Which substance yields H+(aq)as the only positive ion in an aqueous solution

Answers

Answer 1

Answer: According to the Bronsted-Lowry Theory, that is an Acid.

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The scattering of light by a colloid is called the Brownian lighting, Tyndall effect, colloidal scattering, or aggregate reflection.
What principle do Tesla coils use to generate electricity?

Endorphins are generated in the body during exercise, which leads to better emotional health. Please select the best answer from the choices provided.a. True
b. False

Answers

Answer: Yes the statement is true.

Explanation: Endorphins are chemicals produced by the human bodies to relieve stress and pain.

They are produced mainly by brain and help to transmit electrical signals within nervous system, thus are called as neurotransmitters.

They are also called as "feel good chemicals" as they can act as pain relievers and happiness booster and thus lead to better emotional health.

Endorphins are generated in the body during exercise, which leads to better emotional health. This statement is TRUE.

Further explanation

Endorphins are chemicals produced by the body to relieve stress and pain. This chemical works similarly to a class of drugs called opioid. But because endorphins release naturally by the body it is a safer way to relieve stress and pain.

Exercise boosted mood and powerful depression fighter for several reasons. Through exercise, you are not only gain your physical fitness but it also gives you an enormous sense of well being. You feel more energetic, positive, sleep well and have better memory. Exercise can also serve as a distraction from negative thoughts and activities that feed depression.

Regular exercise is important to maintain a healthy body and mind. The recommended amount and intensity of physical activity varies according to ages and health condition. For an adult, the recommended time is 150 minutes per week for a moderate-intensity activity or 75 minutes per week for vigorous-intensity activity, or a combination of these two activities. You can break this into 25 minutes a day for 3 days a week.

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Aerobic exercise and endorphins brainly.com/question/4349107

Endorphins brainly.com/question/890846

Regular exercise brainly.com/question/3122325

Keywords: endorphins, regular exercises, stress, and anxiety reliever

Two substances, A and Z, are to be identified. Substance A can not be broken down by a chemical change. Substance Z can be broken down by a chemical change. What can be concluded about these substances?(1) Both substances are elements.
(2) Both substances are compounds.
(3) Substance A is an element and substance Z is a compound.
(4) Substance A is a compound and substance Z is an element.

Answers

Answer;

(3) Substance A is an element and substance Z is a compound.

Explanation;

-A compound is a substance formed when two or more chemical elements are chemically bonded together, such as water, carbon dioxide, methane, etc while an element is a pure chemical substance made of same type of atoms, such includes, oxygen, potassium, hydrogen, carbon, etc.

- Compounds can be brokendown or decomposed into simpler substances: elements cannot be broken down chemically into simpler substances .

The answer is (3) Substance A is an element and Z is a compound. The chemical reaction can only break the chemical bond but can not change the atom. So A will is an element.

Which is NOT an element that must be present for a fire to occur?a. heat
c. hydrogen
b. fuel
d. oxygen

Answers

Fuel is NOT an element that must be present for a fire to occur. Hence, option C is correct.

What is fuel?

The substances which on burning produce heat energy are called fuels.

The 3 things a fire needs are heat, fuel and oxygen.

These three elements work together to help a fire start and take over.

However, if any of the three elements are removed from a fire, then it will extinguish and no longer pose a threat.

Hence, option C is correct.

Learn more about fuel here:

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Hi There

The answer is C

I hope that's help !

What is the temperature of the oceanic crust?

Answers

The temperature of the oceanic crust increases with depth, reaching values typically in the range from about 500 °C(900 °F) to 1,000 °C (1,800 °F) at the boundary with the underlying mantle.

Which of these is a chemical property of iron? A.
It is dense.
B.
It has a melting point.
C.
It is hard to bend.
D.
It becomes rusted.

Answers

Iron becomes rusted especially in damp air but never in a dry air, this is one of the many unique characteristics of iron. Iron is also ductile and malleable. It is found in the seventh group of the periodic table. It has four different and unique crystalline forms and completely dissolves in dilute acids. The two chemical compounds that can be found or made from iron are the bivalent iron also known as ferrous and the trivalent iron or known as ferric compounds.

the answer is d.it becomes rusted

The main energy products currently being obtained from the ocean floor are oil and _____.

Answers

The main energy products currently being obtained from the ocean floor are oil and natural gas. Both oil and natural gas are resources that are found naturally on Earth. They are both also comprised of hydrocarbons, meaning carbon and hydrogen. The difference lies in their natural physical state. Oil is a liquid, while natural gas is a gas/vapor.

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select all the correct answers. Which conditions are required for nuclear fusion to begin? The gas cloud must be very dense. Gravitational attraction must stop. Atoms must be stripped of their electrons. Helium atoms must break down into hydrogen. Temperatures must exceed 14 million Kelvin.

What hormone promotes active tubular secretion of potassium ions into, along with sodium absorption from, filtrate in the distal convoluted tubule (dct) and collecting ducts?

What is the % yield of CO2 if 10g of CO produces 12.8 g CO2? 2CO + O2 → 2CO2

Need Help with my Chemistry please!!Which of the following is not an outcome of acid rain?-altercation crust on marble statues-plant death due to nutrients becoming toxic-suffocation of fish-corrosion of metal surfacesWhich of the following materials is damaged by acid rain?-quartz-marble-aluminum-glassThe ozone layer absorbs most of the incoming ____ radiation.-infrared-X-ray-ultraviolet-radio Thank you very much~!!