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andrey2020 [161]
3 years ago
12

Neeeeeed helpppppp will give brainiest

Chemistry
1 answer:
Artyom0805 [142]3 years ago
5 0

Answer:

I think it is c

Explanation:

When water turns into water vapor it goes into the air so it must be lighter

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Which pH value would a very acidic solution have?<br> a. 0<br> b. 6<br> c. 9<br> d. 14
Artist 52 [7]
The answer is A. 0 because 9 and 14 would be a pH of basic solutions because they are greater than 7; 0 and 6 are acidic because they are less than 7 but zero is smaller than 6 so it is the most acidic
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3 years ago
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What determines the shape and function of a protein?
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The function is determined by shape. The protein is determined by its primary structure which is the sequence of amino acids.
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3 years ago
A sample of SO2 gas occupies 45.6 L at 373 K and 3.45 atm. This sample contains how many moles of oxygen atoms?
lisov135 [29]

Answer:

10.28 mol

Explanation:

S + 2O = SO2

(atm x L) ÷ (0.0821 x K)

(3.45 x 45.6) ÷ (0.0821 x 373)

=5.13726

Then round it to significant figures

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5 0
4 years ago
Wat is significant figures
Sav [38]

<em>Answer:</em>

  •                   0.052301 km have 5 significant figure
  •                   400 cm have 1 significant figure
  •                   50.0 m  have 3 significant figure
  •                  4500.01 ml have 6 significant figure

<em>Explanation:</em>

According to rules of significant figure

0.052301 km have 5 significant figure:

  • Zero to the left of the first non zero digit not significant.
  • Zero between the non zero digits are significant.

<em>400 cm have 1 significant figure:</em>

  • Trailing zeros are not significant in numbers without decimal points.

<em>50.0 m  have 3 significant figure:</em>

  • Trailing zeros are significant in numbers when there is decimal points.

<em>4500.01 ml have 6 significant figure:</em>

  • Zero between the non zero digits are significant.
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4 years ago
What is the correct name for the ionic compound, MgCl2?
algol [13]

Answer:

magnesium chloride (no prefixes)

8 0
3 years ago
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