the rate of reaction was measured during a chemical reaction. after the first 3 seconds, the rate of reaction was 1.8 x10-6 m/s. which of the following would you expect
after another 3 seconds?
the rate would be higher, and the concentration of reactants would be lower.
the rate would be higher, and the concentration of reactants would be higher.
the rate would be lower, and the concentration of reactants would be lower
the rate would be lower, and the concentration of reactants would be higher.

The rate would be lower and the concentration of reactants would be lower.

Explanation:

The rate of a chemical reaction depends on the rate constant and the concentration of reactants.

For Ex:

For a reaction experimentally given by A + B > C + D

Rate = k[A][B]

where k is the rate constant

          [A] = concentration of reactant A

          [B] = concentration of reactant B

As the reaction proceeds,the concentration of reactant decrease and concentration of products increase.Rate constant k depends only on temperature and activation energy.Hence it will remain constant throughout the reaction assuming that reaction is carried out at constant temperature and pressure.

Hence rate will depend only on concentration of reactants and hence decrease with decrease in concentration of reactants.

they are made of gases.

they have a spherical shape.

they make energy through fusion.

answer: e.   sour taste

explanation: acids are those substances which dissociates in water to give ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. acids are sour in taste. example: hcl

bases are those substances which dissociates in water to give ions or accepts ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. bases are bitter in taste. bases are slippery in nature.