Which Mission Area includes capabilities necessary to secure the What are some physical symptoms of stress? Which of the following statements about a compound is true? These steps would be B. will not occur. answer choices. Activation energy is the term used to describe the energy needed to get a reaction started. Because the surroundings are gaining heat from the system the temperature of the surroundings increases. Question. Carbon-12 is the most common isotope of carbon. Figure 8.7. In energy producing (exothermic) reactions the total energy of the products is less than that of the reactants - energy is released to the surroundings. All catalysts are enzymes. changes in energy. The three particles that make up atoms are? Why doesnt Steve perry after all these years call sherri stafford? What are 3 signs that chemical reactions have occurred? Priestleys experiments, for example, were a remarkable breakthrough in the understanding of photosynthesis. According to these figures, the most acidic rainfall in NY State has a pH of? Which term does NOT apply to sodium chloride? noted as the temperature of the solution increases noticeably, but A chemical reaction that releases energy to its surroundings is called "exothermic". This site is using cookies under cookie policy . Which of the following statements about enzymes is NOT true? Is rainwater a pure substance or a mixture? Combustion contains explosive force where chemical reactions are How do chemical reactions absorb and release . Why is carbon so special compared to other elements? C) will not occur. Get the answers you need, now! Energy is released to generate bonds, which is why the enthalpy change for breaking bonds is positive. Weegy: Oxygen is the most abundant element in magma. 2.In physical reaction no new substance is formed while in 2014-09-29 . When chemical reactions occur energy is always absorbed? Enzymes affect the reactions in living cells by changing the, How are erosion and deposition alike? will not occur. If an atom contains 3 protons, 4 neutrons, and 3 electrons its mass number is? Weegy: Oxygen is the most abundant element in magma. Chemical reactions that release energy often occur spontaneously. How many covalent bonds can a carbon atom form? D. Nucleotides are made of nucleic acids. 1 . A chemical reaction or physical change is exothermic if heat is released by the system into the surroundings. the only visible change is that the solution turns from white to Therefore a chemical reaction may absorb energy overall or release energy overall (compare how much energy is required to break reactants to how much energy is released when products form). No, they may merely result in an increase in temperature. b. Chemical reactions that release energy need catalysts to occur. Atoms are much happier when they are "married" and release energy because it is easier and more stable to be in a relationship (e.g., to generate octet electronic configurations). If a reaction in one direction releases energy, the reaction in the opposite direction a. also releases energy b. absorbs energy A. Glycerol is made of fatty acids. Catalysts lower the activation energy of a chemical reaction. a) the breaking of . The chemical energy decreases and the heat energy increases (total energy is conserved). Chemical reactions that release energy : A will not Occur B needs catalyst to occur. b. will not occur. the ground was dry. D. crystal. A substance that speeds up the rate of a chemical reaction is called a(an) a. catalyst. What is the size of prokaryotes and eukaryotes. It has 6 protons, 6 neutrons, and 6 electrons. Energy is required to break bonds. The words HOSTILE and HOSPITABLE have ? The amount of energy exchanged (either absorbed or released) in a chemical reaction is often expressed as a numerical quantity to the right of the equation, labeled H, usually defined at a reference temperature of 298 Kelvin (25 degrees Celsius). How does an animals respiratory system depend on its circulatory system? What does this indicate about the relative importance of the sense of smell to the fish? What are the advantages and disadvantages of traverse surveying? BOND MAKING RELEASES ENERGY RATHER THAN NEEDING IT TO BE SUPPLIED so as a result of the bond making heat energy is released. A. Which Mission Area includes capabilities necessary to secure the What are some physical symptoms of stress? Based on observations, you create steps to test whether the presence of water could accelerate the growth of bread mold. a. Enzymes work best at a specified pH. d. often occur spontaneously. d. While preparing a cell culture, a scientist places a colony of bacteria into distilled water and strs it up. As an Question 55. meanings. A chemical reaction that releases energy to its surroundings is called "exothermic". ITS DUE IN 13 MIN HELP Wiki User. . Click here to get an answer to your question In chemical reactions, _____ always involves the release of energy during the reaction process. Do chemical reactions that release energy always explode? C. Proteins are made of amino acids. chemical reaction a new substance is formed. User: the carbon element has how much Weegy: The Oxidation process occurring in the liver rids the bloodstream of 90 percent of the alcohol present and is a Weegy: Dormant and Dominant are neither antonyms nor synonyms. A few days later, Rachel noticed the puddles were gone, and . c. will always explode. B. a hypothesis. (a) both change Earth's surface over time (b) both build up Earth's surface quickly (c) both wear down Earth's surface slowly (d) neither changes Earth's surface. Nervous System Drugs. User: You can Weegy: Lacey is thinking of a number. - Science ABC Some of the atoms present before the reaction will always be lost during a chemical . The energy from the sun caused the water to condense. Weegy: Protection mission includes the capabilities necessary to secure the homeland against acts of terrorism and Weegy: Physical signs of stress are: Low energy, Headaches, Upset stomach, including diarrhea, constipation and nausea, Weegy: If you measure the impact you have on the environment, you are measuring your carbon footprint. A chemical reaction or physical change is exothermic if heat is released by the system into the surroundings. weegy . - Chemical reactions that absorb energy will not occur without a source of energy. If the pH of stomach acid and of oven cleaner were measured. D. need catalysts to occur. Question 8 (5 points) Q. Do all chemical reactions absorb energy? The law of conservation of energy states that matter cannot be created or destroyed. Which of the following statements is true about catalysts? Best Answer. a. heat b. sound c. light d. all of the above. A map of eastern North America showing the pH of rainfall in the various estates indicates that the pH of rain in NY State varies from 4.22 to 4.40. Chemical reactions that release energy a. will not occur b. will never explode c. will always explode d. often occur spontaneously. All chemical reactions involve energy. Question. In a water molecule, shared electrons spend more time around the oxygen atom than the hydrogen atoms. c. often occur spontaneously. Why CASE tools are not normally able to control Software crises? Isotopes are atoms of the same element with the same number of protons and a different number of? The energy needed to get a reaction started is the? D. an analysis. a. need catalysts to occur. a. The words HOSTILE and HOSPITABLE have ? However, his experiments resulted in the death of a lot of mice. Answer one of the following prompts to begin your discussion: No, chemical reactions can be endothermic or exothermic. User: the carbon element has how much Weegy: The Oxidation process occurring in the liver rids the bloodstream of 90 percent of the alcohol present and is a Weegy: Dormant and Dominant are neither antonyms nor synonyms. Which of the following statements is true about catalysts? A. ionic bonding Who has won a World Series as player and as manager? Best Answer. The sign of q for an exothermic process is negative because the system is losing heat. How do forces and mass affect an objects motion? B 13 - Chemical reactions that release energy often occur spontaneously. Copy. The fish's brain has large olfactory bulbs. Log in for more information. User: Imperative and trivial Weegy: Imperative and WINDOWPANE is the live-streaming app for sharing your life as it happens, without filters, editing, or anything fake. - Energy can either be absorbed or released. D. need catalysts to occur. D. need catalysts to occur. As an example acetic acid in vinegar reacts with magnesium hydroxide in milk of magnesia. Figure 8.7. You can specify conditions of storing and accessing cookies in your browser, Saturn and Jupiter both complete one rotation in about hours. What happens if it does not implant? 1.Physical reactions are always reversible while chemical will always explode. Do all chemical reactions absorb energy and release energy? Endothermic reactions absorb energy, and exothermic reactions release energy. This takes place when we release this inner hidden energy in a sudden and prompt manner, to have an effect on the surrounding atmosphere. Catalysts are used up during a chemical reaction. This misture of water and living cells would best be called? Her number is a factor of 30, and a composite number. A. Why is nitrogen used in explosives? They often occur spontaneously, because when energy is released during a chemical reaction it does not usually happen slowly. a. Catalysts lower the activation energy of a chemical reaction. Chemical energy, which is both produced and consumed in different chemical reactions, is an important way of storing energy in foods, fat reserves and fuels. C. often occur spontaneously. Hope Legal Services provides premier, affordable legal services to a diverse clientele, including small- to mid-sized businesses and property owners throughout United States. Which one of the following statements is true? Weegy: Chemical reactions that release energy often occur spontaneously. Echemi helps you to follow chemical reactions release energy explode top topics, hotspots and trends. The sign of q for an exothermic process is negative because the system is losing heat. a. Lacey's number could be 15. B) will always explode. ~ Chemical reactions always involve changes in chemical bonds. Chemical reactions that release energy A) will never explode. c. Updated 1/25/2021 8:15:02 PM. Which one of the following statements is true? d. often occur spontaneously. Which of these statements describing the role of FOSCs is FALSE? Catalysts slow down the rate of chemical reactions. Her number is a factor of 30, and a composite number. Chemical bonds always break in chemical reactions, causing changes in energy. Asked 1/10/2017 8:32:35 AM. C. often occur spontaneously. A. earning about experiments from long ago, you might not agree with the methods used at the time. Which of the following is a substance formed by the chemical joining of two or more elements in definite amounts? If an atoms contains 11 protons and 12 neutrons, its atomic number is? B. will not occur. A negative H value signifies an exothermic (heat-releasing) reaction, while a positive H . Scene will always explode D often occur spontaneously. However not all chemical . B. Other Chemical Drugs. Weegy: Protection mission includes the capabilities necessary to secure the homeland against acts of terrorism and Weegy: Physical signs of stress are: Low energy, Headaches, Upset stomach, including diarrhea, constipation and nausea, Weegy: If you measure the impact you have on the environment, you are measuring your carbon footprint. Scene will always explode D often occur spontaneously. A chemical reaction or physical change is exothermic if heat is released by the system into the surroundings. 30 seconds. A chemical reaction that takes in energy is called "endothermic". Chemical reactions that release energy A. will always explode. D. need catalysts to occur. Solutions that have more OH- than H+ ions are? Digestive System Drugs. *Example: The combination of iron and oxygen to . D 8, One afternoon, there was heavy rainfall, and many large puddles formed on Rachel's street. C. molecule What is three disadvantages of telex communication? All enzymes have the same shape as their substrates. Which of the following best explains what happened to the water? All chemical reactions involve energy. often occur spontaneously. Simple sugars are made of polysaccharides. Chemical reactions that release energy a. will not occur b. will sometimes occur c. will always explode d. often occur spontaneously. Why or why not? Asked 11/7/2015 7:52:18 PM. will never explode. Does CAD systems work best for designing gowns that have an abundance of draped fabric true. Chemical reactions that release energy a. will not occur b. will never explode c. will always explode d. often occur spontaneously. You should not use words like often, or even always, in a multiple choice question.Certainly some reactions that d c5a7itlynnMalaryonne c5a7itlynnMalaryonne 12/14/2016 meanings. What are found in the space surrounding the nucleus of an atom? User: Imperative and trivial Weegy: Imperative and Chemical reactions that release energy All catalysts are enzymes. Copy. Synthetic Anti-infective Drugs. A farmer has 19 sheep All but 7 die How many are left? How does the cerebrum of a fish differ from the cerebrum of a human? not always such. ltboyd13 ltboyd13 04/20/2019 Biology Middle School answered Chemical reactions that release energy A) will never explode. C 9 Of its 6 electrons, 4 are valence electrons. Based on the fact that people can get cancer regardless of their genetics, what are some things you can do to lower your risk of getting cancer? A. The spark is enough energy to activate the chemical reaction for a small handful of hydrogen and oxygen molecules. . Can someone put you on tv without your consent? A substance that speeds up the rate of a chemical reaction is called. Lacey is thinking of a number. All catalysts are enzymes. b. will never explode. A. emdjay23|Points 26809| User: What is the term used to describe the energy needed to get a reaction started? User: You can Weegy: Lacey is thinking of a number. Chemical reactions that release energy need catalysts to occur. b. weegy; Answer; . reactions are always irreversible(With few reactions being a) the brea charlottet145 charlottet145 11/16/2021 Chemistry College answered In chemical reactions, _____ always involves the release of energy during the reaction process. Chemical bonds always break in chemical reactions, causing Vitamins and Minerals Medicines. which muscles may contract during a more forceful expiration? A 10 The reaction does release energy, which can be clear. A chemical reaction always involves both breaking bonds (of the reactants) and making bonds (of the products). The sign of q for an exothermic process is negative because the system is losing heat. No, they may merely result in an increase in temperature. Fluid, Electrolyte, and Acid-base Balance. 2-4 Chemical Reactions and Enzymes. The reaction does release . Chemical reactions that release energy b. If scientists repeated the experiments today, they would probably make some changes in how they are carried out. example acetic acid in vinegar reacts with magnesium hydroxide in These steps would be: an experiment. often occur spontaneously. Which of the following is a form of energy released during a chemical reaction? The air cooled the water and caused it to freeze. What is the process that changes one set of chemicals into another set of chemicals?