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larisa86 [58]
3 years ago
8

An uncharged atom of gold has an atomic number of 79 and an atomic mass of 179. this atom has ________ protons, ______________ n

eutrons and ____________electrons
Chemistry
1 answer:
Vinvika [58]3 years ago
5 0
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(d) carbon monoxide
Irina18 [472]

Answer:

D. carbon monoxide

Hope this helps :)

6 0
3 years ago
Given the reaction below: N2O4 (g) ⇌ 2 NO2 (g)
Serjik [45]
N₂O₄ (g) ⇌ 2 NO₂ (g)

Kc = [ NO₂ ]² / [ N₂O₄ ]

4.2 =  [ 0.785 ] [ N₂O₄ ]

[ N₂O₄ ] = 4.2 / 0.785

[N₂O₄ ] = 5.350 M

hope this helps!

7 0
3 years ago
WORDS:
Brilliant_brown [7]

Answer:

Explanation:

What ink the

5 0
3 years ago
why is it necessary to adjust the height of the graduated cylinder when measuring the volume of co2 (g) produced? group of answe
Elanso [62]

3. The height of the graduated cylinder when measuring the volume of co2 (g) produced is adjusted to equalize the pressure in the graduated cylinder with the atmospheric pressure.

We discovered that when the water level within the graduated cylinder is higher than the water level outside, the gases inside the graduated cylinder have a lower pressure than the atmospheric pressure. It would then be possible to equalize pressure by changing the graduated cylinder's water level to match the water level outside.

Therefore last option or 3rd option is the correct choice.

For more questions like Cylinder click the link below:

brainly.com/question/14085192

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5 0
1 year ago
Drag each tile to the correct location.
Brrunno [24]

Answer:

1) chemical property

2) physical property

3) chemical property

4) physical property

Explanation:

Physical properties:

Physical properties are those properties which can be measured without changing the composition of mater. We can observe the object and tell its physical properties like its texture, physical appearance, color, melting point, boiling point, odor, density etc.

Chemical properties:

Chemical properties involve chemical reaction or we can say that change is happen in mater during chemical reaction and the properties, we measured  during this or as a result of this reaction is called chemical properties. Like flammability, toxicity, combustion, decomposition etc.

1) Water can split into hydrogen and oxygen

chemical property

2) water is liquid at room temperature

physical property

3) water react with certain metals

chemical property

4)The density of water is 1.0 g/cm³

physical property

6 0
3 years ago
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