Biology, 27.05.2020 18:57, anicholson41
Dont answer if you dont know it
Why do metals conduct electricity?
Question 1 options:
metals hang on tightly to their electrons
electrons flow freely in metallic bonds
electrons are good at insulating from heat
metals are slippery
In an ionic bond, electrons are .
Question 2 options:
given to noble gases
gained or lost
moved to inner shells/orbitals
shared
What happens when an acid is mixed with a base?
Question 3 options:
they will form a stronger acid
they will form a gas
they will neutralize each other
they will form a stronger base
How many valence electrons do most atoms need to have in their outer shell to be most stable?
Question 4 options:
8
1
4
6
Metals tend to electrons and become .
Question 5 options:
lose, anions
lose, cations
gain, anions
gain, cations
What does a chemical change always result in?
Question 6 options:
precipitate
new reactant
increased activation energy
new substance
Question 7
Fill in the blank: What is the correct name for the ionic compound Ca2P5?
Which is NOT evidence of a chemical reaction?
Question 8 options:
bubbles
precipitate formed
melting
color change
Answers: 3
Biology, 22.06.2019 03:30, queenkimm26
All vaccination should(n’t) be mandatory! 1.at least 5 sentences explaining 2.why? 3.in the end summarize the sentence
Answers: 3
Dont answer if you dont know it
Why do metals conduct electricity?
Question 1 opti...
Why do metals conduct electricity?
Question 1 opti...
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