Which of these statements is true about reaction rates is accurate? a. all chemical reactions occur at a slow rate.
b. all chemical reactions at the same rate.
c. all chemical reactions at a fast rate.
d. all chemical reactions occur at different rates.

Answers

Answer 1

Answer: all chemical reactions occur at different rates due to difference in their kinetic energy option D is right hope this helps

Answer 2

Answer:

Hi there!

Analyzing This Question Correctly We Can conclude thatthe Most accurate and correct answer is D.

We Can conclude to this By using The collision theory.The Collision Theory states that in order for a reaction to proceed, the reactant particles must collide. The more successful collisions there are per unit of time, the faster the reaction will be.

Factors which can affect the rate of a reaction include:

⚛ concentration

⚛ temperature

⚛ particle size

⚛ catalysts

⚛ stirring rate

⚛ light intensity

For Example, By adding less Baking soda to Vinegar the less Co2(Carbon Dioxide) Will Be created.

By Adding More Baking Soda to vinegar, more Co2 Will Be created.

Hope This Has helped

--Adan M

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A cell created by cloning is genetically A identical to its parent. B identical to its stem cell. C unique because it is a mixture of DNA. D half like its father and half like its mother.

Answers

Answer: Identical to its parent.

Explanation:

The cloning can be defined as the process by which genetically identical individuals of an organism is produced either artificially or naturally.

The cloning in case of biotechnology refers to the creating the clones of organisms or copies of cells or DNA of the parent cell that is being used in the process.

The parent cell is cloned and numerous copies is made just like that of the asexual reproduction in the nature.

Example: Dolly the sheep.

A cell created by cloning is genetically identical to its parent. The correct answer is option A.

DNA (deoxyribonucleic acid) is a molecule that carries genetic information and instructions for the development and function of all living organisms.

When a cell is cloned, it is essentially a copy of the original cell. This means that the genetic material in the cloned cell is identical to the genetic material in the original cell.

The DNA in the cloned cell is exactly the same as the DNA in the parent cell, and there is no mixing or recombination of DNA from different sources.

In conclusion, the correct answer is A) identical to its parent. A cell created by cloning is genetically identical to its parent.

Learn more about DNA here:

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If 62.0 grams of magnesium metal (Mg) react with 55.5 grams of oxygen gas (O2) in a synthesis reaction, how many grams of the excess reactant will be left over when the reaction is complete? Be sure to write out the balanced equation for this reaction and to show all of your work.

Answers

The balanced chemical equation would be as follows:

Mg + O2 → MgO2

We are given the amounts of the reactants. We need to determine first which one is the limiting reactant. We do as follows:

62.0 g Mg (1 mol / 24.31 g ) = 2.55 mol Mg
55.5 g O2 ( 1 mol / 32 g ) = 1.74 mol O2 -----> consumed completely and therefore the limiting reactant

2.55 mol - 1.74 mol O2( 1 mol Mg / 1 mol O2 ) = 0.81 mol Mg excess

Answer:

14.1648 grams of oxygen gas will be left.

Explanation:

$2Mg +O_2\rightarrow 2MgO$

Moles of magnesium metal = $(62.0 g)/(24 g/mol)=2.5833 mol$

Moles of oxygen gas = $(55.5 g)/(32 g/mol)=1.7343 mol$

According to reaction, 2 mol of magnesium react with 1 mol of oxygen gas .

Then 2.5833 moles of magnesium will react with:

$(1)/(2)* 2.5833 mol=1.29165 mol$ of oxygen gas.

Moles of oxygen left unreacted =1.7343 mol - 1.29165 mol = 0.44265 mol

Oxygen gas is an excessive reagent.

Mass of 0.44265 moles of oxygen gas:

0.44265 mol × 32 g/mol = 14.1648 g

14.1648 grams of oxygen gas will be left.

WHAT IS CLEVAGE PLANE

Answers

Cleavage, in mineralogy, is the tendency of crystalline materials to split along definite crystallographic structural planes.

How many degrees Celsius is 871.09 Kelvin? Round your answer to two decimal places.

Answers

To convert Kelvin to Celsius, you need to subtract 273.15 from the given value. Let's perform the conversion:

871.09 Kelvin - 273.15 = 597.94 degrees Celsius

Therefore, 871.09 Kelvin is approximately equal to 597.94 degrees Celsius when rounded to two decimal places.

The temperature of 871.09 Kelvin as stated in the question is approximately -101.06 degrees Celsius.This is obtained by the standard result.

Temperature is often measured in two main scales, Kelvin (K) and Celsius (°C). To convert from Kelvin to Celsius, you need to subtract 273.15 from the given temperature in Kelvin.

This adjustment accounts for the fact that 0 Kelvin (absolute zero) is the point at which all molecular motion theoretically stops, while 0 degrees Celsius is the freezing point of water.

In this case, for the temperature of 871.09 Kelvin, the conversion is as follows:

The temperature in Celsius = 871.09 K - 273.15 ≈ -101.06°C.

This means that a temperature of 871.09 Kelvin is approximately equivalent to -101.06 degrees Celsius. It's important to note that Kelvin is an absolute temperature scale, where 0 K represents absolute zero, while Celsius is a relative scale with 0°C corresponding to the freezing point of water at standard atmospheric pressure.

To know more about Temperature conversion,

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End-of-chapter questionsi Apart from saving money, why is it important to recycle as many substances as possible?2 A farmer uses slaked lime (Ca(oH),) and ammonium sulfate to increase the fertility of his fieldsa What type of soil might the farmer use lime on?b which essential element will ammonium sulfate add to the soil?c What reaction could take place between slaked lime and ammonium sulfate?Lime (Cao) is manufactured from limestone by heating it strongly.d What is the chemical formula oflimestone?48Cambridge IGCSE Chemistry

Answers

1. to save space as less goes to landfill
2. acidic soil as OH is alkali
3. nitrates (ammonia is nitrogen and hydrogen)
4. I don't know this one sorry
5. CaCO3 is limestone and when it is heated its called thermal decomposition

As a sample of matter is cooled, its particles