_________ is a balanced by placing the appropriate coefficients before the symbols or formulas of reactants and products.

__________ are substances that can be added to a chemical reaction to increase its reaction rate.

It results to faster reaction rate.

This allows the reaction to occur in an alternative pathway.

It is the world’s most abundant fossil fuel.

It gives electricity via an electrochemical reaction.

It composed of photovoltaic cells or cells that convert light to electricity.

Wastes such as crop remains, manure and garbage are good sources of?

It is used to create methane and alcohol which are fuels useful in energy production and in powering automobiles.

It is the major lipophilic antioxidant in skin

It is energy that can easily be replenished and can be exchanged for a short time.

A kind of non-renewable energy that is less on environmental hazard compared to fossil fuels though it still has some emissions of carbon dioxide, nitrous oxide, and sulfur dioxide.

It is a strong acid used in some toilet bowl cleaners.

They keep soil/dirt particles in suspension.

This skincare active ingredient is also your solution to anti-aging and it can save you from the distress of dry skin, skin irritation, eczema, or psoriasis.

A kind of alcohol that is more dehydrating. 

________present in fragrance products which can cause reproductive abnormalities and asthma to children.

In collision theory, decreasing the temperature of the reactants increases the kinetic energy that it possesses, thereby increasing the number of collisions and giving enough energy to overcome the activation energy.

Catalysts are consumed in a reaction.

Wood is also a biomass fuel.