WorksheetsScience 7 - Chemistry
Total questions: 10
Worksheet time: 4mins
When the temperature of the environment decreases, the boiling point of the pure substance will _________.
double
decrease
increase
stay the same
What type of mixture is a solution?
heterogeneous
homogeneous
immiscible
all of the above
Which of the following is a mixture?
salt
sugar
water
sugar and water
Which of the following can be used for Quantitative data collection?
Arrangement
Color
Temperature
Texture
Which of the following is the chemical name for table salt or asin?
sodium hydroxide
sodium chloride
sodium bicarbonate
aluminum chlorohydrate
What do you call an educated guess based on one's observation?
conclusion
hypothesis
problem
variable
What volume of concentrated solution of potassium hydroxide (6.00M) must be diluted to 200 mL to make a 0.880 M solution of potassium hydroxide?
50.0 mL
17.6 mL
26.4 mL
29.3 mL
Which of the following substances is an element?
air
iron
sugar
salt
The following substances are examples of compound EXCEPT:
ammonia
helium gas
table sugar
hydrogen peroxide
Which of the following will boil at a changing temperature?
mercury
seawater
pure ethanol
distilled water
