Criss Cross Method

What is the rule for the Criss Cross method?

• The charge of the anion is the amount on anions needed in a formula

• The charge of the cation is the amount of cations needed in a formula

• The charge of one ion is the amount you need of the other ion

• None of these are correct

What is the Criss Cross method used for in chemistry?

• Balancing chemical equations

• Determining molecular geometry

• Writing chemical formulas for ionic compounds

• Predicting reaction rates

In the Criss Cross method, what do you do with the charges of ions?

• Add them together

• Subtract them

• Cross them over to become subscripts

• Ignore them

Which of the following compounds can be written using the Criss Cross method?

Tags

NGSS.MS-PS1-1

Tags

NGSS.MS-PS1-1

What is the first step in the Criss Cross method?

• Write the symbols of the elements

• Determine the charges of the ions

• Balance the equation

• Predict the product

Which of the following is a correct application of the Criss Cross method?

What is the purpose of the Criss Cross method in writing chemical formulas?

• To balance chemical equations

• To determine the number of atoms in a molecule

• To ensure the compound is electrically neutral

• To predict the physical state of a compound

Which ions would you use the Criss Cross method for?

• Covalent compounds

• Ionic compounds

• Metallic compounds

• All of the above