What is a chemical reaction that releases energy by light or heat?

What is a chemical reaction that releases energy by light or heat?
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All decomposition reaction are endothermic but decomposition of vegetable matter into compost is exothermic because (a) It is an oxidation reaction (b) decomposition done by microbes (c) releases heat energy (d) all the above

Description : All decomposition reaction are endothermic but decomposition of vegetable matter into compost is exothermic because (a) It is an oxidation reaction (b) decomposition done by microbes (c) releases heat energy (d) all the above

Last Answer : (d) all the above

$ Respiration is an endogenous reaction. ! Anaeroboic respiration releases more energy than aerobic respiration.

Description : $ Respiration is an endogenous reaction. ! Anaeroboic respiration releases more energy than aerobic respiration.

Last Answer : $ Respiration is an endogenous reaction. ! Anaeroboic respiration releases more energy than aerobic respiration. A. ... D. If both As and R are wrong.

Chlorofluorocarbon releases a chemical harmful to ozone:

Description : Chlorofluorocarbon releases a chemical harmful to ozone:

Last Answer : Chlorofluorocarbon releases a chemical harmful to ozone: A. Fluorine B. Chlorine C. Nitrogen peroxide D. Sulphure dioxide

What does condensation releases heat the land under the air gets?

Description : What does condensation releases heat the land under the air gets?

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What light house has a range of 63km and releases a flash every 30 seconds on the south African coast?

Description : What light house has a range of 63km and releases a flash every 30 seconds on the south African coast?

Last Answer : adrty

$ Respiration releases energy in the form of ATP ! Respiration in the presence of `O_(2)` is called Aerobic respiration.

Description : $ Respiration releases energy in the form of ATP ! Respiration in the presence of `O_(2)` is called Aerobic respiration.

Last Answer : $ Respiration releases energy in the form of ATP ! Respiration in the presence of `O_(2)` is called ... is wrong D. If both As and R are wrong.

What process releases energy from food in the presence of oxygen is?

Description : What process releases energy from food in the presence of oxygen is?

Last Answer : Need answer

What processes releases energy?

Description : What processes releases energy?

Last Answer : condensationA+ : )

What type of radioactive decay releases energy from the nucleus without a change of protons neutrons?

Description : What type of radioactive decay releases energy from the nucleus without a change of protons neutrons?

Last Answer : This is a gamma-decay.

What structure breaks down food and releases energy?

Description : What structure breaks down food and releases energy?

Last Answer : Feel Free to Answer

Is it true if you let air out of a bicycle tire the valve becomes cold. This is because when a gas under pressure expands it releases energy to the environment?

Description : Is it true if you let air out of a bicycle tire the valve becomes cold. This is because when a gas under pressure expands it releases energy to the environment?

Last Answer : Feel Free to Answer

What process occurs in the mitochondria that releases ATP energy?

Description : What process occurs in the mitochondria that releases ATP energy?

Last Answer : Need answer

During photosynthesis a plant uses energy from the sun to break apart glucose water and carbon dioxide. These molecules are used to make sugar to feed the plant and the plant then releases a by-product oxygen that humans breathe. this example shows that?

Description : During photosynthesis a plant uses energy from the sun to break apart glucose water and carbon dioxide. These molecules are used to make sugar to feed the plant and the plant then releases a by-product oxygen that humans breathe. this example shows that?

Last Answer : energy is not created but transferred to different forms (apex gang ;)

What is the best term to describe a chemical reaction that absorbs heat energy?

Description : What is the best term to describe a chemical reaction that absorbs heat energy?

Last Answer : What is the answer ?

An enzyme promotes a chemical reaction by (A) Lowering the energy of activation (B) Causing the release of heat which acts as a primer (C) Increasing molecular motion (D) Changing the free energy difference between substrate and product

Description : An enzyme promotes a chemical reaction by (A) Lowering the energy of activation (B) Causing the release of heat which acts as a primer (C) Increasing molecular motion (D) Changing the free energy difference between substrate and product

Last Answer : Answer : A

The role of a catalyst in a chemical reaction is to change the (A) Equilibrium constant (B) Activation energy (C) Final products (D) Heat of reaction

Description : The role of a catalyst in a chemical reaction is to change the (A) Equilibrium constant (B) Activation energy (C) Final products (D) Heat of reaction

Last Answer : (B) Activation energy

Catalytic action in a catalytic chemical reaction follows from the ability of catalyst to change the (A) Activation energy (B) Equilibrium constant (C) Heat of reaction (D) None of these

Description : Catalytic action in a catalytic chemical reaction follows from the ability of catalyst to change the (A) Activation energy (B) Equilibrium constant (C) Heat of reaction (D) None of these

Last Answer : (A) Activation energy

The energy of activation of a chemical reaction: (A) Is same as heat of reaction at constant pressure (B) Is the minimum energy which the molecules must have before the reaction can take place (C) Varies as fifth power of the temperature (D) Both (B) and (C)

Description : The energy of activation of a chemical reaction: (A) Is same as heat of reaction at constant pressure (B) Is the minimum energy which the molecules must have before the reaction can take place (C) Varies as fifth power of the temperature (D) Both (B) and (C)

Last Answer : (B) Is the minimum energy which the molecules must have before the reaction can take place

The catalyst in a first order chemical reaction changes the (A) Equilibrium constant(B) Activation energy(C) Heat of formation of the product(D) Heat of reaction

Description : The catalyst in a first order chemical reaction changes the (A) Equilibrium constant (B) Activation energy (C) Heat of formation of the product (D) Heat of reaction

Last Answer : (B) Activation energy

What happens when a catalyst is added to a system at equilibrium? A The reaction follows an alternative pathway of lower activation energy. B The heat of reaction decreases. C The potential energy of the reactants decreases. D The potential energy of the products decreases. E The rate of chemical reaction decreases.

Description : What happens when a catalyst is added to a system at equilibrium? A The reaction follows an alternative pathway of lower activation energy. B The heat of reaction decreases. C The potential ... decreases. D The potential energy of the products decreases. E The rate of chemical reaction decreases.

Last Answer : A The reaction follows an alternative pathway of lower activation energy.

If a vending machine accidentally releases 2 of the item you paid for instead of one, is taking the second one considered theft?

Description : If a vending machine accidentally releases 2 of the item you paid for instead of one, is taking the second one considered theft?

Last Answer : It malfunctioned, you can't put it back. I don't see how it could be theft. Looks like it's buy one get one free. What happens just as often is you pay for something and it does not dispense ... have anyone to complain to most of the time so usually you end up losing your money. It all averages out.

What happens when someone releases your cell phone number?

Description : What happens when someone releases your cell phone number?

Last Answer : answer:If he dropped the service, it means it is about to go dead. If all he did was release the number, it means you can transport it to another carrier, or you can sign up for your own account with the same number. Ask him to please clarify.

Why do online TV networks require that we verify to watch the latest releases?

Description : Why do online TV networks require that we verify to watch the latest releases?

Last Answer : I’ve only seen this with channels that cost extra, such as HBO. They do this to be sure you are paying for the content and not using online as a way to get it without subscribing to their station.

Are records released as promotional copies worth more or less than the official releases?

Description : Are records released as promotional copies worth more or less than the official releases?

Last Answer : promo. but tricky, all about the timing and the market. ever collect baseball cards? remember supply and demand? If you have a hot band, limited promo release record = $$$. Hot band + tons of promo ... band limited or plentiful = $... its all about the legacy and the scareness of your product :)

How do Press Releases work?

Description : How do Press Releases work?

Last Answer : Press releases are generally sent to news publications that a business or PR agency thinks may be interested in running an article about the subject matter or including in a calendar or ... about press releases. The widespread use of social media has challenged the traditional press release.

Is there a service online that aggregates press releases based on keywords?

Description : Is there a service online that aggregates press releases based on keywords?

Last Answer : What about Google Alerts? Granted, it’s e-mail and not RSS, but if you were looking for relatively few of these announcements, I think this would be a better option than RSS, anyway. If you have to slog through hundreds a week, I think RSS would be better.

Is there a list of upcoming Blu-ray releases?

Description : Is there a list of upcoming Blu-ray releases?

Last Answer : answer:http://www.google.com/search?&q[equal]upcoming+blu-ray+releases http://www.google.com/search?&q[equal]magnolia+blu-ray+release http://www.google.com/search?q[equal]%22punch+drunk+love%22+blu-ray+release

Is it worth publishing press releases on your blog?

Description : I have a blog, and I get emails to publish press releases. The point is that those articles contain links to them, so basically an advertising article. If it was without links, I wouldn't have a problem ... but like this? What do you think?

Last Answer : If the site in question offers you advertising reciprocally (meaning that if you publish a link to ´none´, a link to your site will be published), why not ??? I would not do it unilaterally (or without any other interesting advantage), why ??

Jet aeroplanes releases pollutants in air called

Description : Jet aeroplanes releases pollutants in air called

Last Answer : Jet aeroplanes releases pollutants in air called A. smog B. photo-chemical oxidants C. Aerosols D. Algae and bacteria.

Cyclic photophosphorylation releases

Description : Cyclic photophosphorylation releases

Last Answer : Cyclic photophosphorylation releases A. ATP and `NADPH_(2)` B. ATP , `NADPH_(2) ` and oxygen C. ATP only D. `NADPH_(2)` only

Corpus luteum releases

Description : Corpus luteum releases

Last Answer : Corpus luteum releases A. Androgen B. Progesterone C. Estrogen D. Both B and C.

The phenomenon of tides releases ……………….. 

Description : The phenomenon of tides releases ……………….. 

Last Answer : Choose the correct option by identifying the correct correlation in the sentence: The phenomenon of ... forces (d) large amounts of resources

In a dry cell the carbon rod releases electrons and becomes what kind of terminal?

Description : In a dry cell the carbon rod releases electrons and becomes what kind of terminal?

Last Answer : Need answer

When rocks melt into magma it releases?

Description : When rocks melt into magma it releases?

Last Answer : Gases

What day of the menstrual cycle an egg releases?

Description : What day of the menstrual cycle an egg releases?

Last Answer : Feel Free to Answer

When an impulse reach the end of the axon the axon releases?

Description : When an impulse reach the end of the axon the axon releases?

Last Answer : Neurotransmitters to the synapse and the neurotransmitters bindwith the receptors releasing the second messengers.

What processes releases carbon dioxide into the atmosphere?

Description : What processes releases carbon dioxide into the atmosphere?

Last Answer : RespirationCombustionDecayWeatheringThe major human processes that release carbon dioxide are the burning of carbon fuels (wood, coal, oil, gas) and the cellular respiration of animals and plants. CO2 is ... all CO2 released annually. Natural processes in total account for 93% of all CO2 releases.

When water breaks apart it releases positively charged hydrogen ions and negatively charged ions?

Description : When water breaks apart it releases positively charged hydrogen ions and negatively charged ions?

Last Answer : Need answer

What happens to the balloon when david releases it?

Description : What happens to the balloon when david releases it?

Last Answer : Need answer

Is it true os false a plant releases oxygen into the ground through its roots?

Description : Is it true os false a plant releases oxygen into the ground through its roots?

Last Answer : Need answer

What shows that the formation of CO 2 releases 393.5 kJ mol?

Description : What shows that the formation of CO 2 releases 393.5 kJ mol?

Last Answer : C(s) + O2(g) + CO2(g) + 393.5 kJ

When calcium blood levels fall a gland in the body releases a special hormone?

Description : When calcium blood levels fall a gland in the body releases a special hormone?

Last Answer : This is not a question. What exactly do you want to know about this? Please re-ask so that people can help you with this statement.

Besides the liver which is the other adnexal gland of the digestive system that releases substances in the duodenum participating in extracellular digestion?

Description : Besides the liver which is the other adnexal gland of the digestive system that releases substances in the duodenum participating in extracellular digestion?

Last Answer : The other adnexal gland of the digestive system is the pancreas. This organ makes digestive enzymes that digest proteins (proteases), lipids (lipases) and carbohydrates (pancreatic amylases). ... and deoxyribonuclease are also secreted by the pancreas. Digestion System - Image Diversity: pancreas

Low voltage releases as used in some shipboard motor starter and control equipment will have which of the following characteristics? A. They trip circuit contactors when the motor starts to overspeed. B. They require manual resetting upon restoration of normal voltage. C. They use a phase sensitive relay to trip contacts in series with the holding coil of the starter. D. They allow the motor to restart upon restoration of normal voltage.

Description : Low voltage releases as used in some shipboard motor starter and control equipment will have which of the following characteristics? A. They trip circuit contactors when the motor starts to overspeed. B. ... coil of the starter. D. They allow the motor to restart upon restoration of normal voltage.

Last Answer : Answer: D

Waste incineration releases mainly

Description : Waste incineration releases mainly

Last Answer : carbon monoxide

When domestic sewage mixes with river water (a) small animals like rats will die after drinking river water (b) the increased microbial activity releases micronutrients such as iron (c) the increased microbial activity uses up dissolved oxygen (d) the river water is still suitable for drinking as impurities are only about 0.1%.

Description : When domestic sewage mixes with river water (a) small animals like rats will die after drinking  river water (b) the increased microbial activity releases  micronutrients such as iron (c) the increased ... (d) the river water is still suitable for drinking as  impurities are only about 0.1%.

Last Answer : (c) the increased microbial activity uses up  dissolved oxygen

How frequent can a professional accountants have press and other media releases commemorating their anniversaries in public practice by informing the public of their achievements or accomplishments in contributing toward nation building or enhancing the image or standards of the accounting profession? a. 2 years b. 3 years c. 5 years d. 6 years

Description : How frequent can a professional accountants have press and other media releases commemorating their anniversaries in public practice by informing the public of their achievements or accomplishments in contributing toward nation building ... profession? a. 2 years b. 3 years c. 5 years d. 6 years

Last Answer : 5 years

The posterior pituitary gland is not a ‘true’ endocrine gland because (a) it is provided with a duct (b) it only stores and releases hormones (c) it is under the regulation of hypothalamus (d) it secretes enzymes.

Description : The posterior pituitary gland is not a ‘true’ endocrine gland because (a) it is provided with a duct (b) it only stores and releases hormones (c) it is under the regulation of hypothalamus (d) it secretes enzymes.

Last Answer : (b) it only stores and releases hormones

How does pruning help in making the hedge dense? (a) It releases wound hormones. (b) It induces the differentiation of new shoots from the rootstock. (c) It frees axillary buds from apical dominance. (d) The apical shoot grows faster after pruning

Description : How does pruning help in making the hedge dense? (a) It releases wound hormones. (b) It induces the differentiation of new shoots from the rootstock. (c) It frees axillary buds from apical dominance. (d) The apical shoot grows faster after pruning

Last Answer : (c) It frees axillary buds from apical dominance.