1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
jasenka [17]
3 years ago
9

Need help asap will give brainly

Chemistry
1 answer:
uranmaximum [27]3 years ago
4 0

Answer:

8. B

9. D

10. A

Explanation:

give brainliest pls ^-^

You might be interested in
How many iron atoms are in 7.890 g of iron?
zhenek [66]

Answer:

see explanation

Explanation:

#Atoms = (mass/atomic wt) x 6.02 x 10²³

  • mass is grams
  • atomic weight is grams/mole
  • 6.02 x 10²³ is atoms/mole
8 0
2 years ago
I will give you 100 points and mark you as brainilest if you answer the whole thing correctly.​
Nookie1986 [14]

Answer:

1.)Al_{2} O_{3}

2.) Li_{3} N\\

3.) 2HCl

4.) MgO

5.) Mg and O_{2}

6.) H_{2} and O_{2}

7.)Na and Br_{2}

8.) 3 aluminums and 3 chlorides

Explanation:

6 0
3 years ago
How many moles of atoms are there in 27g of aluminium
Marrrta [24]
We know that the molar mass of Al is 27 g/mol.

27 g Al* (1 mol Al/ 27 g Al)= 1 mol Al.

The final answer is 1 mol Al~
4 0
4 years ago
For each solute identify the better solvent: water or carbon tetrachloride <br> Na2, I2, CCH2O, C6H6
Virty [35]
NH3 = water (it is actually a water soluble gas)
C6H14 = CCl4 (C6H14 won't mix with water at all)
Na2S = water (Na2S is a salt. Salts dissolve best in water)
Br2 = CCl4, but it will also dissolve in water.
3 0
3 years ago
In ironmaking, iron metal can be separated from iron ore (Fe2O3) by heating the ore in a blast furnace in the presence of coke,
mel-nik [20]

The limiting reactant is iron ore, the theoretical yield of iron metal is 701.344 kg, and the theoretical yield of carbon dioxide is 413.292 kg.

<h3>Stoichiometric problem</h3>

From the equation of the reaction:

2 Fe_2O_3(s) + 3 C(s) --- > 4 Fe(s) + 3 CO_2(g)

The mole ratio of iron ore to carbon is 2:3.

Mole of 1000 kg of iron ore = 1000000/159.69

                                          = 6,262 moles

Mole of 120 kg carbon = 120000/12

                                 = 10,000 moles

Thus, it appears that the carbon is in excess while the iron ore is limited in availability.

The mole ratio of the iron ore and the iron produced is 1:2. Thus, the equivalent number of moles of iron produced will be:

              6,262 x 2 = 12,524 moles

Mass of 12,524 moles of iron = 12,524 x 56

                                                = 701,344 g or 701.344 kg

Thus, the theoretical yield of iron is 701.344 kg.

The mole ratio of the iron ore and the carbon dioxide produced is 2:3. The equivalent mole of carbon dioxide produced will be:

         6,262 x 3/2 = 9,393 moles

Mass of 9,393 moles carbon dioxide = 9,393 x 44

                                                         = 413,292 or 413.292 kg

The theoretical yield of carbon dioxide is, therefore, 413.292 kg.

More on stoichiometric problems can be found here: brainly.com/question/14465605

#SPJ1

       

3 0
2 years ago
Other questions:
  • Which celestial object is found in the Kuiper Belt?
    7·1 answer
  • Write the chemical formula and Lewis structure of the following, each of which contains five carbon atoms:
    9·1 answer
  • What are the different components that make up a chemical formula?
    12·1 answer
  • Need help please ASAP
    12·1 answer
  • If an element has 13 protons, how many electrons are in its outer shell?
    8·1 answer
  • Does skin have a nucleus true or false
    8·1 answer
  • PLEASE ANSWER ASAP!!!!!!!!!!!! The Relative Surface Gravity is 27.551 on _____.
    13·1 answer
  • What is halogenation with explanation
    5·1 answer
  • A partir de 140 g de n2 y una cantidad de h2 se obtuvo 153G de NH³. Cual es el % de rendimiento de la reacción química
    9·1 answer
  • N₂(g) + 3H₂(g) → 2NH3(g)
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!