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
olya-2409 [2.1K]
3 years ago
14

Write the overall balanced equation for the reaction of magnesium and hcl to form hydrogen gas

Chemistry
1 answer:
miv72 [106K]3 years ago
4 0
The balanced equation:
Mg+2HCl⇒ MgCl₂+H₂
You might be interested in
How many liters are equivalent to 12 US gallons?
Ksju [112]

Answer: 45.4249

Explanation:

3 0
3 years ago
Read 2 more answers
What is the ending substance of? <br><br> C + H2O → CO + H2
SOVA2 [1]
H2=Hydrogen is the answer to what is H2 in chemistry.
7 0
2 years ago
Read 2 more answers
Builders and dentists must store plaster of Paris,
eimsori [14]

Answer:

547 L of water vapour

Explanation:

Equation of reaction: 2[CaSO4.2H20] + Heat ---> 2[CaSO4.½H2O] + 3H20

From the equation of reaction above, 2 moles of gypsum when heated produces 2 moles of plaster of Paris and 3 moles of water vapour.

Molar mass of gypsum = 172 g/mol

Molar mass of H2O = 18 g/mol

Therefore, 2 * 172 g of gypsum produces 3 * 18 g of water vapour

i.e. 344 g of gypsum produces 54 g of H2O

2 Kg(2000 g) of gypsum will produce (54 * 2000)/344 g of water vapour = 313.95 of water vapour.

Volume of water vapour produced = mass/density

Volume of water vapour = 313.95 g/ 0.574 g/L = 547 L of water vapour

Therefore 547 L of water vapour are produced

3 0
3 years ago
The three end stages of stars are Red Giant Phase, Second Red Giant Phase and White Dwarf Phase correct?
solong [7]

Answer: Most of the stars in the universe are main sequence stars — those converting hydrogen into helium via nuclear fusion. A main sequence star may have a mass between a third to eight times that of the sun and eventually burn through the hydrogen in its core. Over its life, the outward pressure of fusion has balanced against the inward pressure of gravity. Once the fusion stops, gravity takes the lead and compresses the star smaller and tighter.

Temperatures increase with the contraction, eventually reaching levels where helium is able to fuse into carbon. Depending on the mass of the star, the helium burning might be gradual or might begin with an explosive flash.

6 0
3 years ago
When dissolved in water, which of the following would conduct electricity the best?
Nitella [24]
Charged particles or ionic particles?
6 0
3 years ago
Other questions:
  • space capsules operate with an oxygen content of about 34%. assuming a total pressure of 780 mm Hg in the space capsule, what is
    14·1 answer
  • What kind of lens does a nearsighted person need
    8·2 answers
  • I need help for the Newton’s of second law
    7·1 answer
  • Explain halogens reactivity in terms of outer electron’s distance from nucleus and electronic shielding
    11·1 answer
  • Will mark as Brainliest.
    12·1 answer
  • These two particles are located in the nucleusof an atom.A) electronsB) protonsC) neutronsD) B and C
    9·1 answer
  • 1.One gram-atom of Nitrogen is heavier than one gram-atom of Oxygen.
    8·1 answer
  • Explain why the surface of the tire melts.
    13·1 answer
  • Neutrons are very important to an atom's ________<br> properties
    15·1 answer
  • A change that produces a new substance is a _______ change
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!