According to Bohr's model, what can be said of the amount of energy that an electron absorbs when it is excited compared to the amount of energy that it releases when it returns to ground state?A. The amount of energy that is absorbed is greater than the amount of energy that is released.

B. The amount of energy that is absorbed is the same as the amount of energy that is released.

C. The amount of energy that is absorbed is less than the amount of energy that is released.

Answers

Answer 1

Answer: letter b. because energy can't be created nor destroyed

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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.

Answers

Answer: Option (D) is the correct answer.

Explanation:

The acetic acid, $(CH_(3)COOH)$ present in vinegar reacts wit magnesium and therefore, it releases hydrogen gas and magnesium acetate.

The chemical reaction will be as follows.

$2CH_(3)COOH + 2Mg \rightarrow 2Mg(CH_(3)COO) + H_(2)$

An acid is a substance which has pH less than 7 and changes blue litmus red. Acids taste sour as they are acidic in nature and releases hydrogen ions.

Whereas bases have pH greater than 7 and changes red litmus into blue.Bases taste bitter and releases hydroxide ions.

Thus, we can conclude that the statement it reacts with Mg to produce $H_(2)$ best describes the acid found in vinegar (acetic acid).

Answer:

D. It reacts with Mg to produce H2.

How does a Geiger counter measure radiation levels

Answers

The Geiger counter measure radiation through the means of detecting alpha particles, beta particles and gamma rays. It uses an ionization effect produced by the Geiger-Muller tube as well. This is the most prominent tool used for radiation measurement.

Answer:

D- Radiation knocks electrons out of gas atoms, which allows the gas to conduct an electric current.

Explanation:

Edge 2021

What volume of a 5.0% (v/v) Acetic Acid solution will contain 40.mL of Acetic Acid?

Answers

5.0% ( V/V) :

5.0 mL ------------- 100 mL ( solution )
40 mL --------------- ? ( solution )

V = 40 . 100 / 5.0

V = 4000 / 5.0

V = 800 mL

hope this helps!

Many of water's emergent properties, such as its cohesion, its high specific heat, and its high heat of vaporization, result from the fact that water molecules _____. a) tend to repel each other.b) are very small.
c) are in constant motion.
d) are extremely large.
e) are electrically attracted to each other.

Answers

Answer: are electrically attracted to each other

Explanation:Water molecules are attracted to each other by partial negative and positive charges on the oxygen and hydrogen atoms, respectively

The water molecules are electrically attracted to each other tend to repel because they want to move freely

What is a balanced equation for the neutralization of these two compounds? HCl
Ca(OH)2

Answers

In order to balance this, you have to count each element where the elements in the reactants side and the product side should have equal number of molecules. The balanced reaction is as follows:

2HCl + Ca(OH)2 = CaCl2 + 2H2O

The electrons used in bonding are known as a. bonding electrons
b. proton
c. neutron
d.moron

Answers

Answer:

bonding electron

Explanation:

because they will bond together.

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