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
cluponka [151]
3 years ago
14

Which of the following statements is the most accurate? A. Energy transfers are never 100% efficient. B. Energy transfer is comp

letely efficient. C. Energy cannot be transferred to other forms. D. Energy transfers can be used to create perpetual-motion machines.
Chemistry
2 answers:
qaws [65]3 years ago
6 0
I'd say it's A because while the energy cannot be lost, it can not be 100% efficient because if it was we wouldn't have to worry about energy.
Olegator [25]3 years ago
5 0

Answer:

A. Energy transfers are never 100% efficient

Explanation:

According to the  first law of thermodynamics energy can neither be created nor destroyed but it can be converted from one form to another. According to the second law of thermodynamics transfer of energy is never 100% efficient in a machine. There is always loss of energy due to wear and tear of the machinery.

You might be interested in
Which object represents a simple machine? A)battery B)pliers C)Match D)candle
Anna35 [415]
Battery represents a simple machine
6 0
3 years ago
Read 2 more answers
How do you decide whether an observed property of matter is a physical or a chemical property?
Otrada [13]
By the object's composition and the acting agent to which factors the change of the substance or entity.
<span>The effect of physical property of matter on the object or substance can be better identified when the object doesn't change in composition or in nature. Unlike chemical property which has changed in its composition and atomic structure that was caused by chemical change or reaction due to an agent. Physical property is identified thru physical reactions or changes that has never changed the object in an atomic level, like cutting paper into smaller sizes. The aforementioned example illustrates physical proerty but being cut into smaller buts without changing the object from paper to any other substance, thus, its structure remain and its still called paper regardless of size, mass and texture. <span>
</span></span>
8 0
3 years ago
Read 2 more answers
21. What is the frequency, given 2-3 x 10¹m? Show all work
Aloiza [94]

Answer:

Frequency is 2Hz

Explanation:

5 0
1 year ago
When cyclohexene is treated with KMnO4, H2O, the syn-1,2-diol is produced. What reaction occurs when benzene is similarly treate
Ulleksa [173]

Answer:

No reaction is observed

Explanation:

The benzene ring is aromatic. Being an aromatic ring, the benzene ring is remarkably stable to all reactions that destroy the aromatic ring.

Alkenes are oxidized to alkanols in the presence of KMnO4 but this reaction does not occur with benzene. However, substituted benzenes having hydrogen atoms attached to the substituent carbon atom can be oxidized to the corresponding carboxylic acid.

7 0
3 years ago
D 6) Select True or False.
Mama L [17]

Answer:

true

Explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • Kia is doing an experiment in science lab. She is given a beaker containing 100 g of liquid. The beaker has markings on the side
    5·2 answers
  • This is no help<br> Ok so bydhcvx
    13·2 answers
  • I need a science fair topic and the science fair is in 3 days
    11·2 answers
  • What is the molarity of 2 moles of iron oxide,FeO in 8 Liters of water
    9·1 answer
  • 39. Which bond is least polar?<br> A) As-C1<br> B) Bi-CI<br> C) P-CI<br> D) N-C1
    10·1 answer
  • How can I find the answer for this ?
    14·1 answer
  • What's a design constraint?
    10·1 answer
  • If starch, glucose and NaCl are soaked in the dialysis tubing , will there be a difference between the beginning and after 15min
    14·1 answer
  • You run an experiment to test the effects of temperature on solubility. What would you heat? A.) solvent B.) solute C.) the room
    9·2 answers
  • If 3.13 mol of an ideal gas has a pressure of 2.33 atm and a volume of 72.31 L, what is the temperature of the sample in degrees
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!