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ella [17]
3 years ago
7

H20 (water) indicates there are _____.

Chemistry
1 answer:
romanna [79]3 years ago
8 0

H20 (water) indicates there are:

1) two hydrogen atoms and one oxygen atom in this chemical formula

2) water is an acid

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The atmospheric pressure on the surface of Venus is 6.84X10^4. Calculate the atmospheric pressure in atm and torr. Round each of
quester [9]

Answer:

0.675 atm

513 Torr

Explanation:

Given is that, the atmospheric pressure on the surface of Venus is

6.84 X 10⁴ Pa.

1 atm (atmospheric pressure) is equal to 101325 pascal (Pa).

To convert divide the pressure value by 101325.

Pressure in atm = \frac{6.84 \times 10^{4} }{101325}

= 0.675055 atm

Rounding it off to 3 significant digits: 0.675 atm

Now,  one Torr is 133.322 Pa. For conversion, divide the pressure value by 133.322.

Pressure in Torr = \frac{6.84 \times 10^{4} }{133.322}

=513.04219 Torr

Rounding it off to 3 significant digits: 513 Torr

5 0
3 years ago
Can someone please explain this i will give brainliest
IrinaVladis [17]
1) 2
2) 2
3) there are 2 atoms of hydrogen and 1 atom of oxygen, altogether is 3
4) subscript tells how many atoms of each element are present in the molecule
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It is:
2 H2 + O2 -> 2 H2O
4 0
3 years ago
Which of the following would not be considered matter?<br><br> plants<br> cheese<br> light<br> blood
belka [17]

Answer:

Light

Explanation:

Plant is a thing so it has matter

Cheese is food so it has matter

Blood is a liquid so it has matter

3 0
3 years ago
What type of energy is present in wound-up rubber band in a toy airplane?
andriy [413]
It is elastic potential energy
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Global winds, coriolis effect and <span>continental deflections. Hope this helps!</span>
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