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
Semmy [17]
3 years ago
12

HELP 50 POINTS WILL BE AWARDED I need 3-5 sentences that explains the importance of reaction types (combustion decomposition syn

thesis single/double replacement) in determining products
Chemistry
1 answer:
Fofino [41]3 years ago
6 0

Explanation:

Combustion reaction: Type of a chemical reaction in which compound and an oxidant reacts together to form a new product with release of an energy in the form of heat.

Decomposition reaction: Type of a chemical reaction in which compound breaks down into two or more elements or into new compounds.

ABC →  A + B + C

Synthesis reaction: Type of a chemical reaction in which two or more than two reactant reacts together to form a single product.

A + B + C  →  ABC

Single replacement reaction: Type of a chemical reaction in which element reacts with a compound and takes the place of another element in the compound.

A + BC → BA + C

Double replacement reaction: Type of chemical reaction in which two compounds reacts is such a way that the cations and anions of the compounds exchange their places to form new products.

AB + CD  →  AD + CB

You might be interested in
Which is a polar molecule?
Sloan [31]
A polar molecule is when the arrangement of the atoms in molecules are unequal where one end of the molecule has a positive charge while the other end has a negative charge. Examples of a polar molecule are water, ammonia, hydrogen sulfide and sulfur dioxide. The opposite is called a nonpolar molecule. 
5 0
3 years ago
1. Starting with 9.3 moles of O 2 , how many moles of H 2 S will be needed and how many moles of SO 2 will
enyata [817]

Answer:

Moles of H₂S needed = 6.2 mol

Moles of SO₂ produced = 6.2 mol

Explanation:

Given data:

Number of moles of O₂ = 9.3 mol

Moles of H₂S needed = ?

Moles of SO₂ produced = ?

Solution:

Chemical equation:

2H₂S + 3O₂      →    2SO₂ + 2H₂O

Now we will compare the moles of oxygen with H₂S.

                  O₂             :           H₂S

                    3             :             2

                   9.3            :         2/3×9.3 = 6.2 mol

Now we will compare the moles of SO₂ with both reactant.

                   O₂             :            SO₂

                    3              :               2

                   9.3            :         2/3×9.3 = 6.2 mol      

                 H₂S             :            SO₂

                    2              :               2

                   6.2            :          6.2 mol      

So 6.2 moles of  SO₂ are produced.

         

6 0
3 years ago
balance the following reaction. a coefficient of "1" is understood. choose option "blank" for the correct answer if the coeffici
suter [353]

Balanced chemical reaction: 2KCl + Pb(NO₃)₂ → PbCl₂ + 2KNO₃.

According to principle of mass conservation, number of atoms must be equal on both side of balanced chemical reaction.  

KCl is potassium chloride.

Pb(NO₃)₂ is lead(II) nitrate.

KNO₃ is potassium nitrate.

PbCl₂ is lead(II) chloride.

3 0
3 years ago
When 9.2 g of frozen N2O4 is added to a 0.50 L reaction vessel and the vessel is heated to 400 K and allowed to come to equilibr
Amanda [17]

<u>Answer:</u> The value of K_c for the given reaction is 1.435

<u>Explanation:</u>

To calculate the molarity of solution, we use the equation:

\text{Molarity of the solution}=\frac{\text{Mass of solute}}{\text{Molar mass of solute}\times \text{Volume of solution (in L)}}

Given mass of N_2O_4 = 9.2 g

Molar mass of N_2O_4 = 92 g/mol

Volume of solution = 0.50 L

Putting values in above equation, we get:

\text{Molarity of solution}=\frac{9.2g}{92g/mol\times 0.50L}\\\\\text{Molarity of solution}=0.20M

For the given chemical equation:

                 N_2O_4(g)\rightleftharpoons 2NO_2(g)

<u>Initial:</u>          0.20

<u>At eqllm:</u>     0.20-x        2x

We are given:

Equilibrium concentration of N_2O_4 = 0.057

Evaluating the value of 'x'

\Rightarrow (0.20-x)=0.057\\\\\Rightarrow x=0.143

The expression of K_c for above equation follows:

K_c=\frac{[NO_2]^2}{[N_2O_4]}

[NO_2]_{eq}=2x=(2\times 0.143)=0.286M

[N_2O_4]_{eq}=0.057M

Putting values in above expression, we get:

K_c=\frac{(0.286)^2}{0.143}\\\\K_c=1.435

Hence, the value of K_c for the given reaction is 1.435

6 0
3 years ago
A student combines 20.0 grams of hydrogen and 20.0 grams of oxygen in a reaction. According to the law of conservation of mass,
jekas [21]

Answer:

A)20.0grams

Explanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • A rechargeable battery initially stores 3.6 kJ of chemical energy. Anna puts the battery in a flashlight, where 2.1 kJ of energy
    8·1 answer
  • Plz help me guys for 20 points 5th GRADE SCEINCE
    14·2 answers
  • What is the correct description of lactic acid fermentation
    9·1 answer
  • HELP THIS IS SCIENCE (No links or I'll rip off your fingers)
    13·2 answers
  • What is deposition ?
    11·2 answers
  • Calculate the amount of mole of iron produced from the reaction of 15.9 grams of iron oxide.
    12·1 answer
  • How is a tornado different from a hurricane? (a)A tornado causes less damage to an ecosystem. (b)A tornado brings more rain. (c)
    5·1 answer
  • Susie cooked sausages on a barbecue. Fat and water in the sausages changed state. which two changes of state occur during this p
    11·1 answer
  • Prepare a dialogue between two friends about development of society .​
    15·1 answer
  • This is my almost last question plsss help
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!