How can you test to show that when a metal reacts with water, hydrogen gas is produced?
A) A lit splint produces a squeaky pop
B) Is cold to the touch
C) Relights a glowing splint
D) Puts out a burning splint
Which is NOT a physical property?
A) dissolves
B) odor
C) reacts with bleach
D) sinks in water
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Answer:
1,a pop sound 2,c react with bleach
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