The reactants are A
the substances present when the reactions begins.

B
the substances present when the reaction is complete.

C
the properties that change after the reaction.

D
the energy that is released or stored during the reaction.

The reactants are simply the substances present when a reaction begins.

Reactants are as opposed to products. The latter are substances that are present when a reaction is complete.

Reactants generally undergo chemical changes before they can form products. The chemical changes involve the breakage of old and the formation of new bonds among atoms of different elements that make up the reactants.

Reactants also need to summon an energy barrier before products can be formed. the energy barrier is known as activation energy.

More on reactants can be found here: link

A is the answer! A chemical reaction always starts with the reactants and ends with a product!

Hope this helps x :)

Explanation:

water   molecules stay close to each other through cohesion, the collective action of hydrogen bonds between water molecules. cohesion plants draw water upwards from the root through the stem's transport tubes (xylem) to the leaf. this transport occurs even in large trees and against gravity. transpiration, evaporation of water from plant leaves, creates a tension on water molecules being pulled up from the stem and roots.

water also has high (the attraction of one substance to another) properties because of its polar nature. adhesion of water molecules to plant cell walls counteract gravity while water is transported from roots to leaves.

water exhibits a very high surface tension when compared to other liquids. surface tension is a property of a liquid that holds the surface together and allows it to resist an external force. by capillary action, the water forms concave menisci inside the pores. the high surface tension of water pulls the concavity outwards, generating enough force to lift water from the roots to the leaves of plants.

thus, cohesion, along with adhesion and surface tension creates a capillary action that keeps water molecules interacting and moving through the plants out to the leaf cells.

therefore, option d) is the correct answer.

explanation:

a small container that holds a source of energy a solar cell that captures light energy and converts it into electricity a voltaic cell that uses the oxidation of a fuel to produce electricity

explanation: