Chemical Rxns - Part 1 Notes

Chemical Rxns - Part 1 Notes

Multiple Choice

When a new substance is formed, that is evidence of a...

• Physical change

• Chemical change

Multiple Choice

Which of the following is the PRODUCT of the reaction below?

 $2\ H_{2\ }+\ O_2\ \ \rightarrow\ 2\ H_2O$  

•  $H_2$  

•  $O_2$  

•  $H_2O$  

Multiple Select

Select the 2 REACTANTS of the reaction below?

 $2\ H_{2\ }+\ O_2\ \ \rightarrow\ 2\ H_2O$  

•  $H_2$  

•  $O_2$  

•  $H_2O$  

Multiple Choice

How many  $H_2$  molecules are in the equation below?

 $2\ H_{2\ }+\ O_2\ \ \rightarrow\ 2\ H_2O$  

• 1

• 2

• 3

• 4

Multiple Choice

How many  $O_2$  molecules are in the equation below?

 $2\ H_{2\ }+\ O_2\ \ \rightarrow\ 2\ H_2O$  

• 1

• 2

• 3

• 4

Multiple Choice

 $2\ Na\ +\ Cl_2\ \ \ \rightarrow\ \ 2\ NaCl$  

True/False - There are equal amounts of Na atoms on both sides of the equation above.

• True

• False

Multiple Choice

 $2\ Na\ +\ Cl_2\ \ \ \rightarrow\ \ 2\ NaCl$  

True/False - There are equal amounts of Cl atoms on both sides of the equation above.

• True

• False