A boy reached his home by riding motorcycle within 5 minutes by travelling 8 km distance, them what is his average velocity?

Why is it reasonable to assume the specific heats of naoh and hcl solutions are the same as water?

Iron combines with oxygen to form rust. Given the chemical reaction, how many grams of 4Fe + 3O2 would produce 10 kg of rust? A. 7kg B. 10kg c. 30kg D. 70kg

A science teacher dissolved 50 grams of salt in 300 milliliters of water. he set the solution aside until all the water had evaporated. How many grams of salt should have been left in the glass container after the water had evaporated?

Which balanced equation represents a phase equilibrium? (1) H2 (g) + I2 (g) 2HI (g) (2) 2NO2 (g) N2O4 (g) (3) Cl2 (g) Cl2 (l) (4) 3O2 (g) 2O3 (g)

Why are cis and trans isomers of succinic acid impossible?

Does pressure decrease when a gas is removed

This is the ability of matter to change into a different substance.

How can I write ecology in my own words for a definition

The amount of time it takes for one-half of the original amount of an isotope to decay is known as its

If enough heat is added to a substance, electrons begin to separate from the atomic nuclei. Which process does this describe? A. A solid turning into a liquid B. A plasma turning into a gas C. A gas turning into a plasma D.