Which of the following statements is true about the
charges of protons and neutrons?
A Protons and neutrons have the same charge.
B. Protons have a positive charge and neutrons
have no charge
C Protons have a negative charge and neutrons
Thave a positive charge.

If you have 5.25 grams of methane (ch4), how many grams of co2 will you produce ?

6. using 3 – 4 sentences explain (in your own words) why water expands when it freezes? 7. using your knowledge of colligative properties explain whether sodium chloride or calcium chloride would be a more effective substance to melt the ice on a slick sidewalk. use 3 – 4 sentences in your explanation.

Which of the following natural processes is most likely to support the formation of an underwater sinkhole? a pollution buildup from deposited minerals b limestone cave collapsing due to changes in sea level c erosion of large amounts of sand moved by ocean waves d oxidation of rock formed by chemical weathering