How much salt should llya add to 810g of water to make 10% solution? how much solution will he make?

Select all the correct answers. what is 221,000,000,000,000,000,000 expressed in scientific notation?

Find percent notation for 0.008 0.008=

You are making a battery for a science project. you have copper wire for your first electrode. you need to choose a conductor, a second electrode, and a device to plug into your battery. you have already chosen a lemon conductor. complete each statement below about the options that include a lemon conductor.