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What is Chemistry? Flashcards | StudBud
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What is Chemistry?
What is Chemistry?
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1
How many elements are on the periodic table?
100
115
118
120
2
True or False: The noble gasses tend to be very stable and do not react.
True
False
3
How are elements organized on the periodic table?
in alphabetical order
by atomic number
by their appearance
in the order they were discovered
4
What is this item called?
beaker
graduated cylinder
crucible
test tube
5
True or False: The first step of the scientific method is to perform an experiment.
False
True
6
True or False: Electrons are bigger than protons and neutrons.
True
False
7
What is the chemical symbol of gold?
G
Au
Go
Gd
8
Where are the metals found on the periodic table?
on the bottom of the periodic table
on the right and center
on the left and center
on the top of the periodic table
9
H
2
O is a(n):
isotope
element
atom
molecule
10
Which scientist works at Harvard and helped develop Moderna's COVID vaccine?
Dr. Kizzmekia Corbett
Dr. Cynthia Kenyon
Dr. Jennifer Doudna
Dr. Sunetra Gupta
11
Which of the following is NOT an element:
Copper
Carbon dioxide
Gold
Potassium
12
Who was the first woman to win a Nobel Prize in Chemistry?
Marie Curie
Kelly Clarkson
Marie Antoinette
Irene Curie
13
True or False: Protons and neutrons are found in the nucleus.
False
True
14
Which of the following is true about physical changes?
You must be strong to make the change.
The matter stays the same, just in a different form.
New matter is created.
The atoms rearrange to make a new substance.
15
True or False: A proton has a positive charge.
True
False
16
A firework exploding is:
a physical change because a smell is produced.
a physical change because a flame is produced.
a chemical change because it catches on fire.
a chemical change because it looks different.
17
True or False: A neutron has a negative charge.
False
True
18
An atom:
is made of two elements bonded together.
can't be broken into smaller pieces.
contains protons, neutrons and electrons.
is very large.
19
Which is true about a chemical change?
A new substance is created that is different than the original.
Chemical changes can only take place with liquids.
The change is reversible.
A chemical change can only take place with 2 chemicals.
20
The MOST reactive of the metals are found in which group?
noble gasses on the far right side
group 8 on the far right side
group 1 on the far left side
the bottom half of the periodic table
