The temperature of a piece of copper with a mass of 95.4 grams increases from 74°c to 99°c as the metal absorbs 849 J of energy

What is important to study for nios grade 12 chemistry? i have only one month left.

Acompound contains c, h, and o atoms. when 1.130 g of the compound is burned in oxygen, 1.064 g co2 and 0.3631 g h2o are produced. what is the empirical formula of this compound?

If a simple machine aduces the strength of a force, what must be increased? the speed of the input force the work the simple machine performs the size of the simple machine the distance over which the force is applied