Bim 1

Question 1

What is mass?

Answer 1

Is the measure of the amount of matter than an object has

Question 2

Why is it more complicated to measure liquid compared to solid?

Answer 2

Because the liquids can’t be placed directly on the scale

Question 3

How is fluid measured?

Answer 3

When a container is placed on a balance and it’s measured

Question 4

How can the volume of an object be measured?

Answer 4

With measuring cups, pipperties, test tubes and burettes the volume of a solid is length, width and height

Question 5

Why could the length be measured in meters and volume in cubic meters?

Answer 5

Because the multiplication of three (width, length and height

Question 6

What type of measurement scale can we use when we want to measure the length of a small body?

Answer 6

Centimeters, the unit of volume is the cubic centimeters

Question 7

How can we measure the volume of an irregular solid?

Answer 7

We Use a measuring instrument for liquids you put a certain volume of water, and drop it in, the volume of fluid that moves or increases in the measuring instrument is the volume of the irregular solid

Question 8

What does the kinetic molecular theory explain?

Answer 8

The change in the state of matter, and the other phenomena that occur in nature

Question 9

What are intensive properties?

Answer 9

Are related to the internal chemical structure of matter, don’t depend on the amount of material that and object or substance has.

Question 10

What is an example of one of the mosquees properties of matter?

Answer 10

If you cut a sheet of white paper in half, the pieces will be smaller but it will remain white, so we say that color is an intensive property

Question 11

Explain the basic concept of condensation

Answer 11

It’s the change of state of gas to liquid

Question 12

What is the melting point?

Answer 12

The temperature in which a solid substance is heated without changing its physical state, but when it reaches a certain temperature it will become a liquid

Question 13

What name is given to the temperature in which a liquid becomes a gas?

Answer 13

Boiling point

Question 14

How can we measure density?

Answer 14

Mass/ volume

Question 15

What is an extensive property?

Answer 15

Depends on the amount of matter that is being measured

• volume
• mass

Question 16

What is a substance?

Answer 16

A particular kind of matter with uniform properties

Question 17

What is matter?

Answer 17

Is a body that has inertia and occupies a physical space

Question 18

Cambio físico

Answer 18

Es cuando cambia su volumen, densidad, peso

Question 19

Cambio químico

Answer 19

Es cuando cambia su estructura completamente

Question 20

Qualitative properties

Answer 20

Properties that are observed and can emerald not be measured with a numerical result

• physical state
• color
• smell
• taste

Question 21

Quantitive properties

Answer 21

These are measured, they’re represented by numerical information, it’s the quantity or amount if something in the substance

• temperature
• density
• weight
• volume

Question 22

What are solutions?

Answer 22

Are necessarily homogeneous mixtures formed by a solvent, that is the component that is in a greater proportion. It’s also formed by a solute, that are in a lower proportion

Question 23

Unos of concentration

Answer 23

Physical and chemical

Question 24

Como le hago si quiero saber cómo el solute se disolvió en la mezcla?

Answer 24

Weight of solute/weight of the solution

Question 25

% de solute antes de mezclar comparado con el solution

Answer 25

Weight of solute/weight of disolvent (solvent)

Question 26

Methods of separation

Answer 26

Filtration, decanting, magnetic separation, crystallization, extracting using solvents and distillation

Question 27

Explain decanting

Answer 27

Is a separation method based on the density differences of two substances that are immiscible with each other

Question 28

Explain filtration

Answer 28

Is used to separate a heterogeneous mixture of a solid and a liquid

Question 29

Explain magnetic separation

Answer 29

Is a property that is used to separate heterogeneous mixtures containing them

Question 30

Explain crystallization

Answer 30

Is a technique used to obtain crystals from a solid dissolved in a liquid, it is only applied to a homogeneous mixtures, and the liquid solvent needs to evaporate

Question 31

Explain extraction using solvents

Answer 31

It separates components in a mixture using their solubility in different solvents

Question 32

Explain distillation

Answer 32

Is a technique used to separate homogeneous mixtures when both components are liquid