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Q 1/26
Score 0
__CaO + __H₂O → __Ca(OH)₂
30
1, 1, 1
Q 2/26
Score 0
__Na + __F₂ → __NaF
30
2, 1, 2
26 questions
Q.
__CaO + __H₂O → __Ca(OH)₂
1
30 sec
Q.
__Na + __F₂ → __NaF
2
30 sec
Q.
__Na + __MgF₂ → __NaF + __Mg
3
30 sec
Q.
__BaCl₂ + __Na₂SO₄ → __NaCl + __BaSO₄
4
30 sec
Q.
__Sn + __HF → __SnF₂ + __H₂
5
30 sec
Q.
__Fe +__O₂ → __Fe₂O₃
6
30 sec
Q.
__CS₂ + __O₂ → __CO₂ + __SO₂
7
30 sec
Q.
__MgS + __O₂ → __MgO + __SO₂
8
30 sec
Q.
__CH₄ + __O₂ → __CO₂ + __H₂O
9
30 sec
Q.
__K + __I₂ → __KI
10
30 sec
Q.
__MgO + __SO₃ → __MgSO₄
11
30 sec
Q.
__C + __O₂ → __CO₂
12
30 sec
Q.
__Mg + __Cl₂ → __MgCl₂
13
30 sec
Q.
__Mg + __HCl → __MgCl₂ + __H₂
14
30 sec
Q.
A chemical substance that is present at the start of a chemical reaction.
15
30 sec
Q.
A chemical substance formed as a result of a chemical reaction
16
30 sec
Q.
A representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products
17
30 sec
Q.
A process during which chemical bonds between atoms are broken and new ones are formed. Producing one or more different substances.
18
30 sec
Q.
Makes, creates, produces; Arrow in chemical equation
19
30 sec
Q.
During any chemical reaction, the mass of the products is always equal to the mass of the reactants
20
30 sec
Q.
A number in front of a chemical formula in an equation that indicates how many molecules or atoms of each reactant and product are involved in a reaction.
21
30 sec
Q.
A number written slightly below and to the right of a chemical symbol that shows how many atoms of an element are in a compound.
