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sveticcg [70]
3 years ago
9

Describe how the metal probably increases the reaction rate, identify whether this an example of homogeneous or heterogeneous ca

talysts, and explain how you know.
Chemistry
1 answer:
Ulleksa [173]3 years ago
4 0

Explanation:

The metal probably helps to speed up the reaction rate a/c to collision theory, reactant molecules must collide with a reasonable direction by either weakening bonds in reactant molecules to make them extra reactive or by attaching reactant molecules in the exact direction to react.

This is known as an example of heterogeneous catalysis because the catalyst is solid and the reactants are liquid or gases mixture. In this catalysis, the catalyst is present in a different phase compare to the reactants.

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How does the moon's physical characteristics make it easier for scientists to study than the sun?
Vlad1618 [11]

Answer:

1st question: The moon is closer to Earth so it is easier to see and visit.

2nd question: The moon has a week/month cycle instead of a day/night cycle.

3rd question: The corona

Explanation:

5 0
2 years ago
A child picks up a tennis ball tied to the end of a rope. He swings the rope around, over his head, in a circle. Once the ball i
kkurt [141]

Answer:

The ball will fly tangential to the original circle

Explanation:

The image here is missing, however we can still answer to the question.

In fact, the circular motion of the ball when it is tied to the rope is a combination of two separate effects:

1- The centripetal force, in the form of the tension in the rop, that pulls the ball at any time towards the centre of the circular path

2- The inertia of the ball, which tends to continue its motion in a straight direction, tangential to the circle and perpendicular to the direction of the centripetal force

When child let the string go, there is no more tension in the string acting on the ball, and therefore, there is no longer a centripetal force.

As a result, number 1) disappears, and therefore there is only the inertia of the ball that will determine its motion: and therefore, the ball will continue its motion straight in a direction tangential to the original circle.

5 0
3 years ago
A radioisotope forms a stable isotope after it undergoes radioactive decay. Which is the best conclusion to draw from this state
Black_prince [1.1K]

Answer:

C. It does not participate in a decay series.

Explanation:

From this statement, we can deduce that a radioisotope that forms a stable isotope after it undergoes radioactive decay suggests that it does not participate in a decay series.

  • It could have emitted any form of radioactive particles which can be alpha or beta.
  • We do not know if it has a long or short half life because the value is not given.
  • But since the radioactive decay in one step produces a stable isotope, we can conclude that it did not participate in a decay series.
  • A decay series involves a radioactive decay in multiple steps.
3 0
3 years ago
Read 2 more answers
Why is it possible to collect hydrogen gas over water?
maw [93]
A gas produced in a chemical reaction can be collected by water displacement. Because the gas is collected over water, it is not pure but is mixed with vapor from the evaporation of the water. Dalton's law can be used to calculate the amount of the desired gas by subtracting the contribution of the water vapor.

4 0
3 years ago
Kylee has been learning that engineering and technology are beneficial to people. She now sees how the things people synthesize
marysya [2.9K]

Answer:

They are synthesized from raw materials

Explanation:

All synthesized products goes through lots of processes. This processes involves the conversion of substances known as raw materials into a more useful and modified form.

These synthesized products are usually more useful and made in order to solve a given problem or offer a particular service. Raw materials are cheaper than the synthesized products and are common in all industries and fields.

4 0
3 years ago
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