The water level in a graduated cylinder is at the 10.0 mL mark. A 3.00 g metal sample is added to the graduated cylinder and the water level rises to 14.2 mL. Calculate the density of the metal to the correct number of significant figures.

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

If you have 5.25 grams of methane (ch4), how many grams of co2 will you produce ?

1. explain hydrogen peroxide, h 2 o 2 properties and decomposition reaction. 2. describe how each of the following natural cycles plays a part in earth’s climate system. (a) the water cycle (b) the carbon cycle