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
Pavel [41]
4 years ago
8

Identify the type of reaction represented by each equation.

Chemistry
2 answers:
MrRissso [65]4 years ago
7 0

Answer : Equation A represents a combination reaction, and equation B represents a combustion reaction.

Explanation :

  • Equation A : H_2+Cl_2\rightarrow 2HCl

In this reaction, hydrogen react with the chlorine to form a single product as hydrogen chloride. So, this reaction is a combination reaction.

Combination reaction : It is a type of chemical reaction in which two or more  reactants combine to produce a single product.

  • Equation B : CH_4+2O_2\rightarrow CO_2+2H_2O

In this reaction, methane is a hydrocarbon react with the oxygen to give carbon dioxide and water as a product. So, this reaction is a combustion reaction.

Combustion reaction : A type of chemical reaction where a hydrocarbon molecule react with the oxygen to produces carbon dioxide and water as a product.

Hence, the Equation A represents a combination reaction, and equation B represents a combustion reaction.

My name is Ann [436]4 years ago
7 0

Equation A represents a combination reaction, and equation B represents a combustion reaction. Hope this helps!

You might be interested in
An atom has an atomic number of 12 and a mass number of 25. How many neutrons does the atom have?
dem82 [27]
Simple. The atomic number is the number of protons (12) and the mass number is the number of neutrons and protons combined. So you'd subtract 12 from 25 (25-12=) and that'd get you 13 as your answer. If you need to find the number of electrons, it'll be the same as the number of protons unless it has a certain charge and if it does, if it's positive it has more protons (+) than electrons (-), if it is negative it has more electrons (- negatively charged) than protons (+ positively charged)
6 0
3 years ago
What is the molality of a solution made by dissolving 50.00 g of glucose, C6H12O6, in 500.0 g water. Give your answer to 3 signi
hichkok12 [17]

Answer:

m = 0.5556 mol/kg

Explanation:

The molality of any solution is calculated using the following expression:

m = moles solute / kg solvent (1)

So in order to calculate the molality of this solution, we need to calculate the moles of the glucose using the expression:

n = mass / molecular weight  (2)

The molecular weight of glucose, can be calculated using the molecular mass of the atoms in the glucose:

C = 12 g/mol; H = 1 g/mol; O = 16 g/mol

the molecular weight is:

MW = (12*6) + (12*1) + (6*16) = 180 g/mol

Then, the moles of glucose:

moles = 50 / 180 = 0.2778 moles

The solvent in this case is water, and 500 g of water is 0.5 kg of water, so the molality is:

m = 0.2778 / 0.5

m = 0.5556 mol/kg

5 0
3 years ago
Which of these has a bond that takes the most energy to break?
VARVARA [1.3K]

Answer:

Hello! Your answer would be, D) HCI

Explanation:

Hope I helped! Ask me anything if you have any questions. Brainiest plz!♥ Hope you make a 100%. Have a nice morning! -Amelia♥

8 0
3 years ago
All of the following are evidence that a chemical reaction has occurred except ______.
White raven [17]
D. all of the above are evidence of a chemical reaction
6 0
3 years ago
Which sequence of atomic numbers represents elements which have similar chemical properties
VashaNatasha [74]
A rule of thumb is that elements in the same column or "group" have similar chemical properties. Answer D. has four elements that are all in group 2, or the "alkaline earth metals". The answer is <span>D. 4, 20, 38, 88</span>
3 0
3 years ago
Read 2 more answers
Other questions:
  • Manganese-58 has a half-life of about 3 seconds. If you have a 90.0 gram sample, how
    5·1 answer
  • The __is (are) an example of a transform boundary.
    10·1 answer
  • A mixture of CrBr3 and inert material is analyzed to determine the Cr content. First the mixture is dissolved in water. Then all
    7·1 answer
  • How many kJ of heat are released by the reaction of 25.0 g of Na2O2(s) in the following reaction? (M = 78.0 g/mol for Na2O2)
    7·1 answer
  • What is Cu,As,Ca,Br listed from most metallic to least metallic?
    11·1 answer
  • Ap LSCHpnGKIASAJQSMZc4qoidborFmvFig/USHTVPBWHqozowvg Viewo
    5·1 answer
  • Name this alkane.
    6·2 answers
  • 28. If the total pressure of a mixture of four gases (neon, carbon dioxide, oxygen and hydrogen) is 1245 mm
    6·1 answer
  • If I have 2.4g of magnesium, how many g of oxygen(O2 ) will I need to react completely with the magnesium? 2Mg +O2 → MgO
    10·1 answer
  • Questions and answers about isotopes grade 8 I need this for a PowerPoint exam projects
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!