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
brilliants [131]
3 years ago
10

WHICH CHEMICAL EQUATION IS BALANCED? A.H2O--->H2+202 B.2H20--->2H2+02 C.2H20---->H2+202 D.H20--->2H2+202

Chemistry
2 answers:
NeX [460]3 years ago
7 0
A.
the left side - 2 atoms of hydrogen, 1 atom of oxygen
the right side - 2 atoms of hydrogen, 4 atoms of oxygen
not balanced

B.
the left side - 4 atoms of hydrogen, 2 atoms of oxygen
the right side - 4 atoms of hydrogen, 2 atoms of oxygen
balanced

C.
the left side - 4 atoms of hydrogen, 2 atoms of oxygen
the right side - 2 atoms of hydrogen, 4 atoms of oxygen
not balanced

D.
the left side - 2 atoms of hydrogen, 1 atom of oxygen
the right side - 4 atoms of hydrogen, 4 atoms of oxygen
not balanced

The answer is B.
Alchen [17]3 years ago
3 0

Answer:

answer B

Explanation:

You might be interested in
Why do group 7 elements have higher melting and boiling points going down?
Genrish500 [490]

Answer:

this is because the van der waals forces or also known as induced dipole-dipole interactions increase because more electrons are present within an atom as you go down

Explanation:

-

8 0
3 years ago
When body temperature rises during physical activity, which thermoregulatory response is stimulated?
navik [9.2K]

Answer: Heat dissipation mechanism

Explanation: Heat dissipation mechanism is a thermoregulatory response in humans whereby the hypothalamus of the brain initiates certain processes to reduce the high body temperature. Eg, sweating is initiated which helps cool down the body temperature, also superficial arteries are dilated, thereby leading to flushing and decreasing heatloss into the air. And metabolic heat production is also reduced.

8 0
3 years ago
The smallest particle to retain the properties of an element is an?
svlad2 [7]
I’m so sorry explain it more
4 0
3 years ago
A gas is at a pressure of 3.70 atm. What is this pressure in kilopascals?
Yanka [14]
Answer:
                =   374.90 kPa 

Calculation:
                  As we know atm and kiloPascal are related to each other as,

                                         1 atm  =  101.325 kPa
So,
                                    3.70 atm  =   X
Solving for X,
                                     X  = (3.70 atm × 101.325 kPa) ÷ 1 atm

                                     X  =  374.90 kPa 
7 0
3 years ago
isotopes of an element have the same number of protons but a different number of neutrons below u will see the nucleus of four d
dexar [7]
What is your question? Its not clear
3 0
3 years ago
Other questions:
  • The grains of sedimentary rock
    15·1 answer
  • Draw the Lewis Structure for NI3.
    10·1 answer
  • A child is on a pogo stick. At the top of her jump, her kinetic energy (KE) = 0 J, her gravitational potential energy (GPE) = 10
    8·1 answer
  • 1. The red light associated with the aurora borealis is emitted by excited oxygen atoms. This
    8·1 answer
  • According to the VSEPR model, the progressive decrease in the bond angles in the series of molecules CH₄, NH₃, and H₂O is best a
    11·1 answer
  • Answer:
    9·2 answers
  • Which bond from each set has the greatest bond energy and why?. A.) N-O or N-F. B.) B-F or B-Cl. C.) B-C or O-F. D.) C-O or C=O.
    10·2 answers
  • plz answer fast Which is not a crystalline allotrope of carbon? Select one: a. soot b. diamond c. graphite
    11·1 answer
  • H E L P <br> M E H <br> P L E A S E
    9·1 answer
  • How many moles contain 9.75x10^20 molecules of carbonic acid?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!