WorksheetsChemical Reactions
Total questions: 10
Worksheet time: 9mins
Which of the following are physical properties? Select ALL that are correct
Copper wiring is used when wiring a house.
Baking soda bubbles and produces a gas when vinegar is added.
A ballon is filled with 12 liters of helium.
Lead sinks in water, and wood floats in water.
Which of the following are chemical properties? Select ALL that are correct.
Butane boils at -1 F
Baking soda bubbles and produces a gas when vinegar is added.
Oil being carried in a tanker fills the cylindrical tanks.
Zinc metal dissolves and produces a gas when placed in hydrochloric acid.
Which of the following are neither chemical or physical properties?
Butane boils at -1 F
Baking soda bubbles and produces a gas when vinegar is added.
A nugget of gold weighs 24 ounces
Zinc metal dissolves and produces a gas when placed in hydrochloric acid.
Lab partners add bleach to an orange liquid. As the bleach mixes with the orange liquid, the orange mixture becomes clear. What should the lab partners conclude about the two liquids.
The bleach diluted orange liquid.
A chemical reaction occurred when the two liquids mixed.
Both liquids cooled when they were mixed
Filtering would make it possible to separate the liquids.
A scientists is conducting a chemical reaction in lab. One of the reactants weighs 15 g, and the other weighs 20 g. What is the weight of the products of this chemical reaction?
(a)
Which of the following is NOT an indicator that a physical change took place?
one substance dissolves in another substance
a color change
the substance is still the same, but the shape is different
the state of matter changed
The law of "Conservation of Mass" is exemplified in which of the following? Select all that apply
An object in motion stays in motion
The mass of the products equals the mass of the reactants
The amount matter in the universe is constantly changing.
Matter cannot be created or destroyed
Which of the following involves a change in chemical properties?
mixing baking soda and vinegar to make bubbles of carbon dioxide
melting a hunk of silver to make liquid silver
boiling water to make steam
stapling pieces of paper together
A balanced chemical equation is one in which:
the same molecules are present in the reactants and products
the densities of the products and reactants are equal.
the number of atoms of each element is equal in the reactants and products
the reactants and products have the same chemical properties
A pair of white Vans have been painted with shoe paint and markers. Which of the following are definitely true of the customized shoes?
Its physical properties have changed
Its chemical properties have changed
Both its physical and chemical properties have changed
None of its characteristics have changed
