At this point, review your notes to prepare to take a summative practice. this summative practice will check your understanding of the concepts discussed in this portion of your unit. if you pass this practice, you will be able to move forward to the next portion of the unit. if you do not pass, you will be asked to complete a reteach or remediation activity depending on your grade before being able to retake this test and move forward.
according to the law of conservation of mass, the total mass of the reacting substances is
a.) always more than the total mass of the products
b.) always less than the total mass of the products
c.) sometimes more and sometimes less than the total mass of the products
d.) always equal to the total mass of the products