Chemistry
1. What does the law of conservation of
mass state?
2. Write any two properties of solid.
3. What happens when wood is burnt in
air.?
4. Show in the form of flowchart- kinetic
theory in context to three States of
matter.
5. Discuss how does mass of a substance
change during a physical change and
chemical change.
6. Give an example to show conservation
of mass.
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Answers
Answer:
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Explanation:
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Answer:
Describe the basic properties of each physical state of matter: solid, liquid, and gas
Define and give examples of atoms and molecules
Classify matter as an element, compound, homogeneous mixture, or heterogeneous mixture with regard to its physical state and composition
Distinguish between mass and weight
Apply the law of conservation of matter
Matter is defined as anything that occupies space and has mass, and it is all around us. Solids and liquids are more obviously matter: We can see that they take up space, and their weight tells us that they have mass. Gases are also matter; if gases did not take up space, a balloon would stay collapsed rather than inflate when filled with gas.
Solids, liquids, and gases are the three states of matter commonly found on earth (Figure 1). A solid is rigid and possesses a definite shape. A liquid flows and takes the shape of a container, except that it forms a flat or slightly curved upper surface when acted upon by gravity. (In zero gravity, liquids assume a spherical shape.) Both liquid and solid samples have volumes that are very nearly independent of pressure. A gas takes both the shape and volume of its container.
