Louis was investigating physical and chemical changes in matter. Which of these changes that Louis found involves a chemical change in matter? Melting of ice
Grinding of rock
Evaporation of water
Rusting of iron

Which substance has non polar covalent bonds

Elements in group 2 are all called alkaline earth metals. what is most similar about the alkaline earth metals?

Read the claim. breakfast is an important meal. it jump starts the body’s process of using calories to break down food. appetite can decrease with age, but going too long without eating causes metabolism to slow down. current research shows that incorporating legumes such as lentils and chickpeas into meals boosts metabolism for twenty-four hours. who might benefit from this claim? people who have a fast metabolism stores that sell exercise equipment people who take vitamin supplements grocery stores that sell legumes