Non-metals can form cations when combined with metals and anions when combined with other non-metals.

true

false

What is the earliest point in the universe that we can observe? why can’t we see back further than this?

A100-watt light bulb illuminates a solar cell. the electricity from the solar cell operates a water pump that delivers 1 watt of power. what is the efficiency of the system?

Acold front traveling southeast collided with a warm front traveling northwest the following map shows the weather on monday the day the two fronts collided which of these describes the weather forecast for mississippi on tuesday and wednesday