Any time you have a reaction it is chemical. If a new substance is formed it is chemical.
Reactions that produce heat are exothermic.
Reactions when T goes down are endothermic.
Rust and magnetic. see
https://www.google.com/search?q=is+ability+to+rust+chemical+or+physical+property&ie=utf-8&oe=utf-8
Label the following changes as CHEMICAL or PHYSICAL change
1. Fat reacting with sodium hydroxide
2. Chemical A originally is buoyant in water; after it mixed with HCI, the new substance now sinks in water
Label the following reactions as exothermic or endothermic
1. Ammonium and calcium chloride mix, the temperature rises
2. Baking soda and methane are mixed, the temperature decreases
Label the following as PHYSICAL or Chemical Property
1. Ability to rust
2. Magnetic
Please, any help is appreciated! Thank you very much, hope you're having a good 2017.
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