Bonding and chemical reactions

Which of the following is an example of a covalent bond

• CH4

• Fe2O3

• CaI2

• MgCL2

When forming bonds, nonmetals ___________________.

• only give away electrons

• only receive electrons

• only share electrons

• receive or share electrons depending on the type of bond

Tags

NGSS.HS-PS1-1

NaCl is an example of

• an ionic compound

• a covalent compound

Ionic compounds are different from covalent bonds because

• ionic bonds are between metals and non metals

• ionic bonds form liquids or gases when combined

• ionic bonds are stronger

• ionic bonds are between non metals

What type of bond holds CH4 together

• covalent

• ionic

• hydrogen

• opposite

If the oxidation numbers of both the metal and the nonmetal in a compound are both one then

• no numbers are needed in the formula

• number 1 is written after the metal only

• number 1 is written after the nonmetal only

• number I is written after both the metal and the nonmetal

The elements that make up a compound and the ratios of the atoms of those elements can be shown in a

• chemical symbol

• chemical formula

• subscript

• superscript

In the formula 3 H2O, the 3 represents

• molecules

• atoms

• bonds

• electrons

What is the name of a binary compound made up of lithium and chlorine?

• chloride lithium

• lithium chlorate

• lithium chloride

• lithium chlorine

The ionic compound MgO is named

• oxide magnesium

• magnesium oxygen

• oxygen magnesium

• magnesium oxide