Chemical analysis & Using resources key words MBA

What is the best definition of purity?

• something that only contains one compound or element throughout

• something that only contains many compounds or elements throughout

• something with nothing added to it

• something with only things added to it to make it useful

what is the best definition of a formulation?

• process by which you make something

• an answer to a maths problem

• baby milk

• a useful mixtures with a precise purpose that is made by following a 'formula'

What is chromatography?

• a method of separating a soluble solid from a solution

• a method of separating an insoluble solid from a liquid

• a method to separate mixtures of soluble substances

• a method to separate magnetic materials from non-magnetic ones

What is an anion?

• a positive ion

• a negative ion

• a type of onion

• a hard growth on your toes

What is a cation?

• a positive ion

• a negative ion

• a type of onion

• a hard growth on your toes

Which is the best definition for a precipitate?

• a very steep rock face or cliff, especially a tall one

• an insoluble solid that emerges from a liquid solution

• being exact, accurate, and careful about details

• the state or fact of existing, occurring, or being present

In chemistry, how would you define analysis?

• the study of the chemical composition and structure of substances

• the study of the structure, properties, composition, reactions, and preparation of carbon-containing compounds

• the calculation of known quantities of materials

• a scientific approach that combines analytical tools and biological content in one place

What does insoluble mean?

• changing from a solid to a liquid

• will dissolve

• does not dissolve

• changing from a liquid to a gas

What is a halide?

• a halogen in solid form

• a chemical compound consisting of a non-metal and another element

• a chemical compound consisting of a metal and another element

• a chemical compound consisting of a halogen and another element

What is an ion?

• a positive ion

• a negative ion

• a type of onion

• any atom or group of atoms that bears one or more positive or negative electrical charges