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Q 1/10
Score 0
When heating your test tube with the sucrose from the lab, the proper procedure would be —
45
to seal off the test tube with a rubber stopper.
to allow the contents of the test tube to overflow.
to point the test tube toward your lab partner.
to point the test tube away from you and others.
Q 2/10
Score 0
A physical property may be investigated by —
45
allowing silver to tarnish.
melting ice.
letting milk turn sour.
burning wood.
10 questions
Q.
When heating your test tube with the sucrose from the lab, the proper procedure would be —
1
45 sec
Q.
A physical property may be investigated by —
2
45 sec
Q.
Particles in a solid are usually —
3
45 sec
Q.
Silver has a mass number of 109 and has 47 protons. How many neutrons does this atom contain?
4
45 sec
Q.
How many valence electrons would a Neon atom contain?
5
45 sec
Q.
You find a piece of metal at your lab station and determine the mass of the metal to be 5.6 grams. The volume of the metal is 1.6 mL. What is the density of the piece of metal?
6
60 sec
Q.
To which group do potassium and lithium belong?
7
60 sec
Q.
Which statement matches a subatomic particle with its charge?
8
45 sec
Q.
The appearance of metals can be described as ____.
9
45 sec
Q.
Which of the following sets of coefficients will balance the following equation?
