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
aev [14]
3 years ago
5

What explains the fact that no machine is 100 percent efficient?

Chemistry
2 answers:
katrin2010 [14]3 years ago
8 0
The answer to this is C
const2013 [10]3 years ago
4 0
Your answer here is C.
You might be interested in
What is the temperature of the freezing point of water in celsius?
LuckyWell [14K]
It is 0 gradus in celcius
6 0
3 years ago
Read 2 more answers
What is the volume of 0.80 grams of O2 gas at STP? (5 points) Group of answer choices 0.59 liters 0.56 liters 0.50 liters 0.47 l
Anarel [89]

Answer:

0.56 liters

Explanation:

First we <u>convert 0.80 grams of O₂ into moles</u>, using its molar mass:

  • 0.80 g ÷ 32 g/mol = 0.025 mol

At STP, 1 mol of any given mass occupies 22.4 L. With that information in mind we <u>calculate the volume that 0.025 moles of O₂ gas would occupy</u>:

  • 0.025 mol * 22.4 L/mol = 0.56 L

Thus the answer is 0.56 liters.

3 0
3 years ago
Changing the number of ___ gives an atom a neutral charge or causes it to take on a positive or negative charge. (pick on that b
artcher [175]

Answer:

g

Explanation:

7 0
3 years ago
Use a chemical equation to show how aqueous hno3 fits the definition of an acid
Lunna [17]
An acid has several definitions one would be that it is a proton donor and an electron donor. Also, it said to produce an H+ ion when in solution. For nitric acid in solution, it dissociates into ions which are NO- ions and H+ ions. So, it must be an acid. It has a dissociation reaction:

HNO3 = H+ + NO3-
7 0
3 years ago
What is the unit for IMA
Tatiana [17]

Answer:

Newton Joules

Explanation:

8 0
3 years ago
Other questions:
  • Match the organelles to their functions.
    11·2 answers
  • Suppose you have 100 grams of radioactive plutonium-239 with a half-life of 24,000 years. how many grams of plutonium-239 will r
    12·1 answer
  • How can you make a solution saturated?
    14·2 answers
  • Vascular plants can be divided into three categories. These categories are
    11·1 answer
  • What is the Noble gas notation for mercury (Hg)?.
    13·1 answer
  • 2. What type of element is most abundant: metals, nonmetals, or metalloids
    5·2 answers
  • Why is it best to use a white
    11·1 answer
  • Help bc i need it lol
    13·1 answer
  • The picture below shows an open field with wildflowers.
    10·1 answer
  • What are the words for each blank spot?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!