What mass of precipitate (in g) is formed when 20.5 mL of 0.500 M
Cu(NO), reacts with 29.0 mL of 0.500
M NaOH in the following chemical
reaction?
Cu(NO3)2(aq) + 2 NaOH(aq) →
Cu(OH)2(s) + 2 NaNO3(aq)

In an energy pyramid, which level has the most available energy?

When the chemicals iron sulfide (fes) and hydrochloric acid (hcl) are combined, bubbles appear from the mixture. 1. does the appearance of bubbles indicate a physical or chemical change? 2. why do the bubbles indicate this change? 3. what property is this?

Which statement correctly describes the phosphate ion, ? it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge on the phosphorus atom. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge on the phosphorus atom.