What are the types of atoms present in calcium hydroxide?

Chemical Composition and Atomic Structure

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Chemistry
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9th - 10th Grade
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Hard

Liam Anderson
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Calcium, Nitrogen, Hydrogen
Calcium, Oxygen, Hydrogen
Calcium, Oxygen, Helium
Carbon, Oxygen, Hydrogen
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does it mean when there is no subscript after an element in a chemical formula?
The element is present in two units
The element is present in one unit
The element is not present
The element is present in three units
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many oxygen atoms are there in one molecule of Ca(OH)2?
Two
Four
One
Three
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many hydrogen atoms are present in one molecule of calcium hydroxide?
Four
Three
Two
One
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the total number of atoms in a single molecule of Ca(OH)2?
Six
Three
Four
Five
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you calculate the number of oxygen atoms in one mole of Ca(OH)2?
Add Avogadro's number to the number of oxygen atoms
Divide the number of oxygen atoms by Avogadro's number
Subtract Avogadro's number from the number of oxygen atoms
Multiply the number of oxygen atoms by Avogadro's number
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is Avogadro's number approximately?
6.02 x 10^24
6.02 x 10^23
6.02 x 10^25
6.02 x 10^22
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