Oxides of copper include CuO and Cu2O. You heat 1.51 g of a sample of one of these copper oxides in the absence of air and obtain 1.21 g of Cu. True or false: You must have had CuO.

How many moles of no2 will form when 3.3 moles of cu are reacted with excess hno3?

2. what two items do autotrophs take from the environment to produce their food? 3. what are the two items that are released during transpiration from leaves? 4. what are the two membranes of the system? a.what are the two stages of photosynthesis? what are the two parts of photosynthesis?

Can anyone answer these questions? ? i need it before 1: 00pm today