Long Test No. 1 L1-L4

33問 • 2年前

GLAIZA

通報

問題一覧

a particle of matter that uniquely defines a chemical element

Atom

consists of a central nucleus that is usually surrounded by one or more electrons.

Atom

negatively charged.

electron

contains one or more relatively heavy particles known as

proton and neutron

positively charged

nucleus

group of atoms bonded together

Molecules

representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.

Molecules

atoms or molecules that carries an electric charge

Ions

very far apart; very free (chaotic) movement

gas

closely packed; restricted motion

solid

far apart; free movement

liquid

no change in composition takes place during the determination or measurement of these properties

Physical Properties

a change in composition occurs during the determination or measurement of these properties

Chemical Properties

change their value when the amount of matter or substance is changed.

Extensive Properties

do not change their value when the amount of matter is changed.

Intensive Properties

composed of only one component.

pure substances

composed of several components

mixtures

are pure substances that are made up of only one kind of atoms

elements

pure substances made up of two or more kinds of atoms

Compounds

has a uniform composition and exhibits the same properties in different parts of the mixture

homogeneous mixture

has a non-uniform composition and its properties vary in different parts of the mixture.

heterogeneous mixture

can be used as a separation method to separate components of a mixture with a dissolved solid in a liquid.

Evaporation

a separation technique used to separate components of a liquid mixture by a process of heating and cooling

Distillation

separation technique used to separate the components of a mixture containing an undissolved solid in a liquid

Filtration

can be used to separate mixtures of solids, or of liquids, or mixtures of solids and liquids combined, or in the case of gas chromatography, can separate mixtures of gases

Chromatography

used to separate a magnetic solid from a heterogeneous mixture

Magnetic Separation

used to separate a solid from a liquid in a heterogeneous mixture based on gravity.

Decantation

a collection of quantitative or numerical data that describes a property of an object or event

Measurement

being used in scientific measurement

International System (SI) of Measurement

measure of how close a measurement is to the correct or accepted value of the quantity being measured

Accuracy

measure of how close a series of measurements are to one another.

Precision

cause the result to be far from the true value

Systematic errors

cause the result to be different from each other

Random errors

QUIZ NO. 1

QUIZ NO. 1

QUIZ 2- L234

QUIZ 2- L234

Lesson5-8

Lesson5-8

Last

Last

ICT

ICT

PAGBASA

PAGBASA

Lesson 5 to Lesson 7

Lesson 5 to Lesson 7

21ST LESSON 1

21ST LESSON 1

LONG TEST

LONG TEST

QUIZ 1

QUIZ 1

QUIZ 2

QUIZ 2

QUIZ 2

QUIZ 2

COLORS

COLORS

Quiz 3

Quiz 3

Quiz 4

Quiz 4

問題一覧

a particle of matter that uniquely defines a chemical element

Atom

consists of a central nucleus that is usually surrounded by one or more electrons.

Atom

negatively charged.

electron

contains one or more relatively heavy particles known as

proton and neutron

positively charged

nucleus

group of atoms bonded together

Molecules

representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.

Molecules

atoms or molecules that carries an electric charge

Ions

very far apart; very free (chaotic) movement

gas

closely packed; restricted motion

solid

far apart; free movement

liquid

no change in composition takes place during the determination or measurement of these properties

Physical Properties

a change in composition occurs during the determination or measurement of these properties

Chemical Properties

change their value when the amount of matter or substance is changed.

Extensive Properties

do not change their value when the amount of matter is changed.

Intensive Properties

composed of only one component.

pure substances

composed of several components

mixtures

are pure substances that are made up of only one kind of atoms

elements

pure substances made up of two or more kinds of atoms

Compounds

has a uniform composition and exhibits the same properties in different parts of the mixture

homogeneous mixture

has a non-uniform composition and its properties vary in different parts of the mixture.

heterogeneous mixture

can be used as a separation method to separate components of a mixture with a dissolved solid in a liquid.

Evaporation

a separation technique used to separate components of a liquid mixture by a process of heating and cooling

Distillation

separation technique used to separate the components of a mixture containing an undissolved solid in a liquid

Filtration

can be used to separate mixtures of solids, or of liquids, or mixtures of solids and liquids combined, or in the case of gas chromatography, can separate mixtures of gases

Chromatography

used to separate a magnetic solid from a heterogeneous mixture

Magnetic Separation

used to separate a solid from a liquid in a heterogeneous mixture based on gravity.

Decantation

a collection of quantitative or numerical data that describes a property of an object or event

Measurement

being used in scientific measurement

International System (SI) of Measurement

measure of how close a measurement is to the correct or accepted value of the quantity being measured

Accuracy

measure of how close a series of measurements are to one another.

Precision

cause the result to be far from the true value

Systematic errors

cause the result to be different from each other

Random errors