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
uranmaximum [27]
3 years ago
15

Q # 6 which of the following equations has correct formulas and also is a balanced equation?

Chemistry
1 answer:
LuckyWell [14K]3 years ago
8 0

Answer:- a)   2Be+O_2\rightarrow 2BeO

First equation is correct since Be is an alkaline earth metal and it has +2 charge. Oxygen also has -2 charge so the formula of beryllium oxide is BeO. Since, oxygen is diatomic, it is written as O_2 and then to balance the equation we need to multiply Be and BeO by 2 and the balanced equation is:  2Be+O_2\rightarrow 2BeO

Second equation is not balanced for hydrogen and potassium. There was actually no need to multiply KCl and HCl by 3. It could simply be written as:

KCl+HNO_3\rightarrow HCl+KNO_3

Third equation is not correct as the product formula is wrong. Mg has +2 charge and O has -2 charge, so the product will be MgO and the balanced equation must be written as:

2Mg+O_2\rightarrow 2MgO

Fourth equation is not correct since metal carbonates gives metal oxide and the carbon dioxide gas on decomposition. Calcium carbonate and calcium oxide formulas are written correctly but the carbon dioxide formula is not written correctly. It must should be [tex[CO_2[/tex] where they have written CO_3  and the correct equation is written as:

CaCO_3\rightarrow CaO+CO_2


You might be interested in
How do you make a model of something you cannot see?
Vedmedyk [2.9K]
You have to imagine it
8 0
2 years ago
Read 2 more answers
What kind of chemical bond is formed between nonmetals? Explain your answer.
REY [17]

Answer:

The ionic bond is formed due to an electrostatic force of attraction between two oppositely charged ions. This bond is usually formed between a metal and a nonmetal. Prior to the electrostatic attraction, there is a total transfer of valence electrons from one atom to the other atom.

Explanation: hope that helps

5 0
3 years ago
Help in chem please!!!!!!
IgorLugansk [536]

This is a one-step unit analysis problem.  Since we are staying in moles, grams of our compound, and thus molar mass, is not needed.

1 mole is equal to 6.022x10²³ particles as given, so:

1.5x10^{24} particles FeO_{2} (\frac{1mol}{6.022x10^{23}particles } )=2.49 molFeO_{2}

<h3>Answer:</h3>

2.49 mol

Let me know if you have any questions.

3 0
3 years ago
Which is the correct definition of density
xxTIMURxx [149]
The correct definition of density is the degree of compactness of a substance.
3 0
3 years ago
Convert 1 bromopropane to bromoethane.​
Dovator [93]

Answer:

The Dehydrohaogenation of 1-bromo propane with alcoholic KOH gives propene which on again hydrohalogenation with HBr gives 2-bromo propane due to Markonikove's rule for addition.

Explanation:

6 0
2 years ago
Other questions:
  • How is the formation of covalent bonds similar to kids sharing markers? how is it different? if possible, discuss your answer wi
    12·2 answers
  • one part of dalton's atomic theory states: compounds are formed by combinations of atoms from two or more elements. is this stat
    14·1 answer
  • Is C2H2 + 2H2 ----- C2H6 a substitution reaction​
    15·1 answer
  • Which of the following has highest first ionization potential among Ne,Mg,Cl and Na​
    8·1 answer
  • Give the number of protons and neutrons in the nucleus of the following atoms
    7·1 answer
  • If you have 2.86 gallons of pure water, how many molecules of water are ionized at any given time ?
    5·1 answer
  • If you have 1.5 grams of silver nitrate, how many grams of silver could<br> you produce?
    15·1 answer
  • Substances that are good conductors of heat and electricity at room temperature usually
    12·1 answer
  • An element with 3 valence electrons would be a
    9·1 answer
  • Which of the following shows the correct path of blood through the heart and lungs?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!