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ankoles [38]
2 years ago
10

Explain why diffusion occurs more quickly in a gas than in a liquid ?

Chemistry
1 answer:
Evgen [1.6K]2 years ago
5 0

Answer:

hiii..... ISHA.........

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What is the formula weight (amu) of the molecule H2O? Use atomic masses of H and O as 1.008 amu and 16.00 amu respectively. Repo
vaieri [72.5K]

Answer:

Formula weight of H₂O molecule is  18.02 amu.

Explanation:

Given data:

Formula weight of H₂O = ?

Atomic mass of H = 1.008 amu

Atomic mass of O = 16.00 amu

Solution:

Formula weight:

"It is the sum of all the atomic weight of atoms present in given formula"

Formula weight of H₂O = 2×1.008 amu + 1×16.00 amu

Formula weight of H₂O = 18.02 amu

Thus, formula weight of H₂O molecule is  18.02 amu.

6 0
3 years ago
Which of the following elements has the largest electronegativity? A) Bismuth B) Nitrogen C) Potassium D) Arsenic​
algol [13]
Hey :)


The answer is B) Nitrogen, which has an electronegativity of 3.04

Hope this helps!
6 0
3 years ago
A solution of ammonia has a pH of 11.8. What is the concentration of OH– ions in the solution?
Basile [38]

Answer:

The answer is 2.20 M

Explanation:

This is because ammonia has a pH of 11.8 and if you take 14-11.8 it equals 2.2 so the answer is 2.20 M

6 0
2 years ago
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What’s some facts about atoms and elements
Ilya [14]

Answer:

There are alot of facts but here are a few

Explanation:

Atoms:

There are 3 parts to an atom

Protons have a positive electrical charge

Atoms are the smallest particles to make an element

Elements:

Hydrogen is the most common element in the world

An element is a substance that is made entirely from one type of atom.

An element is a substance that cannot be broken down into any other substance.

6 0
3 years ago
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Without a catalyst, a reaction may require very high temperatures in order to occur. How does a catalyst speed a reaction at low
Wittaler [7]

It lowers the amount of energy required to break chemical bonds.

7 0
3 years ago
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