SS Chapter 9

A chemical formula that shows the actual # and kinds of atoms present in one molecule of a compound is called_________

• ionic formula

• covalent formula

• empirical formula

• molecular formula

An empirical formula:

• is a formula that calculates the coefficients of a compound in a balanced equation.

• is the simplest whole-number ratio of moles of elements in the compound.

C₂H₄ What is the empirical formula?

• CH

• CH₂

• C₄H₂

• C₂H₄

Find the empirical formula for a compound which contains 32.8% chromium and 67.2% chlorine.

• CrCl

• CrCl₃

• Cr₃Cl

• Cr₂Cl₆

A chemical formula that shows the actual # and kinds of atoms present in one molecule of a compound is called_________

• ionic formula

• covalent formula

• empirical formula

• molecular formula

An empirical formula:

• is a formula that calculates the coefficients of a compound in a balanced equation.

• is the simplest whole-number ratio of moles of elements in the compound.

• CH

• CH_2

• C_4H_2

• C_2H_4

Find the empirical formula for a compound which contains 32.8% chromium and 67.2% chlorine.

• CrCl

• CrCl_3

• Cr_3Cl

• Cr_2Cl_6

Which of the following is a characteristic of a covalent bond?

• Transfer of electrons

• Sharing of electrons

• Formation of ions

• High melting point

Tags

NGSS.HS-PS1-1

What is the main gas found in the air we breathe?

• Oxygen

• Carbon Dioxide

• Nitrogen

• Hydrogen