other

Question 1

what makes acids stronger?

Answer 1

the more hydrogen+ ions they release [in aqueous solutions], the stronger they are

Question 2

what makes something a base?

Answer 2

it forms (absorbs from surroundings) hydrogen- ions in water

Question 3

what is corrosion?

Answer 3

the breakdown of metal from reaction with other elements (O2 or H2O) over time

Question 4

endothermic

Answer 4

absorbs energy from environment

Question 5

exothermic

Answer 5

releases energy into environment

Question 6

complete combustion

Answer 6

fuel + enough oxygen

no soot or harmful by products

releases max energy

Question 7

decomposition reaction

Answer 7

when one compound breaks down into 2 or more simple substances

Question 8

precipitation reaction

Answer 8

when 2 aqueous solutions react and form a solid

Question 9

aqueous =

Answer 9

substance that is dissolved in water

Question 10

synthesis reaction

Answer 10

when two or more substances combine to make something more complex

opposite of decomposition

Question 11

displacement reaction

Answer 11

when one element replaces another in a compound (at least 3 elements total)

Zn + CuSO4 > ZnSO4 + Cu

there is also “double displacement” where there’s 4 or more elements in at least 2 compounds and they swap (-ion swap w -ion, +ion swap w +ion)