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puteri [66]
2 years ago
7

Using the idea that reactions occur as a result of collisions between particles, explain why reaction rates depend on the temper

ature of the reaction mixture.
Chemistry
1 answer:
PIT_PIT [208]2 years ago
6 0

Increasing temperatures in a reaction increases the kinetic energy of the reactant molecules. This causes them to move fast and hence collide with a higher frequency. The higher the rate of collision between the molecules, the faster the reaction.

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What changes in color occur when bromine reacts with an alkene​
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Answer:

Explanation: Bromine, the dark red color disappears quickly as the atoms of bromine bond with the atoms of carbon in the double bond.

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during a chemical reaction when the products of that reaction require less potential energy describe what happens to the surroun
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They stay the same I am pretty sure this is
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2 years ago
What is the osmotic pressure, in torr, of a 3.00% solution of NaCl in water when the temperature of the solution is 45 ºC? Enter
Anit [1.1K]

213034 torr is the osmotic pressure.

Explanation:

osmotic pressure is calculated by the formula:

osmotic pressure= iCrT

where i= no. of solute

c= concentration in mol/litre

R= Universal Gas constant

T = temp

It is given that solution is 3% which is 3gms in 100 ml.

let us calculate the concentration in moles/litre

3gm/100ml*1000ml/1L*1mol NaCl/55.84g NaCl

= 5.372 gm/litre

Putting the values in the formula,                   Temp in Kelvin 318.5K

osmotic pressure= 2*5.372*0.083 * 318.5                 Gas constant  0.083

                              = 284.023 bar or 213018 torr.                 c=  5.372 moles/L                                                                              

                                                                                    i=2 for NaCl

4 0
3 years ago
Which statement best describes the main benefit to organisms that reproduce sexually?
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B. They will conserve energy during reproduction

Explanation:

5 0
2 years ago
Read 2 more answers
Using the chemical equation below, how many moles of Al2O3 produce when 105 grams of Al are reacted? 2Al+Fe2O3 —> Al2O3+2Fe
topjm [15]

Answer:

1.94

Explanation:

moles = mass/Mr so you have 3.889 moles of aluminium, but because the ratio in the equation is 2:1 you need to halve it.

4 0
2 years ago
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