Chemists have learned how to make useful products that help make our life easier. For example, from crude oil we get

hydrocarbons are made from __________________________________.

Rubber and plastic are__________________________________.

What is the chemical name for salt?

Roasting a marshmallow is an example of ___________________________.

In carbon monoxide how many oxygen atoms are there?

In carbon dioxide, how many oxygen atoms are there?

What is the chemical formula for sugar?

What are the physical properties you can check?

What are the chemical properties you can check?

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