Hello ! I will try to help you even if I am not sure that I will give you the right answers.
1.True or false snow's inlets at 100°© ? true i think.
2. Chemical properties of matter are properties that can be measured only when matter undergoes a change Physical properties are typically things you can detect with your senses. Reactivity is the ability of matter to combine chemically with other substances. true I think.
5. L'odeur et le point d'ébullition sont des types de propriétés chimiques. false i think.