10. The rearrangement of atoms constitutes a chemical reaction, although some phase changes can also qualify. The reactants are what are "reacting". Clearly two of these can be eliminated. Which statement correctly describes a chemical reaction?O Reactants come out of a reaction.O Energy is always released.O Bonds between atoms break and new bonds form.O Products go into a reaction. Which statement best describes how a catalyst can speed up a chemical reaction? Which statement describes a chemical reaction at equilibrium? Which statement correctly describes what transpires during a chemical reaction? Some reactions appear to be “substitution” of an alkene, but in fact, is the result of an “addition-elimination” sequence of reactions. Aug 2002-13 Which statement correctly describes a chemical reaction at equilibrium? The forward reaction happens slightly faster than the reverse reaction. Which best describes a chemical reaction? or D. The products have lower potential energy … a) Reactant molecules and product molecules have the same velocity. Chemical reactions are an integral part of technology, of culture, and indeed of life itself.Burning fuels, smelting iron, making glass and pottery, brewing beer, and making wine and cheese are among many examples of activities incorporating chemical reactions that have been known and used for thousands of years. B. 3.they affect the rate of chemical reactions. A. The catalyst increases the concentration of reactants. The catalyst increases the concentration of products. Please put the number of the answer i … The products don't react. the rearrangement of atoms by breaking and reforming chemical bonds a reaction that absorbs heat from the surroundings a reaction that releases heat to the surroundings the rearrangement of molecules based on temperature and pressure B. They decolourises bromine water. Which statement best describes evidence that a chemical reaction occurs as a cake bakes?A The water in the cake evaporates.B The cake rises as gas bubbles form in the baking cake.C The cake takes the shape of the container in which it is baked.D The water in the cake batter is used to keep the C. The products have lower potential energy than the reactants, and the ΔH is negative. The products have higher potential energy than the reactants, and the ΔH is negative. Which statement describes a chemical reaction at equilibrium? B. Which statement correctly describes a chemical reaction? 1. they control the transport of materials. (2) The concentrations of the products and reactants are constant. The products are what is formed. They absorb oxygen from the enviornment. Identify the statement which does not describe the property of alkenes. A. Which statement correctly describes an endothermic chemical reaction? The catalyst makes lower energy pathways available. O Reactants come out of a reaction. A catalyst strengthens the bonds of the reactants increasing the activation energy. Products go into a reaction, Mark this and return Save and Exit Sube (1) The concentrations of the products and reactants are equal. Which statement describes all enzymes? (1 point) A catalyst weakens the bonds of the reactants lowering the activation energy. Energy is always released Bonds between atoms break and new bonds form. (3) The rate of the forward reaction is less than the rate of the reverse reaction. 4. The catalyst binds to enzymes to release substrates. The reaction has stopped because all reactants have been used up. They are unsaturated hydrocarbons. 2. they provide energy for chemical reactions. The products have higher potential energy than the reactants, and the ΔH is positive. C. The forward reaction happens at the same rate as the reverse reaction. A. D. The reaction has stopped until a stress is applied to the system. 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