which statement describes a chemical reaction?

The catalyst increases the concentration of reactants. Which best describes a chemical reaction? A. The forward reaction happens slightly faster than the reverse reaction. Which statement correctly describes an endothermic chemical 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. (3) The rate of the forward reaction is less than the rate of the reverse reaction. They absorb oxygen from the enviornment. Please put the number of the answer i … The catalyst increases the concentration of products. The products have higher potential energy than the reactants, and the ΔH is negative. Clearly two of these can be eliminated. They are unsaturated hydrocarbons. 1. they control the transport of materials. B. The products have higher potential energy than the reactants, and the ΔH is positive. Energy is always released Bonds between atoms break and new bonds form. (2) The concentrations of the products and reactants are constant. Some reactions appear to be “substitution” of an alkene, but in fact, is the result of an “addition-elimination” sequence of reactions. D. The reaction has stopped until a stress is applied to the system. B. Which statement describes all enzymes? A. 10. Identify the statement which does not describe the property of alkenes. B. Which statement correctly describes what transpires during a chemical reaction? Aug 2002-13 Which statement correctly describes a chemical reaction at equilibrium? 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. The catalyst binds to enzymes to release substrates. The reactants are what are "reacting". The rearrangement of atoms constitutes a chemical reaction, although some phase changes can also qualify. The products don't react. They decolourises bromine water. The reaction has stopped because all reactants have been used up. C. The forward reaction happens at the same rate as the reverse reaction. A. 2. they provide energy for chemical reactions. 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 The products are what is formed. 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. a) Reactant molecules and product molecules have the same velocity. 4. The catalyst makes lower energy pathways available. or D. The products have lower potential energy … O Reactants come out of a reaction. 3.they affect the rate of chemical reactions. C. The products have lower potential energy than the reactants, and the ΔH is negative. Which statement correctly describes a chemical reaction? Which statement describes a chemical reaction at equilibrium? 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 Which statement best describes how a catalyst can speed up a chemical reaction? Which statement describes a chemical reaction at equilibrium? (1 point) A catalyst weakens the bonds of the reactants lowering the activation energy. ) Reactant molecules and product molecules have the same velocity property of alkenes sequence of reactions ) a catalyst speed... Have the same rate as the reverse reaction the number of the reactants, and the ΔH negative... And new bonds form the activation energy higher potential energy than the reverse.... Potential energy … Which statement describes a chemical reaction at equilibrium in fact, the... 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