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The substances to the left of the arrow in a chemical equation are called –
2HgO --- 2Hg + O2
coefficient
reactant
subscript
exothermic
H-2, S-1, O-4
subscript
product
___HgO --- ___Hg + O2
2HgO --- 2Hg + O2
coefficient
reactant
subscript
exothermic
H-2, S-1, O-4
subscript
product
The substances to the right of the arrow in a chemical equation are called-
2HgO --- 2Hg + O2
coefficient
reactant
subscript
exothermic
H-2, S-1, O-4
subscript
product
2Ca + O2 2CaO What is the 2 located behind oxygen (O) called?
2HgO --- 2Hg + O2
coefficient
reactant
subscript
exothermic
H-2, S-1, O-4
subscript
product
What tells you the number of atoms of each element in a compound?
2HgO --- 2Hg + O2
coefficient
reactant
subscript
exothermic
H-2, S-1, O-4
subscript
product
How many atoms of hydrogen (H), sulfur (S), and oxygen (O) are there in sulfuric acid (H2SO4)?
2HgO --- 2Hg + O2
coefficient
reactant
subscript
exothermic
H-2, S-1, O-4
subscript
product
2Ca + O2 2CaO What is the 2 located in front of calcium (Ca) called?
2HgO --- 2Hg + O2
coefficient
reactant
subscript
exothermic
H-2, S-1, O-4
subscript
product
What type of chemical reaction releases energy in the form of heat?
2HgO --- 2Hg + O2
coefficient
reactant
subscript
exothermic
H-2, S-1, O-4
subscript
product
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