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andriy [413]
3 years ago
12

10. A sample of an unknown composition was tested in a laboratory. The sample could not be broken down by

Chemistry
2 answers:
damaskus [11]3 years ago
8 0

Answer:

it would be an element because its an element

Explanation:

vfiekz [6]3 years ago
7 0
It’s element it’s correct
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The diagram below shows a longitudinal wave at one instant in its motion. Each oval represents a particle acted on by the ener t
Anton [14]

Answer:

the first line

Explanation:

A rarefaction is a region in a longitudinal wave where the particles are furthest apart. ... The region where the medium is compressed is known as a compression and the region where the medium is spread out is known as a rarefaction.

use this picture as a reference:

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3 years ago
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You were rushing to get to school on time and dropped your breakfast food! Choose one atom in that food item and explain the sto
OLga [1]

Answer:

I am going to chose your apple on your breakfast plate. Somebody plantes the apple seed. The apple tree takes time to grow. Once the apples are ready to be picked they are picked. Then the apples are sorted and go off to different schools like your school. Which is where you pick the apple up and put it on your plate.

Explanation:

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3 years ago
Write a word equation for the extraction of tin from tin oxide using carbon
Ann [662]

SnO2 + 2C => Sn + 2CO

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Which of the following compounds would be expected to have the strongest ionic bonds?
Luba_88 [7]

Answer:

Compound that has the smallest ions with the greatest charge.

Explanation:

4 0
3 years ago
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A 232 mL cup of whole milk contains about 27 mg of cholesterol. Express the cholesterol concentration of the milk in kilograms p
son4ous [18]

Explanation:

Cholesterol concentration = 27 mg/ 232 mL

Change unit mg/ml to kg/m³

1 kg = 1000 g

1 g = 1000 mg

1 kg = 1000000 mg

1 kg = 10⁶ mg

10⁶ mg = 1 kg

1 mg = 10^-6 kg

m³ = 1000 L

1 L = 1000 mL

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m³ = 10⁶ mL

10⁶ mL = m³

1 mL = 10^-6 m³

Cholesterol concentration = 27 mg/ 232 mL

27 × 10^-6 kg/ 232 × 10^-6 m³

= 27/232 kg/m³

6 0
3 years ago
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