What is the best definition of chemistry?A.The study of life and energyB.The study of experiments and theoriesC.The study of mass, energy, and lightD.The study of matter, its properties, and its reactions

Chemistry is the science of matter and its interactions, particularly the properties and changes that matter undergoes. It offers a way to __________ the physical and chemical properties of matter into useful products. Through chemistry, elements can be combined, separated, and rearranged to create new materials and products, allowing us to create things that are both beautiful and functional.

1 explain the scope of chemistry ? 2 explain the atomic theory of matter ? 3 state the laws of chemical combinaton? 4 explain Dalton’s atomic theory? 5 define the terms element, atoms and molecules? 6 state the need of SI units? 7 list base SI units? z explain the relationship between mass and number of particles? z define Avogadro’s constant and state its significance; z calculate the molar mass of different elements and compounds; z define molar volume of gases at STP. z define empirical and molecular formulae; z differentiate between empirical and molecular formulae; z calculate precentage by mass of an element in a compound and also work out empirical formula from the percentage composition; z establish relationship between mole, mass and volume; z calculate the amount of substances consumed or formed in a chemical reaction using a balanced equation and mole concept, and z explain the role of limiting reagent in limiting the amount of the products formed

Which of the following statements best describes organic chemistry?Multiple choice question.Organic chemistry is the study of compounds that originate from living organisms.Organic chemistry is the study of compounds that contain the element carbon.Organic chemistry is the study of environmentally friendly compounds.

Define 'molecule'Define 'ions'Define cation and an anionDefine 'chemical formula' Define 'valency'Explain the Law of Conservation of Mass

Identify the definition of chemical reactivity. The measure of an element's ability to dissolve in a solvent. 1The tendency of an element to undergo a chemical reaction and form new substances.2The ability of an element to conduct electricity.3The property of an element to emit light when heated.