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Vladimir [108]
3 years ago
5

How many electrons would an uncharged atom of nitrogen have

Chemistry
1 answer:
dybincka [34]3 years ago
3 0
The atomic number represents the number of protons in an atom's nucleus. In an uncharged atom, the number of protons is always equal to the number of electrons. For example, carbon atoms include six protons and six electrons, so carbon's atomic number is 6.
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Which is bigger 145 m or 145 km
Citrus2011 [14]
145 km i think is bigger
8 0
3 years ago
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The movement of molecules across a membrane from an area of high concentration to one of low concentration is best described as:
mestny [16]

Answer:

Difussion

Explanation:

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This movement of particles will be modified according to the length or area of ​​the pipe and the concentration of solute. The greater the difference in solute concentration along the tube, the greater the diffusion

6 0
3 years ago
Styrofoam has a density of 0.075 g/mL. What is the volume of 21.80 g of Styrofoam?
LekaFEV [45]

The answer is 290.66 mL

Explanation:

The density of any substance including styrofoam is determined by two main factors: mass (atoms in the substance) and volume (space occupied). Moreover, the volume or mass of the substance can be calculated by using the density as these variables are related. Below I show the process:

density = mass / volume

mass = density x volume

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volume = 21.80 g / 0.075 g/mL

volume = 290.66 mL

4 0
3 years ago
Mr. Swerdlow wrote a chemical equation on the board and asked his class what should be changed to make it correct. He wrote:
Misha Larkins [42]

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glucose + oxygen → carbon dioxide + water + energy.

This reaction is exothermic (energy is released).

6 0
3 years ago
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34kurt

Answer:

H

Explanation:

This will give it the perfect balance to roll straight and steady.

7 0
2 years ago
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