stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
02- Elements, Compounds & Mixtures Flashcards | StudBud
Explore
/
02- Elements, Compounds & Mixtures
02- Elements, Compounds & Mixtures
25 terms
·
StudBud Administration
·
1,609 plays
#elements #compounds #mixtures #chemistry #7thgradescience
Flashcards
25 cards
F
Practice quiz
P
Host live
L
Questions
25
Answers
1
Sodium (Na) and Chlorine (Cl) combine to form sodium chloride. Sodium and Chlorine are:
Compounds
Producers
Products
Reactants
2
15 grams of sugar are dissolved into 300 grams of water. What is the mass of the mixture?
300 grams
285 grams
15 grams
315 grams
3
What is shown in box A?
Mixture
Molecule
Elements
Compound
4
A chemical equation must have the same compounds on both sides to be balanced.
False
True
5
What is shown in box D?
Compounds
Elemental molecules
Elemental atoms
Mixture
6
In a mixture, each substance that makes it up will keep or retain its own properties.
True
False
7
Is square D showing an element, compound or mixture?
Compound
Mixture of elements
Element
Mixture of compounds
8
What does square B show- an element compound or mixture?
Mixture
Element
Compound
9
Carbon dioxide's properties are
the same as oxygen
the same as carbon
half carbon and half oxygen properties
different from carbon and oxygen
10
A _____________ is a combination of two or more substances that are NOT chemically combined.
Metal
Molecule
Mixture
Compound
11
These can only be separated by chemical means.
Compounds
Elements
Mixtures
12
All compounds are molecules, but not all molecules are compounds.
False
True
13
Is square C showing an element, mixture or compound?
Mixture
Compound
Element
Molecules
14
If 4 hydrogen atoms react with 2 oxygen atoms how many atoms will be in the product?
4
2
6
8
15
What is shown in box C?
Molecules
Elements
Compounds
Mixture
16
Evidence of a chemical reaction (chemical change) occurring include:
Phase change (solid -> liquid)
Bubbles
Shape Change
New substance (ex. gas being given off)
17
Carbon Dioxide is an example of a ...
Element
Colloid
Mixture
Compound
18
A mixture can be separated ......
Physically
Chemically
by breaking chemical bonds
destroying matter
19
Is square A showing an element, compound or mixture?
Solution
Compound
Mixture
Element
20
The atoms in a compound are in fixed ratios. Ex. Water must always be H
2
O.
False
True
21
The atoms and molecules in a mixture are in fixed ratios.
False
True
22
Which of the following only contains one type of atom?
Mixture
Compound
Element
Suspension
23
Which of the following is a pure substance (all atoms and/or molecules are the same)?
Element & Compounds
Compound & Mixtures
Element & Mixtures
Molecules & Mixtures
24
A compound is formed when two or more
different
elements are joined together chemically.
False
True
25
What is shown in box B?
Mixture
Compounds
Elements
Lemon and lime skittles
