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Worksheetschemistry gd 7
Total questions: 10
Worksheet time: 7mins
Name
Class
Date
1.
Using the following chemical reaction
Hydrogen + Oxygen --> water
Identify the reactant(s).
Hydrogen + Oxygen --> water
Identify the reactant(s).
a)
Hydrogen and Oxygen
b)
water
2.
What is a reactant?
a)
The starting substance
b)
The ending substance
3.
what is chemical equation
a)
the process of reaction in which one or more substance undergo
b)
chemical equation is a symbolic representation of chemical reaction
c)
chemical element or compond
4.
what is the formula of sodium hydroxide
(a)
5.
what is the formula of potassuim oxide
(a)
6.
An Atom consist of ............
a)
neuron and electon
b)
proton and electron
c)
proton and neutron
7.
A (a) is the smallest unit of matter
8.
Electron is ______________________charged partical
a)
postive
b)
negative
9.
Matter is made up of tiny particals called (a)
10.
What is a product?
a)
The starting substance
b)
The ending substance
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