Identify the single replacement reaction(s) among the following reactions.
a) hcl + naoh nacl + h2o
b) ch4 + 3o2 co2 + 2h2o
c) 2agno3(aq) + zn(s) 2ag(s) + zn(no3)2(aq)

To save time, you can approximate the initial mass of the solid to the nearest ±1 g. for example, if you are asked to add 14.3 g of copper, add between 13 g and 15 g. which of the following sets include two samples with an equal density? which all that apply below 15.4 g gold and 18.7 g silver 15.2 g copper and 50.0 g copper 20.2 g silver and 20.2 g copper 11.2 g gold and 14.9 g gold

Write the chemical formula for a compound that is made of an element from group 1 and an element from group 17

Imagine a small synthetic vesicle made from pure phospholipids enclosing an interior lumen containing 1 mm glucose and 1 mm sodium chloride. if the vesicle is placed in pure water, which of the following happens faster? a. na+ diffuses out. b. cl– diffuses out. c. h2o diffuses in. d. glucose diffuses out. e. sodium chloride diffuses out.