Disappointed by A and the B
Answer: Rocks are formed on Earth as igneous, sedimentary, or metamorphic rocks. Igneous rocks form when rocks are heated to the melting point which forms magma . ... This changing of rock types is called the "Rock Cycle". Solid rock can be changed into a new rock by stresses that cause an increase in heat and pressure.
Explanation: Brainiest answer pls
Answer:
From the balanced chemical equation 4 iron atoms react with 3 oxygen molecules to yield 2 iron (III) oxide formula units. Or 4 moles of iron atoms react with 3 moles of oxygen molecules to yield 2 moles of iron (III) oxide.
Answer:
0.04167mole
Explanation:
To convert gram to mole,
C6H12O6
C - 12
H - 1
O - 6
There are 6 moles of C, 12 mole of H and 6 mole of O
Therefore, multiply each number of mole by the mass of each element
C - 12 * 6 = 72
H - 1 * 12 = 12
O - 16 * 6 = 96
The molar mass of C6H12O6 = 72 + 12 + 96
= 180g/mol
Dividing the number of mass by the mm
= 7.50g / 180g/mol
= 0.04167 mole
They all have the same mass right now if you think about it. It is just a matter of what the number is. Also, these numbers are compared but they all have the same mass and value. It's just a matter of moving the decimal.
