The blank number of a representative element indicates how many valence electrons that element has

An 84.84 g sample of steel is added to a 100-ml graduated cylinder with 45.0 ml of water. if the resulting water level is 55.5 ml, what is the volume of the steel?

Which cell copies its dna

Fungi and bacteria release nitrogen stored in dead tissue through a decomposition process called: a. nitrogen fixation. b. ammonification. c. denitrification. d. nitrification

Which human activity will most likely contribute to onzone later destruction

It takes 11.2 kj of energy to raise the temperature of 145 g of benzene from 22.0°c to 67.0°c. what is the specific heat of benzene? it takes 11.2 kj of energy to raise the temperature of 145 g of benzene from 22.0°c to 67.0°c.

Sample of 76 G of NaCl is dissolved to make 1 L of a solution what is the molarity of the solution

If there were no decomposers on Earth, what do you think would happen to organisms when they die? What effect would it have on Earth?

Oceans make the temperaturs of nearby land more extreme ... True or false

In a chemical reaction, atoms are created/rearranged. The atom are joined together in the same/different arrangements after the reaction. The total number of each type of atom is greater/less/The same after the reaction.

Is dry ice subliming, endothermic or exothermic?