Answer:
- 40.66
- 9.91
Explanation:
For the first question:
Our theoretical compound is MR₂
1 mol of MR₂ contains 1 mol of M and 2 moles of R
Let's find out the molar mass:
9.45 g/mol + 18.12 g/mol . 2 = 45.69 g/mol
We can solve this, by an easy rule of three:
1 mol of MR₂ weighs 45.69 grams
Then, 0.89 moles may weigh 40.66 g
For the second question:
Our theoretical compound is D₂G
Let's determine the molar mass:
11.45 g/mol . 2 + 44.57 g/mol = 67.47 g/mol
1 mol of anything contains 6.02×10²³ molecules. By this definition we can say that 6.02×10²³ molecules weigh 67.47 grams. Let's solve by the rule of three:
6.02×10²³ molecules weigh 67.47 g
8.84×10²² molecules may weigh (8.84×10²² . 67.47 ) / 6.02×10²³ = 9.91 g
Answer: Mercury!!!!!!
Explanation:
Highs and lows. Orbiting between 28 and 43 million miles (46 and 70 million kilometers) from the sun, Mercury, also the smallest planet, feels the brunt of the solar rays. According to NASA, the tiny world suffers the most extreme temperature range of any other planet in the solar system.
Have great day!
Answer:
A: (Z)-3-chloro-4-ethyl-2,5-dimethyl-3-hexene
B: (<em>cis</em>)-3-chloro-4-ethyl-2,5-dimethyl-3-hexene
Explanation:
The two two heavier groups around the double bond are chlorine and isopropyl.
Both of these heavier groups are on the same side therefore, they are designated as cis or Z conformer.
weight depends on the force of gravity that is exerted on it.
Answer:
ZnCO3+H2SO4= ZnSO4+H2CO3
Explanation:
ZnCO3+H2SO4= ZnSO4+H2CO3
<u>Zinc is more reactive than hydrogen, hence, it will displace Hydrogen from Sulfuric acid.</u>
