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Lunna [17]
4 years ago
5

Which hypothesis most likely inspired Leeuwenhoek's experimentation with new technology? If the amount of magnification is corre

ct, then an individual germ can be seen, because individual germs exist but are too small for human eyes. If the amount of magnification is correct, then wounds can be kept clean of germs, because wounds are often infected during surgery. If the correct medicine is used, then a certain disease can be cured, because different diseases are caused by different germs. If the correct medicine is used, then germs can be grown until they are large enough to see, because most germs are too small to see in nature.
Chemistry
1 answer:
Serjik [45]4 years ago
3 0

Answer:

If the amount of magnification is correct, then an individual germ can be seen, because individual germs exist but are too small for human eyes.

Explanation:

<em>Leeuwenhoek was the first scientists to experiment with microorganisms using a self-designed single-lens microscope. He described the tiny organisms as 'animacules'. He is known for his pioneer work in the design of the first microscope.</em>

The microscope works by magnifying objects placed on the stage. Germs are microbes that cannot be seen with ordinary eye unless they are magnified appropriately. They are virtually everywhere, including the parts of the world where humans cannot survive.

Hence, the only correct option which most likely inspired Leeuwenhoek's experimentation with technology is the first option. The remaining options are deficient in some ways.

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a chemist is studying an unknown substance he can break it into its elemental only by using chemical means.Based on this observa
Vanyuwa [196]

Answer:

Compound

Explanation:

We want to know if it's a compound or a mixture.

An example of a mixture is salt water: you can heat it hot enough to boil off the water, leaving only the salt. This is a physical change, which is how you know it's a mixture.

Something like gold is a compound: if you heat it, or hit it, you'll still only have gold. You can only break it down by chemical means, which is how you know it's a compound.

4 0
3 years ago
When the enthalpy of the reaction is provided, it is always in the context of moles; i.e., ΔHrxn=+252.8 kJ when two moles of CH3
Morgarella [4.7K]

<u>Answer:</u> The balanced chemical equation is written below.

<u>Explanation:</u>

There are 2 types of chemical reaction classified on the basis of heat change:

  • <u>Endothermic reactions </u>: They are the reactions in which energy of products is more than the energy of the reactants. For these reactions, energy is absorbed by the system. The \Delta H comes out to be positive and is written on the reactants side.
  • <u>Exothermic reactions:</u> They are the reactions in which energy of reactants is more than the energy of the products. For these reactions, energy is released by the system. The \Delta H comes out to be negative and is written on the product side.

We are given:

Moles of methanol = 2 moles

Moles of methane = 2 moles

Moles of oxygen gas = 1 mole

\Delta H_{rxn}=+252.8kJ

The chemical equation follows:

2CH_3OH+252.8kJ\rightarrow 2CH_4+O_2

Hence, the balanced chemical equation is written above.

4 0
3 years ago
You find a clear gem that is made of one substance. What could you do to
tankabanditka [31]

Answer:

You could have a scratch test, fog test, break test, theres many tests you could perform to see if it is a diamond.

Explanation:

7 0
3 years ago
Which factor causes a decrease in the rate of dissolution?
garik1379 [7]

Answer:

The correct option of the first option

Explanation:

Dissolution of a solute in a solution is the process in which the solute interacts with the solvent leading to the disappearance of the solute to form a solution. Rate of dissolution is primarily affected by three factors namely

<u>Stirring of the solution</u>: Stirring the solution causes the solute to interact more with the solvent, <u>thus increasing the rate of dissolution</u>.

<u>Surface area of the solute</u>: The smaller the surface area of the solute, the more easier it is for it (the solute) to interact with the solvent. Hence, <u>the smaller the surface area, the faster the rate of dissolution</u>.

<u>Temperature of the solvent</u>: An increase in temperature of the solvent <u>causes the generally causes more things to dissolve in this solvent</u> due to increased energy of molecules in the solvent, which causes the molecules of the solute and solvent to interact more.

A decrease in the amount of solute<u> will reduce the amount of interaction the solute (since it is in lesser quantity) have with the solvent hence the rate of dissolution will also be low (even though a solution will still be formed)</u>.

5 0
3 years ago
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Graphing is helpful because it gives us
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Graphing is helpful because it gives us B. A visual representation of the data
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