No student devices needed. Know more
28 questions
The laboratory test for oxygen is that
it relights a glowing splint
it relights a burning splint
it changes lime water to milky
it makes a glowing splint go out
Bleaches damp litmus paper
Chlorine
Oxygen
Hydrogen
Water
Turns limewater milky
Hydrogen
Oxygen
Ammonia
Carbon dioxide
Makes a squeaky pop sound when lit
Hydrogen
Oxygen
Chlorine
Ammonia
What is the greenhouse effect?
warming of the earth due to gases such as carbon dioxide and methane in our atmosphere
cooling of the earth due to gases in our atmosphere
The increased greenhouse effect leads to global warming
True
False
Which of the following sets of evidence supports global warming?
CO2 levels rising
Sea levels rising
Glacier mass decreasing
All of the above
All of the following are greenhouse gases except
water vapor
nitrogen
carbon dioxide
methane
Carbon dioxide is taken in by plants during which process?
Respiration
Transpiration
Photosynthesis
Transportation
Which of the following individual actions would do the most to reduce atmospheric methane?
Going vegan
Planting a tree
Riding the bus instead of driving a car
Switching to rechargeable batteries
When oxygen reacts with another chemical element
reduction
addition
oxidation
displacement
Scientific name for burning
chromatography
distillation
neutralisation
combustion
Gas needed for combustion
nitrogen
oxygen
carbon dioxide
methane
When an oxidation happens with the help of heat it is called
combustion
reduction
neutralisation
displacement
Test for ammonia gas
turns red litmus paper blue
relights glowing splint
makes squeaky pop
turns limewater milky
Turns blue litmus paper red and then bleaches it (turns it white)
ammonia
oxygen
chlorine
hydrogen
Burns with pale blue flame
sulfur
magnesium
hydrogen
Burns with bright white flame
magnesium
hydrogen
sulfur
Makes a squeaky pop when it burns in oxygen
hydrogen
sulfur
magnesium
To test for the presence of water you would use
hydrated copper sulfate
ammonia
magnesium
hydrogen
Test for carbonates
Perform squeaky pop test
Add diluted acid and bubble through limewater
Use blue litmus paper
Use red litmus paper
Explore all questions with a free account