:hydrochloric acid reacts with the mineral calcite to produce carbon dioxide gas, water, and calcium chloride. based on what you have learned in activity a and activity b, what are three things you could do to make the reaction occur more quickly?

Following three things when applied could make the reaction to occur more quickly;

1) Increasing Temperature:
                                          Increase in temperature increases the Kinetic energy of molecules. This results in increase in the velocity and rate of collisions between reactants. Hence, greater the number of collisions between reactants per time greater will be the probability of formation of product per unit time.

2) Grinding Calcite:
                              Grinding of Calcium carbonate results in the increase of surface area of calcite. So greater the surface area greater is the exposure of Calcium carbonate to HCl molecules, hence the rate of formation of product increases.

3) Using Catalyst:
                            Very important. Catalyst when used decreases the activation energy and increase the rate of reaction by following methods.

                       a) Providing new pathway

                       b) weakening the bonds

                       c) providing surface area

                       d) holding up the reactant close to each other.

The things that can be done to make the reaction occur quickly include increasing the temperature, grinding calcite, and using catalyst.

It should be noted that a catalyst is used to speed up the rate of a chemical reaction. Also, increasing the temperature is important in increasing the kinetic energy of the molecules.Furthermore, it should be noted that grinding calcite results in the rise in the surface area of the calcite. Therefore, the formation of product will rise.

In conclusion, these are important in making hydrochloric acid react with the mineral calcite quickly.

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It is 4.92 e-4 sorry if i am wrong

Mass is the amount of matter in an object.  weight is the measurement of the pull of gravity on an object.  say for example, you travel to the moon which has a different gravitational field compared to the gravitational field of earth. (gravitational fields: earth = 1, moon = 0.165)  now when you are on the moon, the pull of gravity on you is different than on the earth. and as weight is the measurement of the pull of gravity on an object, that means yes, your weight can and will change on the moon.  however, on the moon, on earth or even on jupiter, the amount of mass inside of you remains the same. meaning your physical mass remains constant.  in conclusion it is possible for your weight to change as your mass remains constant.