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
madreJ [45]
3 years ago
6

Oxygen is a reactant in a combination reaction, which always produces energy in the form of heat and light. A. True B. False

Physics
2 answers:
harkovskaia [24]3 years ago
8 0
The answer is B.False
allsm [11]3 years ago
7 0

Answer: The given statement is false.

Explanation:

Combination reactions are defined as the reactions in which two or more substances that can be either elements or compounds when combine together then they result in the formation of a single compound.

For example, 2Ca + O_{2} \rightarrow 2CaO

Also, when oxygen atom combines with another substance then it is known as a combustion reaction. And, a combustion reaction will always release energy as they are exothermic in nature.

But is not necessary that light will always be produced in a combustion reaction.

Hence, we can conclude that the statement oxygen is a reactant in a combination reaction, which always produces energy in the form of heat and light, is false.

You might be interested in
The membrane of a living cell can be approximated by a parallel-plate capacitor with plates of area 4.50×10−9 m2 , a plate separ
Marizza181 [45]

The energy stored in the membrane is 6.44\cdot 10^{-14} J

Explanation:

The capacitance of a parallel-plate capacitor is given by

C=\frac{k\epsilon_0 A}{d}

where

k is the dielectric constant of the material

\epsilon_0 is the vacuum permittivity

A is the area of the plates

d is the separation between the plates

For the membrane in this problem, we have

k = 4.6

A=4.50\cdot 10^{-9} m^2

d=8.1\cdot 10^{-9} m

Substituting, we find its capacitance:

C=\frac{(4.6)(8.85\cdot 10^{-12})(4.50\cdot 10^{-9})}{8.1\cdot 10^{-9}}=2.26\cdot 10^{-11} F

Now we can find the energy stored: for a capacitor, it is given by

U=\frac{1}{2}CV^2

where

C=2.26\cdot 10^{-11} F is the capacitance

V=7.55\cdot 10^{-2} V is the potential difference

Substituting,

U=\frac{1}{2}(2.26\cdot 10^{-11} F)(7.55\cdot 10^{-2})^2=6.44\cdot 10^{-14} J

Learn more about capacitors:

brainly.com/question/10427437

brainly.com/question/8892837

brainly.com/question/9617400

#LearnwithBrainly

6 0
3 years ago
Trong thí nghiệm về giao thoa sóng trên mặt nước gồm hai nguồn kết hợp S1S2 cách nhau 15 cm với dao động với tần số 30Hz. Tốc độ
mojhsa [17]

Answer:

this is a difficult question but I will try to answer it answer for this is 3220 a + b b u s y d l new

6 0
3 years ago
Mechanical energy is the sum of<br> energy and potential energy.
MAVERICK [17]

Answer:

True, the total amount of mechanical energy is merely the sum of the potential energy and the kinetic energy. This sum is simply referred to as the total mechanical energy.

Explanation: Hope it helps you:))))

have a good day

7 0
2 years ago
Which wind blows 30 latitude in both hemisphere almost to the equator
andriy [413]
Trade winds
Hope it help
7 0
3 years ago
Which weather condition commonly occurs along a cold front
aleksklad [387]
Precipitation is your answer. according to my science textbook, in a cold front, warm air and cold air interact and cause precipitation.
7 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following statements describes Newton's second law?
    10·2 answers
  • A bug flies at a velocity of 0.75 m/s into an oncoming breeze blowing at 0.25 m/s. What is the resultant velocity of the bug?
    8·1 answer
  • According to Ohm's law, a circuit with a high resistance _____. will have a low electric current will have a high electric curre
    10·2 answers
  • Which forces causes oppositely charged particles to attract each other?
    11·1 answer
  • A substance changes state from solid to liquid. What has happened?
    14·2 answers
  • I've been stuck on this question for two weeks, please help... :,)
    14·2 answers
  • When a bow releases an arrow, the arrow
    13·2 answers
  • A student decides to give his bicycle a tune up. He flips it upside down (so there's no friction with the ground) and applies a
    5·1 answer
  • Is telekinesis real??? I really wanna start learning it!
    11·1 answer
  • Answer me fast. Find velocity in Acceleration Time Graph.​
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!