The reaction c + o2 co2 is an example

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Reference no: EM131003770

1.The reaction C + O₂ CO₂ is an example of a _______________reaction

Metal + halogen -> halide
b. Metal + oxygen -> metal oxide
c. Metal + sulphur -> sulphide
d. Non-metal + oxygen -> non-metal oxide
2.Rust is an example of which type of reaction?

Metal + halogen -> halide
b. Metal + oxygen -> metal oxide
c. Metal + sulphur -> sulphide
d. Non-metal + oxygen -> non-metal oxide
3.All halogens are-------

. electronegative
b. coefficient
c. diatomic
d. multivalent
4.In 4(NH₃)₂SO₄ there are a total of ________atoms.

a. 25
b. 37
c. 21
d. 52
5.It is OK to modify a chemical formula to balance a chemical equation.??

6.In a synthesis reaction, metals tend to _________ electrons and non-metals tend to ________ electrons.

a. lose; gain
b. gain; gain
c. gain; lose
d. lose; lose
7.In 4(NH₄)₂SO₄ there are a total of ________atoms.

a. 25
b. 35
c. 45
d. 60
8.The balanced equation for sulphur (VI) oxide + water --> sulphuric acid is

SO₄ + H₂O -> 2H₂SO₄
b. SO₃ + H₂O -> H₂SO₄
c. 2SO₃ + 4H₂O -> 4H₂SO₄
d. SO₃ + 2H₂O -> H₂SO₄
9.The formula for gallium iodide is

Reference no: EM131003770

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