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
alexira [117]
2 years ago
8

Given the following unbalanced equation:

Chemistry
1 answer:
Lorico [155]2 years ago
3 0
<h3>Answer:</h3>

8.01 mol MgO

<h3>General Formulas and Concepts:</h3>

<u>Math</u>

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

<u>Chemistry</u>

<u>Atomic Structure</u>

  • Moles
  • Compounds

<u>Stoichiometry</u>

  • Using Dimensional Analysis
  • Analyzing Reactions RxN
<h3>Explanation:</h3>

<u>Step 1: Define</u>

[RxN - Unbalanced] Mg + O₂ → MgO

[RxN - Balanced] 2Mg + O₂ → 2MgO

[Given] 8.01 moles Mg

[Solve] moles MgO

<u>Step 2: Identify Conversions</u>

[RxN] 2 mol Mg → 2 mol MgO

<u>Step 3: Stoich</u>

  1. [DA] Set up:                                                                                                       \displaystyle 8.01 \ mol \ Mg(\frac{2 \ mol \ MgO}{2 \ mol \ Mg})
  2. [DA] Multiply/Divide [Cancel out units]:                                                          \displaystyle 8.01 \ mol \ MgO
You might be interested in
Calculate the percent errorin a length measurementof 4.45cm if the correct value is 4.06
FinnZ [79.3K]

Answer:

9.6 %

Explanation:

<u>Step 1: How to define  percent error ? </u>

⇒ % error is the difference between a measured value and the known or accepted value

⇒Percent error is calculated using the following formula:

⇒%error  =  | Experimental value-theoretical value/theoretical value |  x100%

⇔ this can be written as well as : error = (| Experimental value/ theoretical value | - | Theoretical value / Theoretical value | ) x100%

<u>Step 2: Calculate % error</u>

In this case, this means :

%error = ( |(4.45 cm - 4.06cm ) / 4.06cm | ) x100%

%error = 0.096 x100%

%error =9.6 %

3 0
3 years ago
Which element experiences greater London dispersion forces
natali 33 [55]
Its d its the only one that makes sense


8 0
3 years ago
The mass of the erlenmeyer flask alone is 88.000 grams. calculate the mass of the zinc and hcl after the addition of 25 grams of
arsen [322]
If concentration of HCl is 1 mol/dm³ :
m(<span>erlenmeyer flask) = 88,00 g.
m(Zn) = 25,0 g.
V(HCl) = 15 ml = 15 cm</span>³ = 0,015 dm³.
Chemical reaction: Zn + 2HCl → ZnCl₂ + H₂.
n(HCl) = c(HCl) · V(HCl).
n(HCl) = 1 mol/dm³ · 0,015 dm³ = 0,015 dm³.
n(Zn) = 25 g ÷ 65,4 g/mol = 0,38 mol.
n(H₂) = 0,015 mol ÷ 2 = 0,0075 mol.
m(H₂) = 0,0075 mol · 2g/mol =  0,015 g.

7 0
3 years ago
The graph shows the changes in the phase of ice when it is heated.
Lesechka [4]

Answer:

100 °C, because it is the boiling point of water.

Explanation:

3 0
2 years ago
When forming an ion, iodine will do which of the following?
Mariana [72]

Answer:

B

Explanation:

Iodine has a negative charge, so it will gain electrons.

4 0
2 years ago
Other questions:
  • Which type of reaction does this diagram represent? A central starburst has superscript 2 upper H and superscript 3 upper H poin
    11·2 answers
  • WOULD YOU TRUST ME WITH YOUR NUMB ER
    7·2 answers
  • In a system when energy is transformed from one form to another
    5·1 answer
  • Please help me solve? Chemistry
    7·1 answer
  • How many moles are there in 9.6 x 10²⁵ atoms of Oxygen?
    12·1 answer
  • Which of the following is not true of chemical changes? (2 points)
    6·1 answer
  • How much heat is required to completely melt 1.37 mol of solid isopropyl alcohol at its melting point?
    7·1 answer
  • Need help please on this EDPUZZLE
    6·1 answer
  • I NEED HELP WITH THESE! PLEASEEE
    9·1 answer
  • For the readion 2Na + Ch&gt; 2NaCl, how many grams of Ch are required to read completely with 450 g Na
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!