How many joules of heat are given off when 10 g of water cool from 100 C to 25 C?

Suppose that two objects exert a gravitational force of 22 N on one another. What would that force be if the mass of one of the objects were doubled? A. 11 N B. 22 N C. 44 N D. 88 N

A spaceship ceases to be matter when it is in space

6Li (s) + N2=2LiN the mass of N2 needed to react with. 536 moles of Li

You carefully weigh out 13.00 g of CaCO3 powder and add it to 52.65 g of HCl solution. You notice bubbles as a reaction takes place. You then weigh the resulting solution and find that it has a mass of 60.32 g.

Thermal decomposition of alkane is called pyrolysis or cracking?

A student went to the dentist and found out that he had a cavity. He always brushes his teeth twice a day, so he didn't understand how he got a cavity.

A force of 8,480 n is applied to a cart to accelerate it at a rate of 26.5 m/s2. what is the mass of the cart? 865 kg 320 kg 12.1 kg 3.12 kg

Within a group, which period, top or bottom is likely to contain atoms with the larger radius?

Write the equation for the fusion of two hydrogen-1 atoms.

23.9 km + 15 km Calculate this problem and report the answer with the correct number of significant figure