Why do cats purr when they are happy?

Answers

Answer 1

Answer: cats use the ability to purr for more than just that they use it when they are frightened, when they want other cats to know that they are friendly,and when its mealtime. but if your asking how they purr its just something in there brain telling them to purr.

Related Questions

Write the balanced equation for the reaction given below: C2H6 + O2 --> CO2 + H2O. If 16.4 L of C2H6 reacts with 0.980 mol of O2, how many liters of carbon dioxide gas will be produced? What is the limiting reagent? How many oxygen atoms will be in this sample of carbon dioxide? How many moles of the excess reactant will be left over? How many grams of the excess reactant will be left over?
Discuss the function of a buffer. How will pH change when small amounts of acids or bases are added to the buffer solution?
Show the formulas of the reactants
What is the total number of electrons in a Cu+ ion?(1) 28 (3) 30(2) 29 (4) 36
What is true about blood alcohol concentration?

Which best represents the law of conservation of mass?

Answers

states that mass is an isolated system is neither created nor destroyed by chemical reactions or physical transformations

Answer: c) mass reactants = mass of products

Explanation:

A solution with a ph of 11 is first tested with phenolpthalein

Answers

A solution with a ph of 11 is first tested with phenolpthalein. The phenolphthalein indicator will turn pink because a phenolphthalein indicator only reacts with basic solutions.

Which ion was fomed by providing the second ionization to remove an electron A) ca2+ B)N3- B)Fe3+ C)S2

Answers

The ion that is formed by providing the second ionization to remove an electron is N3-. The answer is letter B. The rest of the choices do not answer the question above.

Answer:

A.) CA2+

Explanation:

edge 2021

Which substance is an electrolyte?
(1) CH3OH (3) H2O
(2) C6H12O6 (4) KOH

Answers

Answer:

The answer is 4) KOH

Explanation:

Electrolytes are substances which ionize when dissolved in water. They are classified as:

Strong electrolyte: Which completely ionize when in water. Eg: NAOH, KOH (produces K+ and OH- ions when dissolved in water)

Weak electrolyte: partially ionize when in water. Eg: Acetic acid

Non-electrolyte: Do not ionize at all in water. Eg: Alcohols such CH3OH, sugars such as glucose (C6H12O6).

KOH is an electrolyte. Therefore, option (4) is correct.

Electricity flows via water-dissolved materials. Ions in a solution conduct electricity.The options:When dissolved in water, methanol (CH3OH) does not form ions.2. C6H12O6 (Glucose): It does not dissolve into ions in water, hence it is not an electrolyte.

Water doesn't dissolve into ions, hence it's not an electrolyte.4. Dissolved in water, potassium hydroxide (KOH) forms ions (K+ and OH-), making it an electrolyte. Therefore, KOH as an electrolyte is the correct option.

Learn more about electrolytes, here:

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Are the following Mineral or Ore?

Answers

Answer:

1.Mineral

2.Ore

Explanation:

Different elements are most likely to react in similar ways when they

Answers

The elements that has been belonging to the same group have been able to react in similar ways.

The reactivity of the elements has been based on the presence of the valenceelectrons. The elements that has been belonging to the same group have consisted of the same number of valence electrons with the increase in the number of shells moving from left to right.

Thus, the elements that have been belonging to the same group have consisted of the same reactive properties.

For more information about different elements, refer to the link:

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Answer:

Belong to the same group.

Explanation:

Different elements are most likely to react in similar ways when they belong to the same group.

This is because the elements in the same group always have similar number of valence electrons which implies that they all have the same number of electrons in their outermost shell. For example,barium (Ba), beryllium (Be), calcium (Ca), magnesium (Mg), radium (Ra), strontium (Sr) all have 2 electrons in their outermost shell and thus they belong to group 2 of elements which are known as Alkaline earth metals and they all tend to react in the same manner with other substances

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Select the correct answer. Which statement describes the acid found in vinegar (acetic acid)? A. It tastes bitter. B. It feels slippery. C. It changes red litmus paper to blue. D. It reacts with Mg to produce H2. E. It releases OH- in a solution.