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Q 1/34
Score 0
The smallest particle an element can be divided into and still be that element is the ________.
30
atom
neutron
isotope
proton
Q 2/34
Score 0
The modern periodic table is organized according to ____________.
30
atomic number
name of element
atomic mass
element symbol
34 questions
Q.
The smallest particle an element can be divided into and still be that element is the ________.
1
30 sec
Q.
The modern periodic table is organized according to ____________.
2
30 sec
Q.
Which subatomic particles can be found in the nucleus?
3
30 sec
Q.
Which subatomic particle is the arrow pointing to in the figure ​below?​
4
30 sec
Q.
Which of the following statements is true about the diagram?
5
30 sec
Q.
The horizontal rows in the periodic table are known as ___________.
6
30 sec
Q.
What can you predict from an element’s location in the Periodic Table?
7
30 sec
Q.
John discovered that sodium (Na) is found in Group 1 on the Periodic Table. Where should John look for another element that has similar properties?
8
30 sec
Q.
Which particles in atoms have a negative charge?
9
30 sec
Q.
The isotopes of an element have the same number of protons but different numbers of ________.
10
30 sec
Q.
Which is the smallest unit of matter?
11
30 sec
Q.
Which of the following is a compound?
12
30 sec
Q.
Which of the following statements is correct about matter?
13
30 sec
Q.
Martha has a big box with a mixture of paper clips. Some are metal and some are plastic. Which is the best property for Martha to use to separate the metal paper clips from the plastic paper clips?
14
30 sec
Q.
Marcie wanted to find the density of a silver bracelet. She found that its mass was 20 grams and its volume was 2 ml. What was the density of the silver bracelet?
15
30 sec
Q.
A piece of wood that is less dense then water will do what?
16
30 sec
Q.
Physical properties can be used to compare and classify substances. Which statement is correct about a physical property?
17
30 sec
Q.
Which of the following is a chemical property?
18
30 sec
Q.
If you cut a wooden block in half, each half would have which of the following?
19
30 sec
Q.
Use the data table above to find which liquid would have the greatest mass if there is 100ml of each liquid.
20
30 sec
Q.
A solution has the pH of 2.4. How would this solution be classified?
21
30 sec
Q.
Using the pH scale above which substance is closest to neutral?
22
30 sec
Q.
A group of two or more elements held together by chemical bonds is known as a(n) _________
23
30 sec
Q.
A substance made up of two or more different elements that are chemically bonded is known as a (an) _____________
24
30 sec
Q.
Apple juice is an example of which?
25
30 sec
Q.
Which of the following is the definition of a solution?
26
30 sec
Q.
Which statement below describes the difference between mixtures and pure substances?
27
30 sec
Q.
In which of the following situations does the Law of Conservation of Mass apply?
28
30 sec
Q.
In a chemical reaction, 300 grams of hydrogen peroxide are combined with 200 grams of manganese dioxide. According to the Law of Conservation of Mass, what will be the mass of the product?
29
30 sec
Q.
Which one of the following is NOT an example of a chemical change?
30
30 sec
Q.
When a candle is lit, the wick burns, the wax melts, the candle changes shape, and the air around the candle heats up. Which of the following is an example of a chemical change?
31
30 sec
Q.
Tina and Jenni put some ice cubes in a glass of water, and the ice cubes melted. What is the BEST evidence they can use to show that the melting of the ice is a purely physical change and not a chemical change?
32
30 sec
Q.
Which of the following would definitely increase the rate of a reaction?
33
30 sec
Q.
Increasing the temperature of a chemical reaction increases the reaction rate. Which of the following statement explains why?
