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Marysya12 [62]
3 years ago
8

What elements makeup Mars' atmosphere?

Chemistry
1 answer:
Genrish500 [490]3 years ago
8 0

Answer:

Carbon dioxide or co^2

Explanation:

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The person is called a wildlife biologist.
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What does collide mean
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hit with force when moving.

"she collided with someone"

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crash (into)

come into collision (with)

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strike

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meet head-on

smash into

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cannon into

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"in his work, politics and metaphysics collide"

Explanation:

7 0
3 years ago
Three identical flasks contain three different gases at standard temperature and pressure. Flask A contains CH4, flask B contain
erastovalidia [21]

Answer:

FLASK B WHICH CONTAINS CO2 HAS THE HIGHEST NUMBER OF MOLECULES AS IT CONTAINS THE HIGHEST MOLECULAR MASS OF 44 G/MOL.

Explanation:

Flask A contains CH4

Flask B contaims CO2

Flask C contains N2

To know the flask containing the largest number of molecules, we find the molar mass of the molecules in the flask and the largest is the one with the highest number of the relative molecular mass.

Molecular Mass of CH4 (C = 12, H =1) = ( 12 + 1*4) g/mol

= 16 g/mol

Molecular mass of CO2 (C= 12, 0= 16) = (12 + 16*2) g/mol

= 12 + 32 g/mol

= 44 g/mol

Molecular mass of N2 (N=14) = 14 * 2 g/mol

= 28 g/mol

Hence, the flask with the largest number of molecules is the flask with the highest relative molecular mass. The highest molecular mass is 44 g/mol and it is for the gas CO2 in Flask B.

So therefore, Flask B has the highest number of molecules in it.

4 0
3 years ago
50 grams of sodium chloride is dissolved in a liter of water. identify the solute in this process. your answer
exis [7]
The solute is sodium chloride seeing as it is being dissolved. The solvent would be water.
6 0
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Your teacher created a 2 g/L salt-water solution (solution A) and a 2.5 g/L salt-water solution (solution B), both in 500 mL of
Alika [10]

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Solution B,

A concentrated solution is one that has a relatively large amount of dissolved solute. A dilute solution is one that has a relatively small amount of dissolved solute. However, these terms are relative, and we need to be able to express concentration in a more exact, quantitative manner.

3 0
3 years ago
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