23What are 2 methods that scientists use to understand the history of the Earth. Why is it important for us to understand the history of the
Earth?

Which statement describes evidence of a chemical reaction? a) ice melting eliminate b) water boiling c) lighting a match d) grape juice freezing

Acompound contains c, h, and o atoms. when 1.130 g of the compound is burned in oxygen, 1.064 g co2 and 0.3631 g h2o are produced. what is the empirical formula of this compound?

What is the approximate vapor pressure when the gas condenses at 70 degrees celsius