Answer:
Cl2(g) (green/yellow mix) + 2KBr(s) (white) ---> 2KCl(s) (violet) + Br2(g) (reddish brown)
This chemical reaction is a redox type.
Explanation:
Look at the oxidation state, when the number increase your element gets oxidated, when the number decrease, the elements it's getting reduced.
In your problems the possible solution is this one:
<span><span>F<span>fr</span></span>=<span>μk</span><span>FN</span>=<span>μk</span>mg</span><span>0.5(50000kg)(−9.8<span>m<span>s2</span></span>)</span><span>=−245000N</span>
<span>a=F/m</span><span>−245000N/50000kg</span><span>=−4.9<span>m<span>s2</span></span></span><span>t=<span><span>v−<span>v0</span></span>a</span></span><span><span>0−10<span>ms</span></span><span>−4.9<span>m<span>s2</span></span></span></span><span><span>=2s
I hope you understand and satisfied with my answer</span></span>
Because the solid is soluble in water, it cannot be calcium fluoride.
This leaves us with either silver fluoride or potassium bromide, as both are soluble in water.
Upon addition of sodium sulfate, a white precipitate forms, confirming that the substance was silver fluoride as the precipitate are of silver sulfate.
<h3><u>Answer;</u></h3>
Directly proportional
<h3><u>Explanation;</u></h3>
- <em><u>Concentration is one of the factors that determine the rate of a reaction. Reaction rates increases with increase in the concentration of the reactants, which means they are directly proportional.</u></em>
- An increase in the concentration of reactants produces more collisions and thus increasing the rate at which the reaction is taking place. Therefore, <u>Increasing the concentration of a reactant increases the frequency of collisions between reactants and will cause an increase in the rate of reaction.</u>
