Answer:
H3PO4 is stronger than H2PO4- because
H3PO4 dissociation constant is 6.9×10^-3
H2PO4^- dissociation constant is 6.2×10^-8
They’re put in groups that have similar properties to them. but the periodic table is organized by atomic numbers.
The molar mass of a substance is the mass of one mole of that substance. Therefore, in order to calculate the mass that is present while the number of moles are known, we simply multiply the number of moles present by the molar mass. In the case of carbon dioxide, the molar mass is obtained by adding the mass of one carbon atom (12) and two oxygen atoms (32). The molar mass is 12 + 32 = 44. Therefore, the mass of carbon dioxide is 2.1 * 44 = 92.4 grams. The answer is D<span>.</span>
Answer:
true
Explanation:
Rocks have different properties such as hardness and texture
Metamorphic rocks form when heat and pressure cause sedimentary or igneous rocks to recrystallize into new rock.
Soil is made up of dirt with decomposed organic material
