An impure sample of zinc (zn) is treated with an excess of sulfuric acid (h2so4) to form zinc sulfate (znso4) and molecular hydrogen (h2). (a) write a balanced equation for the reaction.

If 10.0 ml of the solution on the right are withdrawn from the 100 ml beaker and diluted again in a similar manner, what is the new concentration? m nacl

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.

Match the mixture with the substance// i really need on this guys (it’s a pic btw)