Which of the following elements is one of the major components of living organisms?

A Sulfur

B Carbon

C Copper

D Silicon

How are minerals formed?

The nucleus of an atom of Cobalt-58 contains: 1. 27 protons and 31 neutrons 2. 27 protons and 32 neutrons 3. 59 protons and 60 neutrons 4.60 protons and 60 neutrons

A jar is filled with water, and the lid is closed tightly. The jar is kept at constant temperature. What happens at the surface of the water?

True or false climatologist use weather balloon stethoscope and satellite

The radius of a copper (Cu) atom is roughly 1.3 * 10-10 m. How many times can you divide evenly a 223.

What is the enthaply of the reaction?

Which color has a higher frequency, A. red light B. blue light

what is the volume of 0.98 mol oxygen (O2) gas at 275 K and a pressure of 2.0 atm? (the universal gas constant is 0.0821 L*atm/mol*K)

Which element is classified as an alkali metal? Rb Sr Zr Cl

Which statements about a neutral atom are correct? Check all that apply. The positively charged particles in the nucleus are positrons. The radius of the electron cloud is twice as large as the radius of the nucleus.