WorksheetsFor G10 Compassion-Module 8 Assessment
Total questions: 10
Worksheet time: 5mins
Which of the following is a product?
A material acted upon
Material made in the reaction
Starting material
Process of reacting
Which of the following is not a word equation?
Flour + Water + Yeast + Bread
Sodium + Water → sodium hydroxide + hydrogen
drive down highway → don't get lost
silver nitrate + sodium chloride → silver chloride + sodium nitrate
Which is the proper form for a chemical equation?
reactants → products
products → reactants
reactants produce products
products are formed from reactants
Which is means a symbol Δ or delta means change in chemical reaction in a chemical equation?
change in volume
material is heated
change in rate
material is cooled
Which one is used to describe the physical state of a reactant or product?
w
p
l
r
In a chemical formula, the subscript stands for the number of _____.
atoms of an element in the compound
molecules in the reaction
products that will be formed
reactants needed for the reaction to proceed
Balancing equation relies on the law of _____.
conservation of energy
conservation of momentum
conservation of mass
conservation of heat
Which one technique is used in balancing chemical equations?
Change subscripts
Add extra material
change coefficients
only balance key reagents
Which one is NOT a type of chemical reaction?
combination
decomposition
subtraction
single replacement
Sr reacts with HCl in a ___ reaction.
decomposition
single replacement
halogen replacement
combination
