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melamori03 [73]
3 years ago
8

Which elements have fewer than four dots in their electron dot diagrams

Chemistry
2 answers:
Alex787 [66]3 years ago
6 0
Hydrogen, helium, lithium,
boyakko [2]3 years ago
6 0

Answer:

Sorry folks its B and D

Explanation:

Correct answer is Strontium (Sr) and Gallium (Ga

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2) Convert 2.65*10^ ^ 25 atoms of Chlorine to moles of CI
Irina18 [472]

Answer:

22 mol

Explanation:

Given data:

Number of atoms of Cl = 2.65×10²⁵ atom

Number of moles of Cl = ?

Solution:

The given problem will solve by using Avogadro number.

It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.  The number 6.022 × 10²³ is called Avogadro number.

1 mole = 6.022 × 10²³ atoms

2.65×10²⁵ atom × 1 mol / 6.022 × 10²³ atoms

0.44×10² mol

22 mol

7 0
3 years ago
What are the number of protons, electrons, and neutrons in Potassium
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3 years ago
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A type of reaction that occurs when oxygen combines with iron to form rust
fiasKO [112]
Oxidation
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How many grams of oxygen are required to react completely with 3.6L of hydrogen at
Paladinen [302]
the number of moles of oxygen required are 0.08 mol. The volume of oxygen that is required to react can be calculated by the formula shown below. Substitute the values in equation (II). Hence, the volume of oxygen required to react with 3.6 L hydrogen is 1.8L . I hope this helps if not I’m sorry
7 0
3 years ago
What is the h+ of a solution with a ph of 5.6
7nadin3 [17]
Just have to do antilog

[H+]= 10^-5.6
6 0
3 years ago
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