Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Science > The Material World > Flashcards

The Material World Flashcards

You may prefer our related Brainscape-certified flashcards:
Biology 101 flashcards
1
Q

What is an electrolyte?

A

A substance that, when dissolved in water, allows an electrical current to flow through the solution.

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

What is a base?

A

A substance containing a metal and OH (ex: NaOH)

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

What is an acid?

A

A substance containing H and a non-metal (ex: HCI)

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

What is a salt?

A

A substance produced by the chemical bonding of a metallic ion and a nonmetallic ion (ex:NaCI)

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

If the pH of a substance is neutral, is it a base, an acid, or a salt?

A

A salt

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

Identify the properties of an acid.

A
  • Litmus turns red
  • Has a pH between 1 and 6.9
  • Reacts with metals
  • Electrolyte
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Identify the properties of a base.

A
  • Litmus turns blue
  • Has a pH between 7.1 and 14
  • Electrolyte
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Identify the properties of a salt.

A
  • Has a pH of 7

* Electrolyte

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

Identify the three electrolytes.

A

Acids, Bases and Salts

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

What is matter ?

A

Anything made up of atoms

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

What makes up an atom ? (3) (Sub particles)

A
  • Protons
  • Neutrons
  • Electrons
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What are the 3 states ?

A
  • Solid
  • Liquid
  • Gas
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is the difference between atoms and elements ?

A

An atom is a individual particle. An element can be alone or together.

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

What do you need in order to make a Rutherford-Bohr Model ? (3)

A
  • The nucleus in the center to show the number of protons
  • The electronic shells (Energy levels)
  • The order of electrons 2-8-8-2
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Where is protons located and what is the charge ?

A

Positive charge.

Located at the nucleus of the atom

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

Where is neutrons located and what is the charge ?

A

Neutral charge.

Located at center of atom.

17
Q

Where is electrons located and what is the charge ?

A

Negative charge

Located very far from center of atom

18
Q

What does the atomic number represent ?

A

The number of protons in the nucleus of an atom ?

19
Q

When are ION positive ?

A

If the number of protons is greater then the number of electrons.

20
Q

When are ION negative ?

A

If the number of electrons is greater then the number of protons

21
Q

To get a full shell in a ION, what happens when you add and take away electrons?

A

If you take away : Positive

If you add : Negative

22
Q

What do elements in the same period have ?

A

Same number of electron shells
or
same number of energy levels

23
Q

What do elements in the same family have ?

A

Same number of valance electrons and same chemical properties

24
Q

What does the lewis notation show ?

A

The elements symbol, the number of valance electrons.

Science (7 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions