Which of the following are building blocks of elements a. atoms b. protons c. ions 2. atoms are made up of a. air, water, soil b. protons electrons and neutrons c. proteins electrodes and neutrons quick

Melting and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.

What causes different colors to appear in the sky? the absorption of light by air molecules the reflection of light by bodies of water the greenhouse effect in earth's atmosphere the scattering and reflection of light by dust particles

Which proportionality applies to avogadro’s law?