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A student estimated the mass of a sample of powdered sulfur to be 35 g The actual mass of the sample was 42.5 g What was the error in this measurement? When 46g of sodium were exposed to dry air 62g of sodium oxide formed how many grams of oxygen from the air were used? What does horizontal or lateral erosion mean? How can you minimize the effects of coal mining? What is an effect of burning fossil fuels? What is the predominant intermolecular force in each of this compound ammonia? A science teacher added the reactive metal potassium to water. The metal formed a ball shapeon the surface of the water and the gas given off burned with a pop. Name the gas given off.? Why is the south in more danger of hurricanes than the Midwest and northeast? What are 3 main uses of geothermal energy? What does inhaling nitrous oxide do to your body? How do rocks get magnetized? Is hydrogen safe to breathe? Is milk a mixture element or compound? How do you calculate magnetic flux density? What is The process by which gases in the atmosphere such as water vapor and carbon dioxide absorb thermal energy and radiate it back to earth? Why in polar regions some of the water is frozen to snow while sea is left unfrozen? What is a cumulus cloud classified as? Rocks that are the least resistant to surface attack by water and air remain in the landscape true or false? How you pollute the soil? What is the solubility of silver nitrate if only 11.1 g can dissolve in 5.0 g of water at 20 c?