = 3.675 mg of H2O (1 mmol H2O/18 mg H2O) (2 mmol H/1 mmol H2O) = 0.41 mmol

N = (4.725 mg – 0.29 * 12 – 0.41 * 1) * (1 mmol/14 mg) = 0.06 mmol

Divide everything by the smallest number:

C = 0.29/0.06 = 4.8 ~ 5

<span>H = 0.41/0.06 = 6.8 ~  7</span>

N = 0.06/0.06 = 1

 

Empirical formula is:

<span>C5H7N</span>

6 0
3 years ago
You are researching how your community protects Earth's resources.
AURORKA [14]

Answer:

D,C

Explanation:

6 0
4 years ago
Devices that allow you to do work in an easier way.​
IrinaVladis [17]

Answer:

The most notable of these are known as the "six simple machines": the wheel and axle, the lever, the inclined plane, the pulley, the screw, and the wedge, although the latter three are actually just extensions or combinations of the first three.

6 0
3 years ago
Read 2 more answers
PLEASE ANSWER, I WILL GIVE BRAINLIEST AND THANKS!
zheka24 [161]

Answer:

Mass  = 8 g

Explanation:

Given data:

Mass of MgO formed  = 20 g

Mass of oxygen needed = ?

Solution:

Chemical equation:

2Mg + O₂     →    2MgO

Number of moles of MgO:

Number of moles = mass/molar mass

Number of moles = 20 g/ 40 g/mol

Number of moles = 0.5 mol

Now we will compare the moles of MgO and O₂ from balance chemical equation:

                     MgO         :            O₂

                        2            :            1

                      0.5          :        1/2×0.5 = 0.25 mol

Mass of oxygen required:

Mass = number of moles × molar mass

Molar mass of O₂  is 32 g/mol

Mass = 0.25 mol × 32 g/mol

Mass = 8 g

4 0
4 years ago
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