Classify each reaction as either addition, decomposition, single-displacement, double-displacement, or combustion.
1. Ca(OH)2 → CaO + H2O

2. 3Mg + 2AlCl3 → 3MgCl2 + 2Al

3. 2H2 + 2O2 → 2H2O

Complete and balance the following chemical reactions.
4. ZnS + HBr →

5. MgCl2→

City a and city b had two different temperatures on a particular day. on that day, four times the temperature of city a was 8â° c more than 3 times the temperature of city b. the temperature of city a minus twice the temperature of city b was â’3â° c. what was the temperature of city a and city b on that day? city a was 5â° c, and city b was 4â° c. city a was 3â° c, and city b was â’1â° c. city a was 8â° c, and city b was â’3â° c. city a was 5â° c, and city b was â’5â° c.

Free answer. the treaty of versailles ended world war i, but some of the terms of the treaty contributed to the beginning of world war ii. which was one of the terms of the treaty? the answer would be "germany was forces to pay reparations to the allied countries.". i hope this .

How does concentration affect reaction rate