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What number do you place to the left of the formula for a substance taking part in a reaction?
Wiki User
∙ 12y ago
Coefficient
Wiki User
∙ 12y ago
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Which one of the following is the number you place to the left of the formula a substance taking part in a reaction?
Coefficient, apex.
What is the number you place to the left of the formula for a substance taking part in a reaction?
CoefficientCoefficient
What represents the number of units of each substance taking part in a reaction?
synthesis
If a substance effervesces is there a chemical reaction taking place?
no because, you shouln`t be cheating on your homework.
What is the reaction when zinc reacts with sulphuric acid?
We can see bubbles of gas being released. The gas is a new substance, so this is evidence that a chemical reaction is taking place. the gas released during this reaction is hydrogen.
Which one of the following is the number you place to the left of the formula a substance taking part in a reaction?
Coefficient, apex.
What is the number you place to the left of the formula for a substance taking part in a reaction?
CoefficientCoefficient
What represents the number of units of each substance taking part in a reaction?
synthesis
What are the five clues that suggests a chemical reaction is taking place?
first when there's a physical change in the substance second there will be a solution or a formula to that substance third is, it involves temperature fourth is change in color of the substance fifth is the bubbling of another substance is yet an another clue that a chemical reaction has occured.
Can a substance be radioactive without a nuclear reaction taking place?
Yes, it is possible; disintegration is not considered a nuclear reaction.
When two or more substances combine in a chemical reaction to form another substance a blank reaction is taking place?
Reactants
If a substance effervesces is there a chemical reaction taking place?
no because, you shouln`t be cheating on your homework.
What term describes a more reactive element taking the place of a less reactive element?
The more reactive substance is known as a catalyst.
What is the reaction when zinc reacts with sulphuric acid?
We can see bubbles of gas being released. The gas is a new substance, so this is evidence that a chemical reaction is taking place. the gas released during this reaction is hydrogen.
Why is a phase change a physical change and NOT a chemical change?
Because no chemical reaction is taking place. It is the same substance, just in a different state of matter.
Substance that changes the rate of chemical reactions?
A Catalyst enhances and speeds a chemical reaction without actually taking part in the reaction.
What is the definition chemical change?
Chemical ChangesAs opposed to a physical change, chemical changes are present when the substance undergoes a chemical reaction and produces a new substance. A chemical change is a chemical reaction that will always take place for there to be a chemical change. Signs that a reaction is taking place: Formation of gases (bubbles), Color change, production of heat or light, and the formation of a solid. a change in composition and characteristics of matter.new substance maybe formed.original substance and form may be lost.new color and shapeExamplesFermentationPhotosynthesisRusting nailSpoiling milkDigesting food
