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Igoryamba
3 years ago
14

5. The atomic number of an element is equal to:

Chemistry
2 answers:
Trava [24]3 years ago
4 0
The number of protons in the atom, A.
Degger [83]3 years ago
3 0
A. the number of protons in the atoms
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What is the purpose of sodium and chloride ions in the exoeruent?
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What is the exoeruent. Searched it up on google and only came up with two search results. None related to chemistry
5 0
3 years ago
Copper has a density of 8.96 g/cm3. If 75.0 g of copper is added to 50.0 mL of water in a graduated cylinder, to what volume rea
Tcecarenko [31]

Answer:

The answer to your question is    Final volume = 58.37 ml

Explanation:

Data

density = 8.96 g/cm³

mass = 75 g

volume of water = 50 ml

Process

1.- Calculate the volume of copper

  Density = mass / volume

Solve for volume

  Volume = mass / density

Substitution

  Volume = 75/8.96

Simplification

  Volume = 8.37cm³    or 8.37 cm³

2.- Calculate the new volume of water in the graduated cylinder

  Final volume = 50 + 8.37

  Final volume = 58.37 ml

3 0
3 years ago
If you were to travel from the surface to the center of Earth, the temperature would
nataly862011 [7]

Answer:

increase dramatically(a lot).

Explanation:

The core of the earth is way way way hotter than the surface.

5 0
3 years ago
What is the concentration of the barium hydroxide solution if 50.0 mL of a 0.425 M HNO3 solution is required to neutralize a 36.
fomenos

The molarity of Barium Hydroxide is 0.289 M.

<u>Explanation:</u>

We have to write the balanced equation as,

Ba(OH)₂ + 2 HNO₃ → Ba(NO₃)₂ + 2 H₂O

We need 2 moles of nitric acid to react with a mole of Barium hydroxide, so we can write the law of volumetric analysis as,

V1M1 = 2 V2M2

Here V1 and M1 are the volume and molarity of nitric acid

V2 and M2 are the volume and molarity of Barium hydroxide.

So the molarity of Ba(OH)₂, can be found as,

$ M2 = \frac{V1 \times M1}{2 \times V2}

   $M2 = \frac{50 \times 0.425 }{2 \times 36.8}

      = 0.289 M

5 0
4 years ago
Positive ions from a base and negative ions from an acid form a_____ .
lara31 [8.8K]
They will form a Salt
5 0
3 years ago
Read 2 more answers
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