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What coefficients are needed to balance: ____NaCl ---) _____Na + ___Cl2
2,2,1
coeffecients
Same number of each type of atom on each side of the equation
exothermic
16
8
balanced
16
The numbers that precede symbols and formulas in a chemical equation are called
2,2,1
coeffecients
Same number of each type of atom on each side of the equation
exothermic
16
8
balanced
16
How many atoms are present in 2NaC2H3O2?
2,2,1
coeffecients
Same number of each type of atom on each side of the equation
exothermic
16
8
balanced
16
How do you know if an equation is balanced?
2,2,1
coeffecients
Same number of each type of atom on each side of the equation
exothermic
16
8
balanced
16
What kind of chemical reaction has the same number of atoms of each element on both sides of the equation?
2,2,1
coeffecients
Same number of each type of atom on each side of the equation
exothermic
16
8
balanced
16
How many oxygen atoms are present in Mg3(PO4)2
2,2,1
coeffecients
Same number of each type of atom on each side of the equation
exothermic
16
8
balanced
16
If you have 16 oxygen atoms on the reactant side how many oxygen atoms will be present on the product side?
2,2,1
coeffecients
Same number of each type of atom on each side of the equation
exothermic
16
8
balanced
16
What type of chemical reaction gives off heat?
2,2,1
coeffecients
Same number of each type of atom on each side of the equation
exothermic
16
8
balanced
16
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