CHEMISTRY HIGH SCHOOL

What’s the easiest way to add energy to matter

Answers

Answer 1
Answer:

Answer:

The easiest way is to heat matter which raises its internal energy andso the mass as well. Another possibility is to accelerate matter as in case of protons or heavy ions in the LHC, Protons ,for example , are accelerated to the energies of 6500 GeV which means increase of the rest mass by a factor of almost 7000

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What is the best way to learn measurements and how to add and multipy them​

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Answer:

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Explanation:

WILL MARK BRAINIESTIf the molecules of two different substances have a similar size but the molecules of one substance are polar while the molecules of the other substance are nonpolar, what is most likely true about the substances?
A The polar substance has a lower boiling point than the nonpolar substance.
BThe nonpolar substance has a lower boiling point than the polar substance.
C Both substances have similar volatilities.
DBoth substances have similar solubilities.

Answers

Answer:

  • The correct option is B. The nonpolar substance has a lower boiling point than the polar substance.

Explanation:

  • Substances with hydrogen bonding, an intermolecular force, will have much higher  boiling points than those that have ordinary dipole-dipole intramolecular forces. Non-polar molecules have lower boiling points, because they are held together by the weak van der Waals forces.

Note

  • However, if size of non polar increases, then its boiling point increases due to increases in van der walls forces with large size.
The correct answer is letter B: the non polar substance has a lower boiling point than the polar substance.

the titration of 80.0 ml of an unknown concentration phophorice acid solution requires 252 ml of 0.218 m potassium hydroxide solution. what is the concentration of the phosphoric acid solution (in mi?

Answers

The concentration of the phosphoric acid solution required for the titration of 252 ml of 0.218 M potassium hydroxide solution is 0.2289 M.

To determine the concentration of the phosphoric acid solution, we can use the titration equation:

mole of acid = moles of base

Phosphoric acid (H3PO₄) reacts with potassium hydroxide (KOH) in a 1:3 ratio:

H₃PO₄ + 3KOH → 3H2O + K₃PO₄

Now, we can calculate the moles of KOH using its volume and concentration:

moles_KOH = volume_KOH × concentration_KOH
moles_KOH = 0.252 L × 0.218 M
moles_KOH = 0.054936 mol

Since H3PO4 reacts with 3 moles of KOH:

moles of H₃PO₄ = moles KOH / 3
moles of H₃PO₄ = 0.054936 mol / 3
moles of H₃PO₄ = 0.018312 mol

Now, we can determine the concentration of H3PO₄:

concentration of H₃PO₄ = moles_H3PO4 / volume_H₃PO₄
concentration of H₃PO₄ = 0.018312 mol / 0.080 L
concentration of H₃PO₄ = 0.2289 M

So, the concentration of the phosphoric acid solution is approximately 0.2289 M.

Learn more about the titration : brainly.com/question/186765

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There is a correlation between algae height and the snout-to-vent length of a group of marine iguanas in the Galapagos; as algae height increases for a given island, so does iguana length. Why would the body size of this population of iguanas correlate with algae height?Differential reproduction of larger animals is favored when adequate nutrition is supplied by larger algae.
Increased variation in animal size is favored when large plant species are present in a healthy ecosystem.
Overproduction of smaller animals is favored when algae swards are short and vice versa when algae swards are long.
Traits are exchanged between iguana and algae populations so that taller algae result in larger iguana populations

Answers

Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.

The body size of this population of iguanas correlate with algae height because Traits are exchanged between iguana and algae populations so that taller algae result in larger iguana populations

Answer;

The correct answer would be Differential reproduction of larger animals is favored when adequate nutrition is supplied by larger algae.

The size of the food influences the size of the organism.

Due to availability of larger food or larger algae, longer iguanas tend to live and survive more.

Thus, the tend to survive and reproduce more as compared to the shorter iguanas.

Similarly, when algae or food is not available, then larger iguanas die due to malnutrition and shorter iguanas tend to survive.

What energy resource can be used instead of fossil fuel

Answers

We could use solar power, wind power, geothermal power, hydroelectric power, or nuclear power. There are probably more but this is what I can think of off the top of my head. I hope this helps. Let me know if anything is unclear.

Which of the questions would involve the investigation of kinetic energy?A. What material makes the strongest boat?

B. How does the color of a boat affect heat absorption?

C. Do boats float higher in salt or fresh water?

D. What is the effect of a boat’s shape on its speed?

Answers

Answer:

D. What is the effect of a boat’s shape on its speed?

Explanation:

Kinetic energy can be defined as the energy possessed by an object or body due to its motion. It is the amount of work required to accelerate an object or body with a specific mass from its point of initial rest to a final velocity.

Mathematically, kinetic energy (K.E) is equal to 1/2(mv²).

Hence, the question which would involve the investigation of kinetic energy is "what is the effect of a boat’s shape on its speed?" because speed is directly related to the motion of the boat. Generally, the shape of the hull of a boat has an effect on the speed of the boat.

Answer:

What is the effect of a boat’s shape on its speed?
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