Classwork 14A – Day 2
Purpose: To practice law of conservation of mass and mole ratio
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Chemistry, 05.04.2021 18:30 jamayeah02
Classwork 14A – Day 2
Purpose: To practice law of conservation of mass and mole ratio
For each chemical reaction below show that the law of conservation of mass is observed
3 BaF2 + 2 K3PO4 → 1 Ba3(PO4)2 + 6 KF
1 H2SO4 + 1 Mg(NO3)2 → 1 MgSO4 + 2 HNO3
1 WO3 + 3 H2 → W + 3 H2O
3 O2 + CS2 → CO2 + 2 SO2
ZnO + 2 HCl → ZnCl2 + H2O
What are ALL the possible mole ratios of the following equations – balance first then answer
2 H2O2 → 2 H2O + 1 O2
2 Na + 1 MgF2 → 2 NaF + 1 Mg
1 Cl2 + 2 KI → 2 KCl + 1 I2
2 Na + 2 HCl → 1 H2 + 2 NaCl
2 K + Cl2 → 2 KCl
Answers: 2
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Which of the following ocean acidification? are the most likely side effects of a ph less than 7.0 in the ocean b. more metal salts altering the ocean chemistry c. dissolution of the shells of marine organisms d. both a & b e. all of the above.
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Why is soap used to remove grease? a. its nonpolar end dissolves the grease. b. it makes the water bond with the grease. c. it chemically bonds with the grease. d. its polar end dissolves the grease. correct answer for apex - a, its nonpolar end dissolves the grease.
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