MATTER

Matter 1

100

Explain the difference between pure substance and mixture. Also, give one example each.

A pure substance is a type of matter that contains only 1 kind of atom or molecule.

        ex) gold

A mixture is made of two or more different substances that are not chemically combined.

ex) coins, salad

200

Difference between physical properties and chemical properties. Also the examples.

Physical Properties: Properties that can be observed about a substance without changing its identity.

ex) E.g. mass, volume, density, color, and state of matter

Chemical Properties: Properties that can be observed about a substance as it reacts with other substances.

E.g. flammability, corrosiveness, reactivity with acids

300

What is the difference between simple distillation, fractional distillation and chromatography?

SImple distillation: Distillation is useful for separating a liquid from a soluble solid in it.

The solution is poured into a flask and heated so the liquid evaporates.

The vapor enters a condenser, cools, and turns back to pure liquid.

Fractional distillation: Fractional distillation is useful for separating a mixture of 2+ liquids.

The mixture is slowly heated and each liquid evaporates at a different set boiling point.

Each vapor enters the condenser, cools, and the liquid is collected.

Chromatography: Chromatography is useful for separating a mixture of liquids with different solubilities, like inks.

A drop of the mixture is placed on a piece of chromatography paper and dipped in a solvent.

Each liquid is carried up the paper to a different height depending on its unique solubility.

400

 What is 6 main ways to separate mixture?

Sieving, Filtration, Distillation, Chromatography, Magnetism, Evaporation

500

Explain 3 characteristics of solution, colloids, and suspensions

Solution: 

- Homogeneous

- Small particle size: 0.01 – 1 nm

- Particles do not settle when left standing

- Does not scatter light; travels right through

- Cannot be separated by filtration

Colloids:

-  Homogeneous

- Medium particle size: 1- 1000 nm

- Particles do not settle when left standing

- May either scatter light or be opaque

- Cannot be separated by filtration

Suspensions: 

- Heterogeneous

- Large particle size: > 1000 nm

- Particles settle out when left standing

- May either scatter light or be opaque

- Can be separated by filtration

States of Matter 1

100

What is Matter?

Matter is anything that has mass and volume 

200

Is titanium compound or element? 

It’s a element :)

300

Is gelatin solution, colloid, or suspension?

Colloid 😀

400

Explain the meaning of Saturation. You need to include the key word we are looking for.

Saturated

L Solute can’t be dissolved any further. The Solution contains as much solute as the solvent is capable of dissolving. 

Key word: Dissolve

500

Can colloid scatter light? Rather it is yes or no, explain.

Colloids have medium and large sized particles, and it seems hard for light to go through. So the answer is obviously, Yes.

For instance, water doesn’t scatter light. Light goes through, easily. But milk is a colloid, and light can’t go through milk, that easily. 

Matter 2

100

What is matter made out of

atoms

200

How do you separate sand and gravel Sieving, Magnetism, or Filtration

Sieving

300

What is the difference between Simple Distillation and Fractional Distillation?

Simple distillation is used in the purification of seawater. And fractional distillation is used in the process of refining crude oil.

400

What is the difference between Physical Properties and Chemical Properties?

Chemical properties are connected to the chemical bonds of a substance. And physical properties do not have such a relationship.

500

What matter is William made out of

Element,Oxygen,Carbon, Hydrogen and Nitrogen

Matter 3

100

Is painting a paper physical or chemical change? Explain why. 

It is a physical change because even though we paint a paper, it is still a paper no matter how.

200

Is sublimation chemical change? 

No, changes of states are physical change.

300

What is the difference between Pure Substances and Mixtures?

Pure Substances: A matter made of one type of atom or molecule (Fixed composition)

Mixture: A matter made of two or more substances that are not chemically joined (Variable composition)

400

Name the TYPES of Pure Substances

Elements & Compounds are the 2 types of Pure Substances

500

Name the TYPES  of Mixtures. What are the differences and similarities?

Homogeneous & Heterogeneous. We can’t see different parts in homogeneous and we can see different parts easily in heterogeneous.

States of Matter 2

100

1. Matters behave differently in different temperatures. What does this create?

Four major states of matter, which is Gas, Liquid, Solid, and Plasma

200

What is the matter of slime?

Slime is between solid and liquid. In a complicated way, they are non-Newtonian fluids, according to google.

300

EVERY four major states of matter can change by changing the temperature. True or False.

False! Plasma can’t be changed by changing the temperature.

400

Name at least 5 “Changes of State.”

500

Gorilla said, “When a substance changes state, the type of atom or molecule, energy of the atoms and space between them changes!” Is this true?

No. It is False. When a substance changes state, the type of atom or molecule does NOT change.