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WorksheetsPhysical and Chemical Changes
Total questions: 10
Worksheet time: 8mins
What are the characteristic features of Physical Changes? (You may choose more than one option)
Physical changes can be either reversible or irreversible
Physical changes only effect solids
The heat may be either absorbed or evolved in a physical change
Physical changes are mostly temporary
Which of the following undergoes both physical and chemical changes?
Ice
Snow
Candle
Rubber
Unununium (Atomic number 111)
_____________________ is the symbolic representation of a chemical reaction
Chemical Change
Chemical Equation
Chemical's Formula
Chemistry language
Chemical Quotation
Who was the first to decompose copper carbonate?
Joseph Lucas Proust
Joseph Lopez Proust
Joseph Louise Proust
Joseph Jesus Proust
(a) is used to prevent rusting.
Which of the following is an example of Precipitation Reaction? (You may choose more than one option)
AgNo3 + NaCl → AgCl↓ + NaNO3
MgO3 + H3COO2 + 6AgO3 → O2G + Kl3Ag2
FeCl3 + 3NH4OH → Fe[OH]3↓ + 3NH4Cl
AgNO3 + MgO3 → AgO3 + MgNO3
Which type of chemical reaction is this? - Zn[s] + 2HCl[aq] → ZnCl2[aq] + H2[g]
Combination Reaction
Decomposition Reaction
Single Displacement Reaction
Double Displacement Reaction
Oxidation - Reduction Reaction
In (a) reaction, a compound breaks into two or more components due to the breaking of bonds
____________________ burns with dazzling flame
Magnesium ribbon
Zinc ribbon
Ammonium ribbon
Copper ribbon
Sulphur ribbon
Cations are negatively charged ions
TRUE
FALSE
