RELATED SCIENCE CHAPTER 1

4. metallic

A(n) _________ bond is a bond in which atoms freely share their valence electrons among a group of like atoms.

1. covalent

2. hydrogen

3. ionic

4. metallic

?

A(n) ___ property can only be distinguished by affecting the substance's internal structure.

True

Compounds contain elements, but elements cannot contain compounds.

True

or

False

chemical bond

A(n) ___ is the mechanism by which atoms are held together to form molecules.

3. pure chemical element

Silver is an example of a ____________?

1.mixture

2. chemical compound

3. pure chemical element

4. blend

FALSE

A colloid is a mixture in which the solute particles do not dissolve but remain suspended throughout the solvent.

True

or

False

False

The cloud of particles surrounding a nucleus consists of protons.

True

or

False

2. weight

Specific ___ is calculated as density × acceleration of gravity.

1.mass

2.weight

3.gravity

4.pressure

homogeneous

An example of a(n) ___ mixture would be salt and water in saltwater.

2. 14.7

1 atmosphere of pressure (atm) is defined as ___ psi and the mean sea level atmospheric pressure on Earth.

1. 10

2. 14.7

3. 28.4

4. 32.6

2. melting

The ___ point is the temperature at which a substance changes from a solid to a liquid.

1. defrost

2. melting

3. evaporation

4. boiling

Matter

___ is any substance that has mass (weight) and occupies space by having volume.

2. group

A ___ is a column in the periodic table in which the elements in the group have similar physical or chemical properties.

1. class

2. group

3. category

4. period

4. element

A(n) ___ is the fundamental material of which all matter is composed.

1. molecule

2. compound

3. substance

4. element

specific gravity

___ is a dimensionless unit defined as the ratio of the density of a substance to the density of a reference substance, both at specified physical conditions.

2. Temperature

The ___ of a substance is an indirect measure of the average kinetic energy of its molecules.

1.pressure

2. temperature

3. weight

4. mass

3. mixture

A(n) _______ is the combination of substances in which their identities are retained and can be separated back into their original components.

1. molecule

2. chemical compound

3. mixture

4. element

True

A solution will have one phase of state as a solid, liquid, or gas.

True

or

False

Water

_______ is used as the basis of measurement for the specific gravity of solids and liquids.

3. Four

Science is divided into ___ major branches.

1. two

2. three

3. four

4. five

Hydrogen

example of a(n) ________ bond is H20 or water.

2. Applied

_______ science is the practical application of science.

1. Natural

2. Applied

3. Formal

4. Social

1. covalent

A(n) ______ bond is a chemical bond in which one or more pairs of electrons are shared between two atoms.

1. covalent

2. hydrogen

3. ionic

4. metallic

3. 4

The Earth's mass mainly consists of ______ elements.

1. 2

2. 3

3. 4

4. 6

3. Air

______ is used as the basis of measurement for the specific gravity of gases.

1. Nitrogen

2. Methane

3. Air

4.Hydrogen

Molecule

A(n) ______ is a group of two or more atoms that form the smallest identifiable unit of a substance that retains the composition and chemical properties of that substance.

False

The periodic table is divided into two main types of elements: metals and nonmetals.

True

or

False

Fluid

A(n) _____ is a substance that continually deforms or flows under an applied external force pushing against it.

True

The periodic table of chemical elements is a tabular array of the chemical elements organized by atomic number.

True

or

False

Solid

A(n) _____ will retain its shape and volume under normal temperatures and pressures.

False

The main difference between mass and weight is that the measurement of weight will increase as the mass moves above the gravitational body and will decrease as the object moves toward the center of the body.

True

or

False

2. Gas

A ___ has high compressibility.

1. solid

2. liquid

3. gas

4. plasma

3. Atom

A(n) _____ is composed of several different kinds of smaller particles arranged as a nucleus surrounded by a cloud of particles.

1. compound

2. molecule

3. atom

4. mixture

True

A substance's state of matter is dependent on the temperature and pressure at which the substance is observed.

True

or

False

True

An example of an ionic bond is sodium chloride (NaCl) or table salt.

True

or

False

4.Mass

______ does not change with the position, movement, or alteration of an object's shape unless material is added or taken away from the object.

1.Weight

2.Gravity

3.Density

4.Mass

True

A substance contains a specific chemical composition and characteristic properties.

True

or

False

2. The scientific method

___ includes observation techniques, experimentation, reasoning, and verification of conclusions through testing and assessment.

1.A theory

2.The scientific method

3.A hypothesis

4.A thesis

1. protons

An atomic number of an element is the number of ___ in the nucleus of an atom of that element.

1.protons

2.neutrons

3.electrons

4.molecules

4. W/v

The equation for density using weight is D = ___.

1.V/W

2.V × W

3.P/W

4.W/V

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