Which of these elements exist as a liquid at normal Earth temperatures? Select all that apply.

bromine
sodium
mercury
oxygen

Covalent bonds are formed between metals and boiling points true or false

Ricardo notices that when he plays soccer in the rain, his ball does not seem to go as far after a kick. what is the best scientific question that ricardo could ask about this observation? is soccer better played in the rain or sun? how does rain affect the distance a soccer ball can travel? how does rain affect the speed of a soccer ball? is soccer affected by the rain?

What are some characteristics of a free enterprise economy?