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Science 7 Activity 2 1.) What is matter ? 2.) How does a compound differ from mixture ? 3.) How does an element like oxygen and hydrogen dif

Science 7 Activity 2 1.) What is matter ? 2.) How does a compound differ from mixture ? 3.) How does an element like oxygen and hydrogen differ from compounds such as water ? 4.) What is electrolysis ? 5.) What are other ways that can separate components of compound? 6.) Where do you think these symbols like Fe in iron, Ag in silver , Hg in mercury and Na in sodium derived from ? 7.) Why are elements placed in the same column in periodic table? 8.) What is a nutrition fact ? 9.) What is an ingredient ? 10.) How do elements and compounds related to the minerals in the food we eat ?​

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Guest [Entry]

"Answer:

1. Matter is anything that occupies space and has mass. All physical objects are composed of matter, and an easily observed property of matter is its state or phase. The classical states of matter are solid, liquid and gas.

2. A compound is the substances that are formed by combining two are more chemical elements.

While a mixture is a substance made by mixing other substances together.

3. Element oxygen and hydrogen is a substance that cannot be broken down into any other substance.

Compound water is a substance composed of identical molecules consisting of atoms of two or more chemical elements

4.Electrolysis, process by which electric current is passed through a substance to effect a chemical change.

5. Distillation. When one compound is dissolved in another, or when two liquids are mixed together, the most commonly used method to separate them is distillation.

8. The Nutrition Facts label is required by the Food and Drug Administration (FDA) on most packaged foods and beverages. The Nutrition Facts label provides detailed information about a food's nutrient content, such as the amount of fat, sugar, sodium and fiber it has.

9. Ingredient-any of the foods or substances that are combined to make a particular dish.

pork is an important ingredient in many stir-fried dishes"