S3w7 Review homework

Last updated 6 months ago

15 questions

1

Required

6

1

Required

1

6.6.E

7.6.C

Required

1

Library

S3w7 Review homework

Last updated 6 months ago

15 questions

1

Draggable item		Corresponding Item

1

Sometimes you will see a number in front of a chemical formula. Like this -

that just tells me you have three of the same kind of molecule. If I have 3Fe_2O_3, how many oxygen atoms do I have total?

Required

6

Sort the following as either an ELEMENT or a COMPOUND

Oxygen =O_2
Water = H_2O
Gold = Au

1

Categorize the behaviors of different mixtures

particles in the liquid do not scatter light
particles in the liquid are too small to be filtered but large enough to scatter light
Particles in liquid won't settle, but the mixture is still heterogeneous
particles in the liquid are mixed at a molecular level. Single molecules or atoms are between molecules of the liquid

1

Categorize the types of mixtures

glue
OIl and vinegar salad dressing
sugar water
muddy water

1

Draggable item		Corresponding Item

Required

1

Which best describes a chemical change?

6.6.E

7.6.C

Required

1

Classify these actions as primarily physical change, chemical change.

Burning wood
Rusting iron
Dissolving sugar

1

During an ionic bond _____________ are gained and lost.

1

A molecule that has a partial positive end and a partial negative end because of unequal sharing of electrons.

1

When a molecule is polar , which is true?

1

quick review - match the type of bond to what is being bonded

Draggable item		Corresponding Item
hydrogen bonds		protons and neutrons
ionic bonds		bonds between atoms because they have different charge. these form some molecules
nuclear bond

1

What keeps two strands of amylose together?

1

What breaks those molecules apart?

1

What bonds them back together?

match the vocabulary with their definitions

Draggable item		Corresponding Item
Chemical symbols		an organized chart of all known elements, arranged by their properties and atomic structure
element		the smallest particle of an element that maintains all properties of that element
atom		two or more atoms bonded together
compound		A substance made of one type of molecule, where that molecule is made up of two or more different types of atoms
bond		forces that hold atoms together in molecules
molecule		a pure substance made up of only one type of atom
periodic table		the number of protons in an atom's nucleus, which determines what element it is
atomic number		the one to two letter abbreviation for an element

Sometimes you will see a number in front of a chemical formula. Like this -

that just tells me you have three of the same kind of molecule. If I have 3Fe_2O_3, how many oxygen atoms do I have total?

Sort the following as either an ELEMENT or a COMPOUND

Oxygen =O_2
Water = H_2O
Gold = Au
Sugar = C_{12}H_{22}O_{11}

ELEMENTS
COMPOUNDS

Categorize the behaviors of different mixtures

particles in the liquid do not scatter light
particles in the liquid are too small to be filtered but large enough to scatter light
Particles in liquid won't settle, but the mixture is still heterogeneous
particles in the liquid are mixed at a molecular level. Single molecules or atoms are between molecules of the liquid
particles in the liquid will settle over time
Particles in the liquid can be filtered out

Suspension
Solution
colloid

Categorize the types of mixtures

glue
OIl and vinegar salad dressing
sugar water
muddy water
salt water
milk

Suspension
Solution
colloid

match the vocab word to a definition

Draggable item		Corresponding Item
solute		a homogenous mixture where one substance is mixed with another at a molecular level. The mixture doesn't settle over time, it cannot be filtered out, and it does not scatter light.
Supersaturation		The fluid that will dissolve a substance (the water in salt water)
Solution		the substance being dissolved (the salt in salt water)
precipitate		how much solute is in the solution per unit of solvent
Saturated		when a solvent is holding the maximum amount of solute
unsaturated		When a solution has been heated, brought to saturation, and then allowed to cool without the solute coming out of solution.
concentration		solute that comes out of solution
Solvent		a solution that can dissolve more solute

Which best describes a chemical change?

Classify these actions as primarily physical change, chemical change.

Burning wood
Rusting iron
Dissolving sugar
Melting ice
cutting paper
baking a cake
glass blowing
fermenting grapes

Chemical Change
Physical Change

During an ionic bond _____________ are gained and lost.

A molecule that has a partial positive end and a partial negative end because of unequal sharing of electrons.

When a molecule is polar , which is true?

quick review - match the type of bond to what is being bonded

Draggable item		Corresponding Item
hydrogen bonds		protons and neutrons
ionic bonds		bonds between atoms because they have different charge. these form some molecules
nuclear bond		bonds between atoms because they are sharing electrons. these form some molecules
covalent bonds		bonds between different molecules, one frequently being water

What keeps two strands of amylose together?

What breaks those molecules apart?

What bonds them back together?

match the vocabulary with their definitions

Chemical symbols

an organized chart of all known elements, arranged by their properties and atomic structure

element

the smallest particle of an element that maintains all properties of that element

atom

two or more atoms bonded together

compound

A substance made of one type of molecule, where that molecule is made up of two or more different types of atoms

bond

forces that hold atoms together in molecules

molecule

a pure substance made up of only one type of atom

periodic table

the number of protons in an atom's nucleus, which determines what element it is

atomic number

the one to two letter abbreviation for an element

Sugar = C_{12}H_{22}O_{11}

ELEMENTS 

COMPOUNDS

particles in the liquid will settle over time

Particles in the liquid can be filtered out

Suspension

Solution

colloid

salt water

milk

Suspension

Solution

colloid

match the vocab word to a definition

solute

a homogenous mixture where one substance is mixed with another at a molecular level. The mixture doesn't settle over time, it cannot be filtered out, and it does not scatter light. 

Supersaturation

The fluid that will dissolve a substance (the water in salt water)

Solution

the substance being dissolved (the salt in salt water)

precipitate

how much solute is in the solution per unit of solvent

Saturated

when a solvent is holding the maximum amount of solute 

unsaturated 

When a solution has been heated, brought to saturation, and then allowed to cool without the solute coming out of solution.

concentration

solute that comes out of solution

Solvent

a solution that can dissolve more solute

Melting ice

cutting paper

baking a cake

glass blowing

fermenting grapes

Chemical Change

Physical Change

bonds between atoms because they are sharing electrons. these form some molecules

covalent bonds

bonds between different molecules, one frequently being water 

S3w7 Review homework

S3w7 Review homework

Sometimes you will see a number in front of a chemical formula. Like this - that just tells me you have three of the same kind of molecule. If I have 3Fe_2O_3, how many oxygen atoms do I have total?

Sort the following as either an ELEMENT or a COMPOUND

Categorize the behaviors of different mixtures

Categorize the types of mixtures

Which best describes a chemical change?

Classify these actions as primarily physical change, chemical change.

During an ionic bond _____________ are gained and lost.

A molecule that has a partial positive end and a partial negative end because of unequal sharing of electrons.

When a molecule is polar , which is true?

quick review - match the type of bond to what is being bonded

What keeps two strands of amylose together?

What breaks those molecules apart?

What bonds them back together?

match the vocabulary with their definitions

Sometimes you will see a number in front of a chemical formula. Like this - that just tells me you have three of the same kind of molecule. If I have 3Fe_2O_3, how many oxygen atoms do I have total?

Sort the following as either an ELEMENT or a COMPOUND

Categorize the behaviors of different mixtures

Categorize the types of mixtures

match the vocab word to a definition

Which best describes a chemical change?

Classify these actions as primarily physical change, chemical change.

During an ionic bond _____________ are gained and lost.

A molecule that has a partial positive end and a partial negative end because of unequal sharing of electrons.

When a molecule is polar , which is true?

quick review - match the type of bond to what is being bonded

What keeps two strands of amylose together?

What breaks those molecules apart?

What bonds them back together?

Sometimes you will see a number in front of a chemical formula. Like this -

that just tells me you have three of the same kind of molecule. If I have 3Fe_2O_3, how many oxygen atoms do I have total?

Sometimes you will see a number in front of a chemical formula. Like this -

that just tells me you have three of the same kind of molecule. If I have 3Fe_2O_3, how many oxygen atoms do I have total?