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4 years ago

How many atoms of each element are in the chemical formula Ca(OH)2?

Chemistry

2 answers:

Soloha48 [4]4 years ago

4 0

I think it's b

Ca(OH)2 means that Ca + (OH)2 which means that Ca + O2 + H2 right?

vladimir1956 [14]4 years ago

3 0

Answer: Option (b) is correct that is $Ca(OH)_{2}$ contains 1 calcium, 2 oxygen, and 2 hydrogen.

Explanation:

The chemical formula $Ca(OH)_{2}$ contains elements of calcium, oxygen, and hydrogen.

The number of atoms of each element in this chemical formula are as follows.

Number of calcium atom is 1.

Number of oxygen atoms is 2.

Number of hydrogen atoms is 2.

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3 years ago

How many kilojoules (kJ) in 373 joules (J)?

Nonamiya [84]

Answer: There are 0.373 kJ in 373 joules.

Explanation:

According to the standard conversion units 1 kJ is equal to 1000 J. This means that 1 J is equal to 0.001 kJ.

Hence, 373 joules is converted into kilojoules as follows.

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Thus, we can conclude that there are 0.373 kJ in 373 joules.

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3 years ago

Calculate the volume of dry CO2 produced at body temperature (37 ∘

ra1l [238]

Using the equation PV = nRT
Therefore; V = nRT / P
Need moles of glucose converted to moles of the product gas (CO2).

Molecular weight calculation:
C 6 X 12.01 = 72.06
H 12 X 1.01= 12.12
O 6 X 16.00 = 96.00
sum = 180.18
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Convert temp: 37 °C + 273.15 = 310.15 K
V= ((0.84915 mol)× (0.0821 L atm / mol K) (310.15 K))/0.980 atm
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7 0

3 years ago

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Explain the 2 main differences between ionic and covalent bonds and identify if the compound CaF2

Aloiza [94]

Answer:

yes. because look at the equation it will have an ionic bond

Explanation:

6 0

3 years ago

Use the chart to determine which type of bond is formed between potassium (K) and chlorine (Cl).

iris [78.8K]

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The inner shell electrons on potassium will merge with the outer shell of electrons of chlorine to make potassium chloride.

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4 years ago

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