Brainscape's Knowledge GenomeTM

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


See full index

Chemical Reactions > Chem Reactions > Flashcards

Chem Reactions Flashcards

You may prefer our related Brainscape-certified flashcards:
Organic Chemistry 101 flashcards
0
Q

An electron in an atom’s outmost energy level

A

A valence electron

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

Number written to lower right of chemical symbol

A

Subscript

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

Chemical symbols that identify the elements that make up a compound

A

Chemical formula

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

The two in the formula H2O is a

A

Diatomic molecule

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

Substance formed in a chemical reaction

A

Product

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

Matter cannot be created or destroyed by a chem change

A

Law of conservation of matter

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

Chem reaction in which electrons are gained

A

Reduction

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

Substance change in a chem reaction

A

Reactant

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

A more complex substance is formed from two smaller substances

A

Synthesis reaction

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

Scientist represent elements by using?

A

Chemical symbols

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

The compound NaOH contains which elements

A

Sodium, oxygen, hydrogen

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

The oxidation numbers of elements in a compound must add up to?

A

0

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

The reactant in the equation 2H2 + O2 yield 2H2O are

A

Hydrogen and oxygen

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

In a chem reaction, matter cannot be?

A

Created

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

The arrow in a chem equation means?

A

Yield

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

The number of atoms on each side of an equation must always be?

A

Equal

16
Q

The chemical formula 3H2O means?

A

Six atoms of hydrogen and three atoms of oxygen

17
Q

In a chem reaction, atoms gain and lose?

A

Electrons

18
Q

The product of a synthesis reaction is always?

A

Compound

19
Q

Acids are sometimes called?

A

Proton donors

20
Q

When placed in water, all bases release?

A

Hydroxyl ions

21
Q

If you put blue litmus paper into a cup if vinegar the paper will turn?

A

Red

22
Q

A solution with PH of 2 is?

A

Strongly acidic

23
Q

Chemical symbols are made up of one or two_________

A

Letters

24
Q

The Chemical formula of a compound tells you what __________the compound contains

A

Elements

25
Q

Acid reacts with metal to release _______________gas.

A

Hydrogen

26
Q

All bases release _______________ ions in water

A

Hydroxyl

27
Q

A neutral solution has a pH of ______

A

7

Chemical Reactions (1 decks)

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