Nitrates, turbidity and acidity. Whichwater sample was likely runoff from a farm?

If 10.g of agno3 is available, what volume of 0.25 m agno3 can be prepared

What is the molar mass of a gas that has density of 2.054 g/l

Acm ruler with main graduations from 1 to 10 from left to right there are 10 secondary graduations between each of the main graduations there is a line that begins. at the left end of the ruler 10 secondary graduations to the left of the “1 main graduation the right end of the line ends on the eighth secondary graduation to the right of 3 how long is the line