Plants make food through photosynthesis, a chemical reaction. What are the starting substances of the reaction?

The starting substances for photosynthesis is sunlight, water and carbon dioxide.

Explanation: Photosynthesis is a process by which green plants manufacture their own food using energy from the sun, carbon dioxide and water. Photosynthesis takes place in the Chloroplast. A Chloroplast is an organelle found in plant cell which houses the chlorophyll. Chlorophyll is a green pigment found in plant leaves which plants use to trap energy from the sun and use it to drive to production of glucose in the presence of water and carbon dioxide.

Plants are called producers or autotrophs because they produce their own food.

The balanced chemical equation for photosynthesis is: 6 H2O + 6 CO2 + sunlight --> C6H12O6 + 6 O2

water is a polar molecule. a chemical bond is a force of attraction between atoms or ions. bonds form when atoms share or transfer valence electrons. atoms form chemical bonds to achieve a full outer energy level, which is the most stable arrangement of electrons. so, false

explanation:

in h2o molecule, two water molecules are bonded by a hydrogen bond but the bond between two h - o bonds within a water molecule are covalent. the greater the electronegativity difference, the more ionic the bond is. bonds that are partly ionic are called polar covalent bonds. nonpolar covalent bonds, with equal sharing of the bond electrons, arise when the electronegativities of the two atoms are equal.