calculate the percentage of Na2CO3 in 1 gram of sample dissolved in water and titrated with standard solution of 0.1M HCl. Volume of HCl required is 36.5cm3​

Imagine that you own a property that is exactly 2.2 acres large. you want to sell your property, but your realtor tells you that you cannot sell your land by the acre. in order to sell your land you need to determine the area you own in units of square meters? given that there are 1.6 kilometers in 1 mile and 640 acres in 1 square mile, what is the area of land that you own in square meters square meters?

Long term exposure to waves can cause sunburns and skin cancer. a) visible b) infrared c) gamma rays d) ultraviole

What is the mass of oxygen gas is consumed in a reaction that produces 4.60mol so2