1. Define chemistry and matter.
Chemistry is a type of science that deals with the identification of substances and their properties. Matter is anything that takes up space.
2. Define substance, element, and atom.
A substance is a kind of matter with uniform properties. An element is a substance that cannot be broken down further. An atom is the basic unit of a chemical element.
3. Define mixture, homogeneous, and heterogeneous.
A mixture is a substance made of mixed substances. A homogeneous is any substance that is not mixed with another substance. A heterogeneous is a substance with more than one substance mixed with it.
4. Explain the difference between mass and weight.
Mass is how much stuff something has. Weight is how heavy it is.
5. Explain the difference between a physical and a chemical property.
Physical is descriptive of how a substance feels, sounds, smells like etc. Chemical is how the substance behaves on a chemical level.
6. Explain the difference between a compound and a mixture.
A compound is mixed at molecular level. A mixture is two or more substances mixed together but not chemically bonded.
7. Describe the process of distillation.
Distillation is the process of taking a mixture of two liquids and seperating them. The process usually is that the substance is heated then cooled till the liquid is purified.
8. Provide an example of a gas-gas, liquid-liquid, and solid-solid mixture. Label each mixture as homogeneous or heterogeneous.
Air, homogeneous. A alcoholic drink, heterogeneous. Concrete, heterogeneous.
Chemistry is a type of science that deals with the identification of substances and their properties. Matter is anything that takes up space.
2. Define substance, element, and atom.
A substance is a kind of matter with uniform properties. An element is a substance that cannot be broken down further. An atom is the basic unit of a chemical element.
3. Define mixture, homogeneous, and heterogeneous.
A mixture is a substance made of mixed substances. A homogeneous is any substance that is not mixed with another substance. A heterogeneous is a substance with more than one substance mixed with it.
4. Explain the difference between mass and weight.
Mass is how much stuff something has. Weight is how heavy it is.
5. Explain the difference between a physical and a chemical property.
Physical is descriptive of how a substance feels, sounds, smells like etc. Chemical is how the substance behaves on a chemical level.
6. Explain the difference between a compound and a mixture.
A compound is mixed at molecular level. A mixture is two or more substances mixed together but not chemically bonded.
7. Describe the process of distillation.
Distillation is the process of taking a mixture of two liquids and seperating them. The process usually is that the substance is heated then cooled till the liquid is purified.
8. Provide an example of a gas-gas, liquid-liquid, and solid-solid mixture. Label each mixture as homogeneous or heterogeneous.
Air, homogeneous. A alcoholic drink, heterogeneous. Concrete, heterogeneous.