I believe its c because bio has to do with life
Explanation:
Description
The law of conservation of mass states that mass in an isolated system is neither created nor destroyed by chemical reactions or physical transformations. According to the law of conservation of mass, the mass of the products in a chemical reaction must equal the mass of the reactants.
2 - methylbenzamide and 3 - nitrobenzoic
acid both have melting points of 140.1 - 140.4°C.
To add, nitrobenzoic<span> <span>acids are derivatives of benzoic acid. Two are
commercially important. They are about ten times more acidic than the parent
benzoic acid.</span></span>
Answer:
See the steps below (8,681.25 g of will be needed0
Explanation:
From the equation, 4 moles of H2 requires 1 mole of Fe3O4.
1st step: calculate the number of mole of 300 g of H2.
mole = mass/molar mass
Mole of 300 g H2 = 300/2 = 150 mole
Hence, 150 moles of H2 will require: 150/4 = 37.5 moles of Fe3O4.
Step 2: Use the mole of Fe3O4 to calculate the mass of Fe3O4
mass = mole x molar mass
mass of 37.5 mole Fe3O4 = 37.5 x 231.5 = 8,681.25 g
Hence, 8,681.25 g of Fe3O4 will be required to completely react with 300 g H2
<span>1-10 are True or False (This is Environmental Science not physics)
1). an oil rigs searches for and finds oil reservoirs. False
2). The volume of oil in one barrel is equal to 42 gallons . True
3). The United States uses more oil than any other country in the world. True
4). Water can be pumped into oil reservoirs to increase the pressure of the existing oil. True
5). The Exxon Valdez ship spilled crude oil off the coast of California False
6). Farmers in the United States grow more diverse crops than any other country in the world. False
7). Gradually taking over farmland over a long period of time is known as commodities. False
8( True
9). Some farmers have been selling their land to developers because it is more cost-efficient to do so than to grow crops. True
10). The FBI regulates the use of pesticides in agriculture crops. False</span>