If the total mass of the products in a reaction is 90 grams what was the total mass of the reactants

Match the specific enzyme to its class. A. oxidoreductase B. hydrolase C. transferase D. ligase E. lyase aminase

N the following reaction, how many liters of oxygen will react with 270 liters of ethene (C2H4) at STP? C2H4 (g) + 3O2 (g) 2CO2 (g) + 2H2O (g) The volume of one mole of gas at STP is 22.4 liters.

This is all the water; the liquid portion of the planet.

Dimensional analysis definition chemistry

What best describes how the behavior of rocks changes when they become deeply buried and placed under high levels of heat and pressure?

What is a neutral atoms oxidation number

Suppose 30 grams of NaCl are placed in 900 mL of water. What is the molarity of this solution?

After a particularly cold day outside you go home to make some tea. you heat the water in the mug so that botch are about 75 degrees celcious. the tea bag is only 30 degrees celcious and the room is around 26 degrees celcious.

For main-group elements using the older numbering system the group number on the periodic table corresponds to which characteristic of the elements of that group

In the vertical columns of the periodic table, as the atomic numbers increase: a. the number of electron shells increases. b. the ionization energies increase. c. the number of electrons in the valence shell increases. d.