What does the law of conservation of mass state?

AQA GCSE CHEM Quantitative Chemistry MCQs FT

Flashcard
•
Chemistry
•
9th - 10th Grade
•
Hard
Laura McGuinness-Brown
FREE Resource
Student preview

26 questions
Show all answers
1.
FLASHCARD QUESTION
Front
Back
no atoms are lost or made during a chemical reaction so the mass of the products equals the mass of the reactants
2.
FLASHCARD QUESTION
Front
How many different elements are there in calcium carbonate (CaCO3)?
Back
3
3.
FLASHCARD QUESTION
Front
Potassium nitrate has the chemical formula KNO3. What is the total number of atoms in potassium nitrate?
Back
5
4.
FLASHCARD QUESTION
Front
Correctly balanced symbol equation for the reaction between magnesium and oxygen?
Back
2Mg + O2 ==> 2MgO
5.
FLASHCARD QUESTION
Front
Magnesium + oxygen ==> magnesium oxide 3g of magnesium completely reacts with 2g of oxygen. What is the mass of magnesium oxide formed?
Back
6g
6.
FLASHCARD QUESTION
Front
What happens to the mass inside an unsealed test tube when copper carbonate is heated and decomposes into copper oxide and carbon dioxide?
Back
decrease
7.
FLASHCARD QUESTION
Front
What is the relative formula mass of sodium hydroxide (NaOH)? Relative atomic masses (Ar): Na = 23, O = 16, H = 1
Back
37
Create a free account and access millions of resources
Similar Resources on Wayground
19 questions
Isotopes and percent abundance

Flashcard
•
9th - 11th Grade
21 questions
Isotopes

Flashcard
•
9th - 11th Grade
21 questions
Isotopes and Ions

Flashcard
•
9th Grade
15 questions
Atomic Structure Flashcard

Flashcard
•
10th Grade
15 questions
Molar Mass & Percent Composition

Flashcard
•
10th Grade
20 questions
Atomic structure

Flashcard
•
10th Grade
17 questions
OL Atomic Theory Review 2021

Flashcard
•
10th Grade
20 questions
Periodic Trends Practice

Flashcard
•
10th - 11th Grade
Popular Resources on Wayground
25 questions
Equations of Circles

Quiz
•
10th - 11th Grade
30 questions
Week 5 Memory Builder 1 (Multiplication and Division Facts)

Quiz
•
9th Grade
33 questions
Unit 3 Summative - Summer School: Immune System

Quiz
•
10th Grade
10 questions
Writing and Identifying Ratios Practice

Quiz
•
5th - 6th Grade
36 questions
Prime and Composite Numbers

Quiz
•
5th Grade
14 questions
Exterior and Interior angles of Polygons

Quiz
•
8th Grade
37 questions
Camp Re-cap Week 1 (no regression)

Quiz
•
9th - 12th Grade
46 questions
Biology Semester 1 Review

Quiz
•
10th Grade
Discover more resources for Chemistry
25 questions
Equations of Circles

Quiz
•
10th - 11th Grade
30 questions
Week 5 Memory Builder 1 (Multiplication and Division Facts)

Quiz
•
9th Grade
33 questions
Unit 3 Summative - Summer School: Immune System

Quiz
•
10th Grade
37 questions
Camp Re-cap Week 1 (no regression)

Quiz
•
9th - 12th Grade
46 questions
Biology Semester 1 Review

Quiz
•
10th Grade