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3 years ago

The Rock Cycle moves in a specific order. True or False

Chemistry

1 answer:

Mariana [72]3 years ago

8 0

Answer:

it is false

Explanation:

it goes in different ways not in order

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Shelby measured the volume of a cylinder and determined it to be 54.5cm3. The teacher told her that she was 4.25% too high in he

FinnZ [79.3K]

Answer:

56.8cm³

Explanation:

Given parameters:

Measured volume = 54.5cm³

Percentage error = 4.25%

Unknown:

Actual volume of the cylinder = ?

Solution:

The percentage error shows the amount of error introduced into a measurement.

We need to find out this amount of error from the data given.

Error = Percentage error x measured volume

Error = $\frac{4.25}{100}$ x 54.5 = ±2.32cm³

Since the error introduced = 2.32cm³

Actual volume of cylinder = measured volume ± Error

Since the percentage error quoted as higher 4.25%;

Actual volume = 54.5cm³ + 2.32cm³ = 56.8cm³

6 0

3 years ago

A catalyst lowers the activation energy for both the forward and the reverse reactions in an equilibrium system, so it has no ef

rosijanka [135]

Answer:

True.

Explanation:

Catalyst increases the rate of the reaction without affecting the equilibrium position.

Catalyst increases the rate via lowering the activation energy of the reaction.

This can occur via passing the reaction in alternative pathway (changing the mechanism).

The activation energy is the difference in potential energies between the reactants and transition state (for the forward reaction) and it is the difference in potential energies between the products and transition state (for the reverse reaction).

in the presence of a catalyst, the activation energy is lowered by lowering the energy of the transition state, which is the rate-determining step, catalysts reduce the required energy of activation to allow a reaction to proceed and, in the case of a reversible reaction, reach equilibrium more rapidly.

with adding a catalyst, both the forward and reverse reaction rates will speed up equally, which allowing the system to reach equilibrium faster.

Kindly, see the attached image.

5 0

3 years ago

Read 2 more answers

What is the dependent and independent variable

sukhopar [10]

An independent variable is the variable changed or controlled in a scientific experiment to test the effects on the dependent variable. A dependent variable is the variable being tested and measured in a scientific experiment.

5 0

3 years ago

The area that includes everything between the cell membrane and the nucleus of a cell is called the

kolbaska11 [484]

Answer:

Cytoplasm.

Explanation:

Please mark as Brainliest! :)

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3 years ago

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What are the names of major groups that settled in the islands of Oceania