Chemistry, 16.04.2021 18:50 katieP1992
A) What type of friction acts on a car slowing down on the road? Neglect air resistance. *
static
sliding
rolling
fluid
b) What two types of force act on a skydiver with its parachute open? *
sliding friction and applied force
rolling friction and air resistance
gravity and air resistance
c) What two forces are acting on a book at rest on a table? *
gravity and sliding friction
push force and sliding friction
gravity and normal force
Answers: 1
Chemistry, 21.06.2019 18:30
In an oxidation-reduction reaction, oxidation is what happens when a reactant
Answers: 1
Chemistry, 22.06.2019 13:30
Which statements are true concerning mineral formation? check all that apply. the slower the cooling, the larger the crystals. the faster the cooling, the smaller the crystals. crystals formed from magma are smaller than crystals formed from lava. minerals can only form in solutions when the solution is heated deep underground. when a solution cools, elements and compounds leave the solution and crystallize as minerals. minerals formed from hot water solutions can form narrow channels in the surrounding rock.
Answers: 1
Chemistry, 22.06.2019 14:30
Consider the reduction reactions and their equilibrium constants. cu+(aq)+e−↽−−⇀cu(s)pb2+(aq)+2e−↽−−⇀pb(s)fe3+(aq)+3e−↽−−⇀fe(=6.2×108=4.0×10−5=9.3×10−3 cu + ( aq ) + e − ↽ − − ⇀ cu ( s ) k =6.2× 10 8 pb 2 + ( aq ) +2 e − ↽ − − ⇀ pb ( s ) k =4.0× 10 − 5 fe 3 + ( aq ) +3 e − ↽ − − ⇀ fe ( s ) k =9.3× 10 − 3 arrange these ions from strongest to weakest oxidizing agent.
Answers: 3
A) What type of friction acts on a car slowing down on the road? Neglect air resistance. *
static
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