7. chemical reactions. chemical reactions how many atoms of each element are found in na 2 so 4 ?
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7. Chemical Reactions
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Chemical Reactions
How many atoms of each element are found in Na2SO4?
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Chemical ReactionsHow many atoms of each element are
found in Na2SO4?Na= 2S = 1O = 4
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Chemical Reactions
How many atoms of each element are found in Ba(OH)2?
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Chemical Reactions
How many atoms of each element are found in Ba(OH)2?
Ba = 2
O = 2
H = 2
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Chemical Reactions
How many atoms of each element are found in (NH4)3PO4
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Chemical Reactions
How many atoms of each element are found in (NH4)3PO4
N = 3
H= 12
P = 1
O = 4
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Chemical Reactions
In a chemical reaction the substances on the left of the are called ____________ and the substances on the right are called __________ .
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Chemical Reactions
In a chemical reaction the substances on the left of the are called reactants and the substances on the right are called products .
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Chemical Reactions
In chemical reactions ________ speed up a reaction and _________ slow down a reaction.
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Chemical Reactions
In chemical reactions catalysts speed up a reaction and inhibitors slow down a reaction.
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Chemical Reactions
In a combustion reaction, oxygen (O2) reacts with another substance to produce _____ and ______.
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Chemical Reactions
In a combustion reaction, oxygen (O2) reacts with another substance to produce carbon dioxide (CO2) and water (H2O)
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Chemical Reactions
In a combustion reaction, oxygen (O2) reacts with another substance to produce carbon dioxide (CO2) and water (H2O)
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Chemical Reactions
Balance the following reaction:
AlBr3 + K KBr + Al
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Chemical Reactions
Balance the following reaction:
AlBr3 + 3K 3KBr + Al
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Chemical Reactions
What type of reaction is this?
AlBr3 + 3K 3KBr + Al
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Chemical Reactions
What type of reaction is this?
Al is displaced and Br binds to potassium: Single displacement
AlBr3 + 3K 3KBr + Al
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Chemical Reactions
Balance the following reaction:
CH4 + O2 CO2 + H2O
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Chemical Reactions
Balance the following reaction:
CH4 + 2O2 CO2 + 2H2O
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Chemical Reactions
What type of reaction is the following reaction?
CH4 + 2O2 CO2 + 2H2O
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Chemical Reactions
What type of reaction is the following reaction?
Oxygen gas reacts to produce carbon dioxide and water: combustion.
CH4 + 2O2 CO2 + 2H2O
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Chemical Reactions
What type of reaction is the following reaction?
Bi + F2 BiF3
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Chemical Reactions
What type of reaction is the following reaction?
Two substances form ONE, more complex substance. synthesis
Bi + F2 BiF3
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Chemical Reactions
Balance the following reaction.
Bi + F2 BiF3
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Chemical Reactions
Balance the following reaction.
2Bi + 3F2 2BiF3
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Chemical Reactions
Balance the following reaction.
Al2O3 Al + O2
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Chemical Reactions
Balance the following reaction.
2Al2O3 4Al + 3O2
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Chemical Reactions
What type of reaction is this?
2Al2O3 4Al + 3O2
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Chemical Reactions
What type of reaction is this?
A compound breaks down into two simpler compounds; decomposition
2Al2O3 4Al + 3O2
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Chemical Reactions
What type of reaction is this?
A compound breaks down into two simpler compounds; decomposition
2Al2O3 4Al + 3O2
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Chemical Reactions
What type of reaction is this?
FeO + PdF2 FeF2 + PdO
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Chemical ReactionsWhat type of reaction is this?
Ions switch places. Double displacement
FeO + PdF2 FeF2 + PdO
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Chemical Reactions
Balance the reaction?
FeO + PdF2 FeF2 + PdO
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Chemical Reactions
Balance the reaction?
FeO + PdF2 FeF2 + PdO
It IS balanced
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Chemical Reactions
When there is a net release of energy during a chemical reaction (usually in the form of heat) it is __________, but if energy is absorbed and the temperature decreases it is ________.
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Chemical Reactions
When there is a net release of energy during a chemical reaction (usually in the form of heat) it is exothermic , but if energy is absorbed and the temperature decreases it is endothermic.
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Chemical Reactions
_____ ______ is the minimum amount of energy needed to start a chemical reaction.
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Chemical Reactions
Activation energy is the minimum amount of energy needed to start a chemical reaction.
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Chemical Reactions
Which of the following is NOT true of a mole?
a.contains 6.02 x 1023 particles of a substance
b.atomic number of an element is equal to its molar mass.
c.is represented by Avogadro’s number
d.mole ratios cannot be determined in a chemical reaction
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Chemical Reactions
Which of the following is NOT true of a mole?
a.contains 6.02 x 1023 particles of a substance
b.atomic number of an element is equal to its molar mass.
c.is represented by Avogadro’s number
d.mole ratios cannot be determined in a chemical reaction
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Chemical Reactions
What is the molar mass of one mole of Argon?
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Chemical Reactions
What is the molar mass of one mole of Argon?
Find argon (Ar) on the periodic table. The atomic mass equals one molar mass = 40 g/mol
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Chemical Reactions
What is the mass of 2 moles of carbon?
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Chemical Reactions
What is the mass of 2 moles of carbon?
Find carbon (C) on the periodic table. The atomic mass equals one molar mass = 12 g/mol
2 mol C x 12 g C / 1 mol C = 24 g C
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Chemical Reactions
What is the mass of 1 mole of sodium chloride (NaCl)?
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Chemical Reactions
What is the mass of 1 mole of sodium chloride (NaCl)?Element Atoms of
elementMolar mass Total mass for element
Na 1 X 23 = 23
Cl 1 X 35 = 35
Sum of masses 58 g/mol NaCl
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Chemical Reactions
What is the mass of 1 mole of sodium chloride (CaCO3)?
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Chemical Reactions
What is the mass of 1 mole of sodium chloride (CaCO3)?Element Atoms of
elementMolar mass Total mass for element
Ca 1 X 40 = 40
C 1 X 12 = 12
O 3 x 16 = 48
Sum of masses 100 g/mol CaCO3