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lana66690 [7]
3 years ago
6

The atmosphere is a(n) _____. 1. element 2. compound 3. mixture

Chemistry
2 answers:
prohojiy [21]3 years ago
8 0
The atmosphere is a layer of gasses surrounding the planet. 
Our atmosphere is a mixture of elements like nitrogen and oxygen, and compounds like carbon dioxide and water. 
tensa zangetsu [6.8K]3 years ago
5 0
The atmosphere is a mixture of gasses.
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What are 10 facts about light?
Oksi-84 [34.3K]

Answer:

1. light is made up of energy

2. light travels in a straight line

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4. this is the speed when light is traveling in a vacuum and not obstructed by the atmosphere 5. traveling at the speed of light you could go around the earth seven and a half times in a second

6. light can move super fast super slow and not at all

7. we can use light to weigh Stars

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6 0
2 years ago
A chemical test has determined the concentration of a solution of an unknown substance to be 2.41 M. a 100.0 mL volume of the so
Oksana_A [137]

Answer : The molar mass of unknown substance is, 39.7 g/mol

Explanation : Given,

Mass of unknown substance = 9.56 g

Volume of solution = 100.0 mL

Molarity = 2.41 M

Molarity : It is defined as the number of moles of solute present in one liter of volume of solution.

Formula used :

\text{Molarity}=\frac{\text{Mass of unknown substance}\times 1000}{\text{Molar mass of unknown substance}\times \text{Volume of solution (in mL)}}

Now put all the given values in this formula, we get:

2.41M=\frac{9.56g\times 1000}{\text{Molar mass of unknown substance}\times 100.0mL}

\text{Molar mass of unknown substance}=39.7g/mol

Therefore, the molar mass of unknown substance is, 39.7 g/mol

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7 0
3 years ago
Read 2 more answers
At the county fair, Carrie and Sam climbed up on the carousel horses. Around and around they went; the horses also bobbed up and
grigory [225]
I believe sam's response is correct.
When human is riding a moving target with constant speed over a period of time, we tend to have  a visual acceleration perception due to our optical movement.
This make people such as Carrie believes that the carousel horses are accelerating while it actually stayed at constant pace.
3 0
3 years ago
What is the balanced form of the chemical equation shown below?
Svetradugi [14.3K]

Answer:

D

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Double Displacement reaction

Both sides are balanced with option D

3 0
3 years ago
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