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Slide 1: 

Aluminum is an element because An element is a substance that is made entirely from one type of atom.

Slide 2: 

Water is a compound because it is made of more than one element which consists of (H2O)

Slide 3: 

Salt is a compound because it is made of more than one element which is (NaCl)

Slide 4: 

Milk is a mixture of water with various proteins, fats, and other substances.

Slide 5: 

Coke is a mixture of water, sugar, flavorings, and carbon dioxide gas.

Slide 6: 

The atmosphere is a mixture of gasses nitrogen, oxygen, carbon dioxide, small amounts of other gasses and possibly water vapor, water droplets (clouds), and solid particles (dust).

Slide 7: 

Salt and water are heterogeneous because you can separate them with distillation. (boil off the water, and catch it, condensed again into a liquid leaving the salt behind.)

Slide 8: 

orange juice with pulp in it you can purify it by putting a net to seperate the pulp

Slide 9: 

Kool aid is a chemical combination of two or more elements in definite proportions

Slide 10: 

Lotion is homogeneous because its made of different components such as oils,chemicals,etc.

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