Chapter 1 Flashcards

1
Q

What is the sentence for remembering the first 10 elements?

A

Hard Hearted Little Beggar Boys Catch Newts Or Fishes Near Naples

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is the sentence for remembering the second 10 elements?

A

Magnificent Albert Sings Pop Songs Clearly Around Kitchen Cabinets

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is the law of conservation of mass?

A

The total mass of products formed in a reaction is equal to the total mass of the reactants

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is distillation?

A

It separates liquid (solvent) from a soluble solid (solute)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is fractional distillation?

A

It separates miscible liquids (liquids that dissolve in each other)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What do the molecules need for fractional distillation to work?

A

Different boiling points

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is the difference between chemical and physical separate processes?

A

Chemical- irreversible, changes in light, temp

Physical- reversible

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is an element?

A

A substance made of the same atom

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is a compound?

A

Molecules made of different atoms

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is a mixture?

A

A substance made of atoms and molecules

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Relative atomic mass is?

A

No. of protons + no. of neutrons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Atomic number is?

A

The no. of protons

Theoretically electrons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

You never change ___ when balancing an equation?

A

The neutrons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

How is a compound different to a molecule?

A

Compound- molecules made of different or the same types of atom

Molecule- made of the same type of atom chemically bonded together

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Paper chromatography is used to?

A

Separate miscible liquids

Colours in a dye

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

The 4 state symbols are?

A

s- solid
l- liquid
g- gas
aq- aqueous

17
Q

How do isotopes have different masses?

A

They have different numbers if neutrons which dont affect the element but affect the mass