the following questions
Define matter. What is composed of?
2 Why are to known as the building blocks of matter?
3 Why do solids have a fixed shape and site?
Why can liquids flow easily
5. What is solubility
& Why is water known as the universal solvent?
Give examples of solids, quos and saves that are soluble in water,
What happens when you shake and open a bottle of soda?
What are the two types of changes?
so Define a physical change and ove examples
11. What is a chemical change? Explain with an example,
All in the blanks
Answers
Answer:
Anything which occupies space and has mass is called matter. Matter is composed of tiny particles called molecules.
2) atoms
3) Solids have a fixed shape and a fixed size. The particles are very close together and held in place by strong forces (bonds). Their particles cannot move around, but they do vibrate. Because the particles cannot move around, a solid has a fixed shape.
Liquids flow because the intermolecular forces between molecules are weak enough to allow the molecules to move around relative to one another. ... In liquids, the intermolecular forces can shift between molecules and allow them to move past one another and flow.
5) Solubility is defined as the maximum amount of a substance that will dissolve in a given amount of solvent at a specified temperature.
water is an universal solvent
some examples of solids that can dissolve in water are sugar , salt....
If you shake a can of soda, you end up with tiny bubbles of carbon dioxide gas that stick to the inside surface of the can. ... If you open the can, the bubbles expand a lot and they push the soda right out with them, causing a "soda explosion."
two types of changes are
I) Physical change : Physical changes are changes affecting the form of a chemical substance, but not its chemical composition. ... Examples of physical properties include melting, transition to a gas, change of strength, change of durability, changes to crystal form, textural change, shape, size, color, volume and density.
II) Chemical change : A chemical change is a change of materials into another, new materials with different properties and one or more than one new substances are formed. It results when a substance combines with another to form a new substance.