I hate chemistry sm pls help

You are asked to make 10 moles of iron (Fe) from iron oxide (fe203) and excess carbon monoxide (CO).

HACTEHA [7]

5 moles.
think about the ratio of moles of iron oxide (Fe2O3) and iron (Fe) in that balanced chemical equation, which is 1:2, respectively. if there are 10 moles of Fe, you would divide that by 2 to get the number of moles of Fe2O3.

6 0

3 years ago

Electron configurations are like an address because?

nekit [7.7K]

Each element shows the group and period they are through the number of energy level and valence electron in which can determine their place in the periodic table.

4 0

3 years ago

As the frequency of a wave increases, the energy...

gizmo_the_mogwai [7]

The energy decreases

8 0

3 years ago

Two cars that are identical except for their color are traveling on the same road.

Ray Of Light [21]

B. The blue car has more kinetic energy than the red car

7 0

2 years ago

Read 2 more answers

For each of the following sublevels, give the n and l values and the number of orbitals: (a) 6g; (b) 4s; (c) 3d.

olya-2409 [2.1K]

Answer:

(a) 6g. Shell 6, n = 6. Subshell g, l = 4. Number of orbitals in sublevel = 9

(b) 4s. Shell 4, n = 4. Subshell s, l = 0. Number of orbitals in sublevel = 1

(c) 3d. Shell 3, n = 3. Subshell d, l = 2. Number of orbitals in sublevel = 5

Explanation:

The rules for electron quantum numbers are:

1. Shell number, 1 ≤ n, n = 1, 2, 3...

2. Subshell number, 0 ≤ l ≤ n − 1, orbital s - 0, p - 1, d - 2, f - 3

3. Orbital energy shift, -l ≤ ml ≤ l

4. Spin, either -1/2 or +1/2

So,

(a) 6g. Shell 6, n = 6. Subshell g, l = 4. Number of orbitals in sublevel = 2l+1 = 9

(b) 4s. Shell 4, n = 4. Subshell s, l = 0. Number of orbitals in sublevel = 2l+1 = 1

(c) 3d. Shell 3, n = 3. Subshell d, l = 2. Number of orbitals in sublevel = 2l+1 = 5

4 0

3 years ago