What can we say about this chemical equation? (check all that apply) 2h2 + o2 --> 2 h2o group of answer choices mass is not conserved. this chemical equation is balanced this chemical equation is not balanced. mass is conserved

This chemical equation is balanced

Mass is conserved

Explanation:

Properly writing the equation:

               2H₂ + O₂ → 2H₂O

In this chemical equation, we have that the equation is well balanced and mass is conserved.

A balanced chemical equation is one in which the number of atoms of each elements on the reactant and product sides are the same. In the equation above:

                Reactant side                       Product side

     H:          4 atoms                                   4 atoms

     O:          2 atoms                                    2 atoms

The coefficients offer a way of balancing chemical equations properly.

The law of conservation of mass states that "mass is neither created nor destroyed in an isolated systems where chemical reactions occur". All chemical equations must be written to show the law of conservation of mass. From the equation above, the mass is the quantity of substance that is present in a system, by the balanced chemical equation mass is conserved.

the leaf is an organ of a typical plant, and the main functions are to complete photosynthesis and allow the plant to exchange gas, just like how we have the respiratory system. leaves have the stomata, which collects maintains co2 and o2 levels. this is necessary for cell metabolism. the leaf also collects sunlight using chloroplasts. succinctly, leaves own a pivotal role in sustaining plant life.

the major pests we deal with are insects, weeds and fungal diseases. a pesticide is a product, whether organic or chemical, used to kill the target pest. there are other techniques gardeners should use that can prevent the severe infestations that make the use of pesticides necessary