Answer:
D
Explanation:
plz mark brainliest answer if it helps
Answer:
.11 mol
Explanation:
Convert mmHg to atms by dividing by 760. Then multiply 6.3 by the atms and divide by .08206*(273+28) to get mol
Answer: When maganese dioxide is added to hydrogen chloride you get water maganese dichloride and chlorine gas then balanced equation is
.
Explanation:
The word equation is given as maganese dioxide is added to hydrogen chloride you get water maganese dichloride and chlorine gas.
Now, in terms of chemical formulae this reaction equation will be as follows.
![MnO_{2} + HCl \rightarrow H_{2}O + MnCl_{2} + Cl_{2}](https://tex.z-dn.net/?f=MnO_%7B2%7D%20%2B%20HCl%20%5Crightarrow%20H_%7B2%7DO%20%2B%20MnCl_%7B2%7D%20%2B%20Cl_%7B2%7D)
Here, number of atoms on reactant side are as follows.
Number of atoms on product side are as follows.
To balance this equation, multiply HCl by 4 on reactant side and multiply
by 2 on product side. Therefore, the equation can be rewritten as follows.
![MnO_{2} + 4HCl \rightarrow 2H_{2}O + MnCl_{2} + Cl_{2}](https://tex.z-dn.net/?f=MnO_%7B2%7D%20%2B%204HCl%20%5Crightarrow%202H_%7B2%7DO%20%2B%20MnCl_%7B2%7D%20%2B%20Cl_%7B2%7D)
Hence, number of atoms on reactant side are as follows.
Number of atoms on product side are as follows.
Since, this equation contains same number of atoms on both reactant and product side. Therefore, this equation is now balanced equation.
Thus, we can conclude that when maganese dioxide is added to hydrogen chloride you get water maganese dichloride and chlorine gas then balanced equation is
.
Answer: 104 g
Explanation: reaction Cr2O3 + 3 H2 ⇒ 2 Cr + 3 H2O
M(Cr2O3) = 150 g/mol, so n = m/M = 1.0 mol
Number of moles of H2 should be 3.0 moles and
It is much greater (150 g / 2.016 g/mol)
1 mol Cr2O3 produces 2 mol Cr.
Mass m= 2.0 mol· 52g/mol= 104 g
Answer:
Noble gases have a complete valence electron shell making them stable and nonreactive.
Explanation: