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
babunello [35]
3 years ago
12

How many grams of magnesium metal will react completely with 5.2 liters of 4.0 M HCl? Show all of the work needed to solve this

problem. Mg (s) + 2HCl (aq) yields MgCl2 (aq) + H2 (g)
Chemistry
1 answer:
Temka [501]3 years ago
8 0
Mghcl14 + H2 = mghclh 16 work needed to solve this problem
You might be interested in
(50 POINTS!)
aleksandrvk [35]

Answer:

Can I get my 50 points now?

Explanation:

The helium is formed during the natural radioactive decay of elements such as uranium and thorium. These heavy elements were formed before the earth but they are not stable and very slowly, they decay. One mode of decay for uranium is to emit an alpha-particle.

7 0
3 years ago
Read 2 more answers
Why do we use copper for iPhone chargers
juin [17]
You should contact apple about that!
4 0
3 years ago
Summarize the process a scientist goes through to come up with a<br> satisfactory solution.
maria [59]
Guess and check, test, trial and error, completion.
6 0
3 years ago
Rate = K[A]
Aleks [24]

Answer:

9 × 10⁻³ mol·L⁻¹s⁻¹  

Explanation:

Data:

  k = 1 × 10⁻³ L·mol⁻¹s⁻¹

[A] = 3 mol·L⁻¹

Calculation:

rate = k[A]² = 1 × 10⁻³ L·mol⁻¹s⁻¹ × (3 mol·L⁻¹)² = 9 × 10⁻³ mol·L⁻¹s⁻¹

8 0
3 years ago
How many grams of CaCl2 are in 250 mL of 2.0 M CaCl2?
Tom [10]
The answer is:  " 56 g CaCl₂ " .
__________________________________________________________

Explanation:
__________________________________________________________
2.0 M CaCl₂  = 2.0 mol CaCl₂ / L  ; 

Since: "M" = "Molarity" (measurement of concentration); 

                  = moles of solute per L {"Liter"} of solution.
__________________________________________________________
Note the exact conversion:  1000 mL = 1 L . 

Given: 250 mL ;   

250 mL = ?  L  ?  ;  


250 mL * (1 L / 1000 L) =  (250/1000) L = 0.25 L . 
___________________________________________________________
 
(2.0 mol CaCl₂ / L ) * (0.25L) = (2.0) * (0.25) mol  = 0.50 mol CaCl₂ ;

We have: 0.50 mol CaCl₂ ;  Convert to "g" (grams):

→ 0.50 mol CaCl₂  .
___________________________________________________________
1 mol CaCl₂ = ? g ?

From the Periodic Table of Elements:

1 mol Ca = 40.08 g

1 mol Cl  =  <span>35.45 g .
</span>
There are 2 atoms of Cl in " CaCl₂ " ;  

→ Note the subscript, "2", in the " Cl₂ " ; 
__________________________________________________________
So, to calculate the molar mass of "CaCl₂" :

40.08 g  +  2(35.45 g) = 

40.08 g  +  70.90 g = 110.98 g ;  round to 4 significant figures; 

                                 → round to 111 g/mol .
__________________________________________________________
So:

→  0.50 mol CaCl₂  = ? g CaCl₂  ? ; 

→  0.50 mol CaCl₂ * (111 g CaCl₂ / mol CaCl₂) ;

                                             = (0.50) * (111 g) CaCl₂ ;

                                             =  55.5 g CaCl₂  ;

                                                → round to 2 significant figures; 

                                                →  56 g CaCl₂ .
___________________________________________________________
The answer is:  " 56 g CaCl₂ " .
___________________________________________________________
6 0
3 years ago
Read 2 more answers
Other questions:
  • A team of ecologists are studying four different ecosystems with varying levels of biodiversity. The ecologists categorize the d
    14·1 answer
  • Neon has 8 electrons in it's outer shell. Does it need to bond? Why or why not?
    13·1 answer
  • What is the partial pressure of the third gas, helium?
    13·1 answer
  • When a river overflows its banks, it deposits sediment over a broad, flat area of land on both sides of the river. This broad fl
    14·1 answer
  • C6H1206 +602 → 6002 + 6H20 AH = -2,799 kJ
    6·1 answer
  • Which statement best describes how electrons fill orbitals in the periodic table? Electrons fill orbitals in order of their incr
    12·2 answers
  • Which term describes the reaction process in a fission reaction?
    10·2 answers
  • Directions: Show all of your work for each of the following problems.
    9·1 answer
  • 10. i really really need help plz don't waste time, thx :)
    5·2 answers
  • ¿Qué establece la ley de la conservación de la materia? Explicar.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!