What does a catalyst do when added to a chemical reaction? Select all that apply.
2 answers:
Answer:
Explanation:
A catalyst is a substance that <u>increases the rate</u> of a chemical reaction. Some examples are enzymes and acid-base catalysts.
They can do this by <u>lowering activation energy</u> (the energy needed to undergo a reaction) or modifying a certain mechanism in the reaction.
Catalysts are unique because they aren't consumed or used up in a reaction. They can be reused many times.
So, based on the information above, catalysts do not increase the activation energy or get consumed in the reaction. That leaves two correct answers: they lower the activation energy and speed up chemical reactions.
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Answer : The correct option is B- Towards the left.
Solution : Given,
Force on car in upward direction, = 6000 N
Force on car in downward direction, = 6000 N
Force on car in right direction, = 5000 N
Force on car in left direction, = 6000 N
Force : Force is equal to the mass multiplied by the acceleration. The force is directly proportional to the acceleration.
Formula : F = m × a
where, F is force, m is mass and a is acceleration.
From the given diagram we conclude that the and
are in opposite direction and the force acting on car are same. So, their net force is zero.
And in case of and
, the net force will not be zero because force acting on car are different. The car will accelerate towards left direction because
is higher than the
.
So, the car will accelerate towards left direction.
Answer:
Explanation:
Hello,
In this case, by using the ideal gas equation, er can compute the volume of fluorine gas as shown below:
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