Which of these statements is true about chemical reaction rates?

A. The reaction rates cannot decrease

B. the reaction rates cannot increase

C. The reaction rates can change

D. The reaction rates are always constant

Which substance is a product of a fermentation reaction? a - glucose b - zymase c - ethanol d - water

You are provided with a beaker, wire, two nails, battery, bulb and dilute soultions of HCl, HNO3, alcohol and glucose. How will you identify the acids from the given solutions using the given materials?

23 For a reaction at equilibrium, which change can increase the rates of the forward and reverse reactions?

Which of the following elements is most likely to form a covalent bond? A. K B. Mg C. Cu D. Br

If a new element were discovered and it was found to form 1 - ions, in which group would you place it in the periodic table?

How does heat transfer takes place between any two systems?

Hydrate name of CaCl2 * 8 H2O

Calculate the heat evolved from a mixture of 14.1 l of sulfure dioxide

Which stament best describes a solution

Which answer accurately describes the difference between speed and velocity? Read each answer choice carefully. Question 4 options: A. If speed is constant, then velocity is also constant. B. Speed requires direction.