What describes the current model of the atom? a)that electrons and protons move randomly around a nucleus.
b)electrons travel as waves in the electron cloud that surrounds the nucleus.
c)electrons orbit the nucleus like planets orbit the sun.
d)protons orbit the nucleus like planets orbit the sun.
my answer is c

Which of the following is always a reactant in a combustion reaction? oxygen nitrogen hydrogen carbon

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.

Identify a strong intermolecular force of attraction between an alcohol