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Q 1/10
Score 0
When you measure the mass and the volume of a piece of chalk, you are investigating what properties?
30
chemical and extensive properties
physical and extensive properties
chemical and intensive properties
physical and intensive properties
Q 2/10
Score 0
Which of the following describes a chemical property?
30
An iron bar rusts.
Aluminum is a silver-colored metal.
Ice melts when heated.
The density of iron is 7.87 g/cm3.
10 questions
Q.
When you measure the mass and the volume of a piece of chalk, you are investigating what properties?
1
30 sec
Q.
Which of the following describes a chemical property?
2
30 sec
Q.
Which of the following describes a physical property of matter?
3
30 sec
Q.
Combining lemon juice and water produces lemonade. To make the lemonade taste better, one could add some sugar. Provided that the seeds and the pulp are strained and the sugar dissolves completely, what classification of matter does this lemonade-sugar combination be classified?
4
30 sec
Q.
Which of the following is an element?
5
30 sec
Q.
Which of the following is name of the compound NaOCL?
6
30 sec
Q.
Which of the following is often used in low-grade cosmetics which improves the color and the appearance of the make-up but when ingested in even very low dosages can cause brain damage or even death?
7
30 sec
Q.
Which of the following is the separation technique used when cooking rice by letting the grains settle down at the bottom before gently pouring the water out of the casserole.
8
30 sec
Q.
Which of the following is the method used in separating the pigments of a black ink.
9
30 sec
Q.
Which of the following is the method to be used in separating a mixture containing acetone and water?
