Which process represents a chemical change? (1) melting of ice (2) corrosion of copper (3) evaporation of water (4) crystallization of sugar

What kind of energy does fire have

Which of the following statements are TRUE? Group of answer choices Dynamic equilibrium indicates that the amount of reactants and products are equal.

A balloon contains 0.15 moles of co2 gas. how many molecules of co2 are in the balloon?

A compound has a molar mass of 86.0 g/mol and an empirical formula of C3H7 what is the molecular formula

How do you know if a compound is neutral?

How do you balance __Mg + __HCl - - > __MgCl2 + ___ H2

How many grams of methane, CH4 are produced from the complete reaction of 5.15 moles of carbon monoxide, CO

If you change the state of something, say, liquid to solid, is it a physical or chemical change?

What type of calorimeter would be best to use if you wanted to measure the heat that is released when gasoline is burned?

Tina has a sample of gaseous water at a temperature of 400 C and a pressure of 4 atm. If Tina increases the pressure to 200 atm, will the gaseous water liquefy? Why or why not?