Write a molecular equation for the precipitation reaction that occurs (if any) when the following solutions are mixed. if no reaction occurs, write noreaction.
sodium chloride and lead (ii) acetate
potassium sulfate and strontium iodide
chromium (iii) nitrate and sodium phosphate

In 1901, thomas edison invented the nickel-iron battery. the following reaction takes place in the battery. fe(s) + 2 nio(oh)(s) + 2 h2o(l) fe(oh)2(s) + 2 ni(oh)2(aq) how many mole of fe(oh)2, is produced when 3.75 mol fe and 8.70 mol nio(oh) react?

Instructions: the table below explains the average rate at which some geologic processes occur. calculate the amount of sea level change, erosion, and uplift for 100,000 years, 1,000,000 years, and 10,000,000 years. remember, 100 cm = 1 m. fill out the table completely and answer the below questions in complete sentences. for with completing the table, use this video: if you need directions on how to submit your assignment, click on the link due by sunday at midnight for full credit. if submitted late, you will receive a 30% grade deduction. check your pacing guide for assignment dates. process rate per 1,000 years after 100,000 years after 1,000,000 years after 10,000,000 years sea level changes 10 m 1000 10000 100000 regional erosion 2 m 200 2000 20000 uplift 10 cm 1. what is the fastest process, sea level changes, erosion, or uplift? 2. what is the slowest process, seal level changes, erosion, or uplift?

Boron has an average atomic mass of 10.81. one isotope of boron has a mass of 10.012938 and a relative abundance of 19.80 percent . the other isotope has a relative abundance of 80.20 percent what is the mass of that isotope? report two decimal places