Which two particles make up most of the mass of a hydrogen-2 atom?

(1) electron and neutron

(2) electron and proton

(3) proton and neutron

(4) proton and positron

What is most likely true about ocean temperatures surrounding Australia, which is marked by the star in the following map? Map showing the Ocean Conveyor belt. A cold current runs west to east, south of Australia.

Where does chlorine form in an electrolytic cell during the electrolysis of molten NaCl? at the positive anode at the positive cathode at the negative cathode at the negative anode

What is the procedure for ranking plants

In a titration of HCl with NaOH, 100mL of the base was required to neutralize 20mL of 5.0 M HCl. What is the molarity of the NaOH?

What elements are required for a fire to happen?

What is the best name for the molecule below? a compound with 10 total carbons with a double bond and the rest single bonds.

What Word means the gradual change and build up of organisms in an enviroment

If you see the Sun is high in the sky, what can you say about the SUN as viewed from the opposite side of Earth at the same moment?

What element has 8 valence electrons

Which of the following best describes a metal? Brittle, shiny, and solid Brittle, dull, and low density Malleable, shiny, and able to conduct heat or electricity Malleable, dull, and solid, liquid, or gas at room temperature?