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
just olya [345]
3 years ago
12

How do double replacement reactions relate to Combustion reactions

Chemistry
1 answer:
andriy [413]3 years ago
3 0

Explanation:

A single-replacement reaction replaces one element for another in a compound.

A double-replacement reaction exchanges the cations (or the anions) of two ionic compounds.

A precipitation reaction is a double-replacement reaction in which one product is a solid precipitate.

Solubility rules are used to predict whether some double-replacement reactions will occur.

You might be interested in
Manganese (Mn) is a silver-colored metal. It
vladimir1956 [14]

Answer:

A.

Explanation:

Manganese (Mn) is a silver-colored metal. It reacts with oxygen to form manganese oxide (MnO2), which has two oxygen atoms for every manganese atom. Which statement describes the properties of manganese oxide? It will be a gas because there are more oxygen atoms.

8 0
3 years ago
Send friend requests to me in return you get points for this question.
ser-zykov [4K]

In the Bohr's Model of the atom, the protons are located in the nucleus. The electrons move around the nucleus. I hope this helps in some way. (:

3 0
4 years ago
What is the expected freezing point of a 0.50 m solution of na2so4 in water kf for water is 1.86°c/m?
Anna007 [38]

Colligative properties calculations are used for this type of problem. Calculations are as follows:<span>


ΔT(freezing point)  = (Kf)m
ΔT(freezing point)  = 1.86 °C kg / mol (0.50 mol/kg)
ΔT(freezing point)  = 0.93 °C
Tf - T = 0.93 °C
<span>T = -0.93 °C</span></span>

4 0
3 years ago
Read 2 more answers
(4Ga + 3S2 → 2Ga2S3)
nexus9112 [7]

Answer:

n_S=1.076molS

Explanation:

Hello,

In this case, given the undergoing chemical reaction, we can see a 4:3 mole ratio between the consumed moles of gallium and sulfur respectively, therefore, the consumed moles of sulfur, from the 100.0 g of gallium (use its atomic mass) turn out:

n_{S}=100.0gGa*\frac{1molGa}{69.72gGa}*\frac{3molS}{4molS}  \\\\n_S=1.076molS

Best regards.

7 0
3 years ago
1 C3H8 + 5 O2 --&gt; 3 CO2 + 4H20. If 1.5 moles of C3H8 react, how many
UNO [17]

Answer:

First confirm the reaction is balanced:

C3H8 + 5O2 --> 3CO2 + 4H20 (3 cabon - check; 8 hydrogen - check; 10 oxygen - check).

a) In the equation there is a 5:1 ratio between propane and oxygen.  We also know that number of mole is proportional to pressure and volume.  Since pressure is constant (STP) then the volume of O2 is 7.2 * 5 = 36 litres.

b) For a near ideal gas that PV = nRT (combined gas law).  So for 7.2 litres propane we find n(propane) = 101.3 * 7.2/8.314*298 ~ 0.29 mole (using metric units throughout for simplicity).

There is a 1:3 ratio between propane and CO2.  Therefore 3 * 0.29 = 0.87 mole of CO2 is produced.

MW(CO2) ~ 44 g/mol.  Therefore m(CO2) = 44 * 0.87 ~ 38.3 g

c) We know we need more oxygen than propane (due to the 1:5 ratio) so oxygen is the limiting reagent.  Again Volume is proportional to number of mole and we see there is a 5:4 ratio between oxygen and water.  Therefore the volume of water vapour produced will be (4/5) * 15 = 12 litres.

The other questions use the same technique and will give you some much needed practice.

Explanation:

7 0
4 years ago
Other questions:
  • Choose the chemical equation that is correctly balanced. 2Ca(s) + Cl2(g) → CaCl2(s) 4Mg(s) + O2(g) → 2MgO(s) Li(s) + Cl2(g) → 2L
    14·2 answers
  • What can I do to improve my basic chemistry?​
    10·2 answers
  • How many elments are found in the following chemical equaction K+ Cl KLC
    15·2 answers
  • HeeeeeeeeeeellllllllllllllpppppppppppppppppppppppppppppppppChoose the false statement about fission.
    15·1 answer
  • When metals react with other elements what happens to the valence electrons of the metal atoms?
    5·1 answer
  • Number 9 based on the diagram above
    6·1 answer
  • Glaciers have caused extensive erosion in all of these places except:
    15·2 answers
  • Jamesv harrison can bench press 500 pounds. How many kilograms is that
    10·2 answers
  • Sarita measures the mass and volume of a metal cube. The average mass is 25.3 +0.3 g. The average
    8·1 answer
  • Help ASAP I will mark brainliest to he correct answer
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!