Which describes a velocity? O A. Flying at 200 miles/hr
O B. Speed changing from 2 km/hr to 5 km/hr
O C. Moving 8 meters in 2 seconds
O D. Moving north at 40 km/hr

To save time, you can approximate the initial mass of the solid to the nearest ±1 g. for example, if you are asked to add 14.3 g of copper, add between 13 g and 15 g. which of the following sets include two samples with an equal density? which all that apply below 15.4 g gold and 18.7 g silver 15.2 g copper and 50.0 g copper 20.2 g silver and 20.2 g copper 11.2 g gold and 14.9 g gold

In a reaction equation, where are the products located? a.) above the arrow b.) to the right of the arrow c.) to the left of the arrow d.) below the arrow

What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?