chemical reactions Flashcards
1
Q
what comes from reactants
A
products
2
Q
hydrogen test
A
makes a squeaky pop with a lighted splint
3
Q
oxygen test
A
glowing wooden splint relights
4
Q
carbon dioxide test
A
turns lime water from clear to milky
5
Q
endothermic means
A
it is cooler than it’s surroundings
6
Q
exothermic means
A
it is hotter than it’s surroundings
7
Q
examples of acids
A
hydrochloric acid
sulfuric acid
8
Q
examples of alkalis/bases
A
bleach
baking soda
9
Q
litmus paper turns red in an
A
acid
10
Q
litmus paper turns blue in an alkaline/base
A
11
Q
why is universal indictor better than litmus paper
A
because you can tell the exact ph level with universal indicator
12
Q
neutralization is
A
acid + alkaline = salt + water
13
Q
metal with acid is
A
metal + acid = salt + hydrogen
14
Q
magnesium + hydrochloric acid =
A
magnesium chloride + hydrogen
15
Q
metal + oxygen =
A
metal oxide
