Free points and first person gets a brainliest! :)

How many grams must be adde to 970g to make 1 and a half kg

The ratio pv to nrt is plotted against pressure for ch4 at 0°c and 200°c. why does the curve for 0°c drop below the horizontal line for an ideal gas whereas the curve for 200°c does not?

For the following geometric sequence, find the recursive formula. {-80, 20, -5, } i need : ')