Chemistry
Grade-10
Easy
Question
The big/regular sized numbers in a chemical formula:
(the RED numbers)
- Subscripts
- Coefficients
- Numbers
- Molecules
Hint:
The red numbers in a given reaction represent the number of each substance involved in the reaction.
The correct answer is: Coefficients
The red number in the given equation is the Coefficients
Related Questions to study
Chemistry
The small numbers in a chemical formula:
(the BLUE numbers)
The small numbers in a chemical formula:
(the BLUE numbers)
ChemistryGrade-10
Chemistry
"Solid zinc oxide is produced by combining zinc powder with oxygen gas." What is the correct skeleton equation for this reaction?
"Solid zinc oxide is produced by combining zinc powder with oxygen gas." What is the correct skeleton equation for this reaction?
ChemistryGrade-10
Chemistry
"Solid zinc oxide is produced by combining zinc powder with oxygen gas." What is/are the reactant(s)?
"Solid zinc oxide is produced by combining zinc powder with oxygen gas." What is/are the reactant(s)?
ChemistryGrade-10
Chemistry
Potassium iodide is a catalyst in a chemical reaction; where would this be placed when writing the chemical reaction?
Potassium iodide is a catalyst in a chemical reaction; where would this be placed when writing the chemical reaction?
ChemistryGrade-10
Chemistry
Balance the equation:
Si(OH)4+NaBr → SiBr4+NaOH
Balance the equation:
Si(OH)4+NaBr → SiBr4+NaOH
ChemistryGrade-10
Chemistry
Which is a balanced equation?
Which is a balanced equation?
ChemistryGrade-10
Chemistry
Which of the following shows the correct way to balance the chemical equation?
Fe + O2 → Fe2O3
Which of the following shows the correct way to balance the chemical equation?
Fe + O2 → Fe2O3
ChemistryGrade-10
Chemistry
Fill in the blanks with a coefficient:
_ HCl + H3PO4 → PCl5 +_ H2O
Fill in the blanks with a coefficient:
_ HCl + H3PO4 → PCl5 +_ H2O
ChemistryGrade-10
Chemistry
When balancing an equation...
When balancing an equation...
ChemistryGrade-10
Chemistry
A word equation...
A word equation...
ChemistryGrade-10
Chemistry
The law of conservation of mass states that....
The law of conservation of mass states that....
ChemistryGrade-10
Chemistry
A chemical reaction that releases energy by light or heat
A chemical reaction that releases energy by light or heat
ChemistryGrade-10
Chemistry
Number of C's in 2 molecules of Na2CO3 is:
Number of C's in 2 molecules of Na2CO3 is:
ChemistryGrade-10
Chemistry
Which of the following answers will balance the equation below?
__K + __Br2 → __KBr
Which of the following answers will balance the equation below?
__K + __Br2 → __KBr
ChemistryGrade-10
Chemistry
Which statement is not a description of a chemical reaction?
Which statement is not a description of a chemical reaction?
ChemistryGrade-10
