PLEASE HELP ASAP Use the drop-down menus to complete each statement.
The controls land for oil and gas development.
The ensures that federal wildlife laws are followed.
The protects ecosystems and supervises public access to forests.
The regulates land used for mining, grazing, recreation, and wilderness.
The manages monuments, historic sites, seashores, and more.

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

What is the approximate mass of 25 cm3 of silver, if the density is 10.5 g/cm3? a. 0.42 g b. 2.4 g c. 42 g d. 260 g

The combustion of methane, ch4, releases 890.4kj/mol. that is, when one mole of methane is burned,890.4 kj are given off to the surroundings. this meansthat the products have 890.4 kj less than the reactants.thus, ah for the reaction = - 890.4 kj. a negative symbolforah indicates an exothermic reaction.ch (g) + 20 (g)> co2 (g) + 2 h0 (1); ah = - 890.4 kga) how much energy is given off when 2.00 mol of ch,are burned? b) how much energy is released when 22.4g of ch. areburned?