Two students are identifying a sample of tap water. Student A says that tap water is a mixture, while
Student B says that it is a compound. Which student
is correct? Justify your answer.

Choose all that apply. when creating a graph, you should: determine the x- and y- variables label the scale on the x- and y- axes plot the data points draw a line of best fit to represent the data trend

What rule is used to determine how many covalent bonds an element can form? a. the number of covalent bonds is equal to six c the number of covalent bonds is equal to five minus the group number plus the group number b. the number of covalent bonds is equal to eight d. none of the above minus the group number select the best answer from the choices provided

Estimate the molar mass of the gas that effuses at 1.6 times the effusion rate of carbon dioxide.