According to the Arrhenius theory, an acid is a
substance that
(1) changes litmus from red to blue
(2) changes phenolphthalein from colorless to
pink
(3) produces hydronium ions as the only positive
ions in an aqueous solution
(4) produces hydroxide ions as the only negative
ions in an aqueous solution

What mass of carbon dioxide is produced from the complete combustion of 4.50×10−3 g of methane?

Why do you suppose the structural polysaccharide cellulose does not contain branches? why do you suppose the structural polysaccharide cellulose does not contain branches? branches in the molecule would generate side chains that would almost certainly make it difficult to pack the cellulose molecules into globules, thereby decreasing the flexibility and strength of the globules. branches in the molecule would generate side chains that would almost certainly make it difficult to pack the cellulose molecules into microfibrils, thereby increasing the rigidity and strength of the microfibrils. branches in the molecule would generate side chains that would almost certainly make it difficult to pack the cellulose molecules into globules, thereby increasing the flexibility and strength of the globules. branches in the molecule would generate side chains that would almost certainly make it difficult to pack the cellulose molecules into microfibrils, thereby decreasing the rigidity and strength of the microfibrils.

How many grams of co(g) are there in 74.5 ml of the gas at 0.933 atm and 30o c?