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
Chemical Reactions
How many atoms of each element are found in Na2SO4?
Chemical ReactionsHow many atoms of each element are
found in Na2SO4?Na= 2S = 1O = 4
Chemical Reactions
How many atoms of each element are found in Ba(OH)2?
Chemical Reactions
How many atoms of each element are found in Ba(OH)2?
Ba = 2
O = 2
H = 2
Chemical Reactions
How many atoms of each element are found in (NH4)3PO4
Chemical Reactions
How many atoms of each element are found in (NH4)3PO4
N = 3
H= 12
P = 1
O = 4
Chemical Reactions
In a chemical reaction the substances on the left of the are called ____________ and the substances on the right are called __________ .
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 .
Chemical Reactions
In chemical reactions ________ speed up a reaction and _________ slow down a reaction.
Chemical Reactions
In chemical reactions catalysts speed up a reaction and inhibitors slow down a reaction.
Chemical Reactions
In a combustion reaction, oxygen (O2) reacts with another substance to produce _____ and ______.
Chemical Reactions
In a combustion reaction, oxygen (O2) reacts with another substance to produce carbon dioxide (CO2) and water (H2O)
Chemical Reactions
In a combustion reaction, oxygen (O2) reacts with another substance to produce carbon dioxide (CO2) and water (H2O)
Chemical Reactions
Balance the following reaction:
AlBr3 + K KBr + Al
Chemical Reactions
Balance the following reaction:
AlBr3 + 3K 3KBr + Al
Chemical Reactions
What type of reaction is this?
AlBr3 + 3K 3KBr + Al
Chemical Reactions
What type of reaction is this?
Al is displaced and Br binds to potassium: Single displacement
AlBr3 + 3K 3KBr + Al
Chemical Reactions
Balance the following reaction:
CH4 + O2 CO2 + H2O
Chemical Reactions
Balance the following reaction:
CH4 + 2O2 CO2 + 2H2O
Chemical Reactions
What type of reaction is the following reaction?
CH4 + 2O2 CO2 + 2H2O
Chemical Reactions
What type of reaction is the following reaction?
Oxygen gas reacts to produce carbon dioxide and water: combustion.
CH4 + 2O2 CO2 + 2H2O
Chemical Reactions
What type of reaction is the following reaction?
Bi + F2 BiF3
Chemical Reactions
What type of reaction is the following reaction?
Two substances form ONE, more complex substance. synthesis
Bi + F2 BiF3
Chemical Reactions
Balance the following reaction.
Bi + F2 BiF3
Chemical Reactions
Balance the following reaction.
2Bi + 3F2 2BiF3
Chemical Reactions
Balance the following reaction.
Al2O3 Al + O2
Chemical Reactions
Balance the following reaction.
2Al2O3 4Al + 3O2
Chemical Reactions
What type of reaction is this?
2Al2O3 4Al + 3O2
Chemical Reactions
What type of reaction is this?
A compound breaks down into two simpler compounds; decomposition
2Al2O3 4Al + 3O2
Chemical Reactions
What type of reaction is this?
A compound breaks down into two simpler compounds; decomposition
2Al2O3 4Al + 3O2
Chemical Reactions
What type of reaction is this?
FeO + PdF2 FeF2 + PdO
Chemical ReactionsWhat type of reaction is this?
Ions switch places. Double displacement
FeO + PdF2 FeF2 + PdO
Chemical Reactions
Balance the reaction?
FeO + PdF2 FeF2 + PdO
Chemical Reactions
Balance the reaction?
FeO + PdF2 FeF2 + PdO
It IS balanced
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 ________.
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.
Chemical Reactions
_____ ______ is the minimum amount of energy needed to start a chemical reaction.
Chemical Reactions
Activation energy is the minimum amount of energy needed to start a chemical reaction.
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
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
Chemical Reactions
What is the molar mass of one mole of Argon?
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
Chemical Reactions
What is the mass of 2 moles of carbon?
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
Chemical Reactions
What is the mass of 1 mole of sodium chloride (NaCl)?
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
Chemical Reactions
What is the mass of 1 mole of sodium chloride (CaCO3)?
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