This may seem confusing because they give you two masses, but all you have to do is pick one to do the calculations. Personally, I would pick O2, since the molar mass is easier to calculate. The answer would be 3.3 g (rounded for sig figs). To get this, first take the 5.9 grams of O2 and convert it to moles by dividing by the molar mass of oxygen gas, which is 32. Then, multiply both by the mole-mole ratio, which is 2:2, or simply 1:1. After that, multiply that by 18g, which is the molar mass of water to get grams of water.
REMEMBER, you have to write and balance the chemical equation before you can do any of that work.
That happens to be CH4 + 2O2 => CO2 + 2H2O
Answer:
- <em>The inertness of the noble gases is due to </em><u>the fact that their outermost main energy level of electrons (valence shell) is full.</u>
Explanation:
<em>Inertiness of the noble gases</em> refers to their lack of reactivity, i.e. the stability provided by a full valence electron shell.
The noble gases are He, Ne, Ar, Kr, Xe, Rd, and, the most recently discovered, Og.
They are located in the last column (18) of the periodic table.
Then, when you do the electron configuration of the noble gases, you find they have the outermost prinicpal energy level full. These are their electron configurations using the abbreviated form:
Being their valence orbitals full, these elements will not be very likely to exchange or share electrons, which is the reason of their inertness.
This does not mean that they do not react at all. Xe and F (the most reactive nonmetal) form some compounds.
Answer:
1L=1000mL
1000mL+300mL=1300mL
so the answer is d.1300mL
Explanation:
8.3 × 106 - trust me, it's actually right. You can use the calculator to see if I'm correct. Punch in <span>8.3 × 106 = 6.6</span>
