6th grade science chapter 11 test

Match the following

• includes symbols and the elements of the compounds

• solvent

• breaks apart or mixes evenly into the solvent

• solute

• no charge and it lives in the nucleus of an ataom

• neutrons

• the liquid in which a solute is dissolved to form a solution

• chemical formula

• positive charge and lives in the nucleus

• Protons

Match the following

• is the region surrounding an atom's nucleus where one or more electrons are most likely found

• compounds

• is a substance made up of two or more elements that are chemically joined in a specific combination.

• electron cloud

• substance made up of only one kind of atom

• electron

• it shows you symbols for each element in the compound and subscripts

• element

• has a negative charge particle that occupies the space in an atom outside the nucleus.

• what does a chemical formula tell you

Atomic number is the number of ________in the nucleus of an atom of an element

• protons

• electron

• neutrons

You can seperate a mixture by using ​ ​ (a)   such as removing them by​ (b)   if the mixture is not combined ​ (c)   . You can also separate a mixture ​ (d)   by using differences in ​ (e)  

• physical process
• hand
• chemically
• magnetically
• physical properties.

The electrons closest to the atom's nucleus has ​ ______than those further away.

• less energy

• more energy

What is similar between a proton, neutron and electron?

• all part of a compound

• they are all part of an atom

Examples of solutions are? ​ (a)   ​ (b)   ​ (c)   ​

• ammonia
• natural gas
• brass
• air

Match the following

• is two or more atoms that are held together by chemical bonds and act as a unit.

• heterogeneous mixture

• anything that has mass and takes up space

• substance

• a mixture in which the substances are not evenly mixed

• matter

• a small particle that is the building block of matter

• atom

• is the matter with a composition that is always the same.

• molecule

Match the following

• combined chemically

• homogeneous mixture

• mixture in which two or more substances are evenly mixed, but not bonded together.

• another name for a homogeneous mixture is a ...

• solution

• The elements that make up a compound are...

• boiling or evaporation

• compounds and solutions are alike in that they both...

• look like pure substances

• How can you separate a homogeneous mixture...

Match the following

• proton

• isotope

• an atom that has a charge because it has gained or lost electrons.

• ion

• neutron

• Which is located inside the nucleus

• one of 2 or more atoms of an element having the same number protons, but different number neutrons

• Which is located outside the nucleus

• electron

• Which is located inside the nucleus