Which statement describes all enzymes? The reactants are what are "reacting". D. The reaction has stopped until a stress is applied to the system. The catalyst increases the concentration of reactants. The catalyst makes lower energy pathways available. B. Identify the statement which does not describe the property of alkenes. A catalyst strengthens the bonds of the reactants increasing the activation energy. They decolourises bromine water. Which statement correctly describes an endothermic chemical reaction? Which statement correctly describes what transpires during a chemical reaction? C. The products have lower potential energy than the reactants, and the ΔH is negative. (2) The concentrations of the products and reactants are constant. Which statement describes a chemical reaction at equilibrium? O Reactants come out of a reaction. Clearly two of these can be eliminated. The rearrangement of atoms constitutes a chemical reaction, although some phase changes can also qualify. A. B. The catalyst increases the concentration of products. Which statement best describes how a catalyst can speed up a chemical reaction? Which best describes a chemical reaction? The forward reaction happens slightly faster than the reverse reaction. 4. The reaction has stopped because all reactants have been used up. 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. They are unsaturated hydrocarbons. B. C. The forward reaction happens at the same rate as the reverse reaction. Please put the number of the answer i … Which statement correctly describes a chemical reaction? a) Reactant molecules and product molecules have the same velocity. A. (1 point) A catalyst weakens the bonds of the reactants lowering the activation energy. The products have higher potential energy than the reactants, and the ΔH is positive. (3) The rate of the forward reaction is less than the rate of the reverse reaction. Products go into a reaction, Mark this and return Save and Exit Sube 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 A. 10. (1) The concentrations of the products and reactants are equal. 3.they affect the rate of chemical reactions. 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 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. 1. they control the transport of materials. Which statement describes a chemical reaction at equilibrium? Energy is always released Bonds between atoms break and new bonds form. The products are what is formed. 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 products don't react. The products have higher potential energy than the reactants, and the ΔH is negative. 2. they provide energy for chemical reactions. The catalyst binds to enzymes to release substrates. or D. The products have lower potential energy … They absorb oxygen from the enviornment. The forward reaction happens at the same velocity fact, is the result of an,! Return Save and Exit Sube Which statement best describes how a catalyst can speed up a reaction. A chemical reaction Which statement correctly describes what transpires during a chemical reaction equilibrium. Bonds between atoms break and new bonds form sequence of reactions the result an. The property of alkenes Mark this and return Save and Exit Sube Which statement describes a reaction. 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