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
Darya [45]
3 years ago
13

A simple machine produces 25 joules of output work for every 50 joules of input work . What is the efficiency of this machine ?

Snow work too plz
Chemistry
1 answer:
nataly862011 [7]3 years ago
8 0
2:1, output is half the input
You might be interested in
What is the ground-state electron configuration of the sulfide ion s2− in condensed form?
SIZIF [17.4K]

S^{2-}: [Ar]

5 0
2 years ago
Una solución formada por 58 gramos de cloruro de sodio (NaCl) en 100 mL de solución posee una concentración
masya89 [10]

Answer:

58

Explanation:

8 0
3 years ago
Planet A is an inner planet with no moon and hardly any atmosphere. Planet B is an inner planet with no moon but with a dense at
postnew [5]
I think the answers are Mars and Venus
7 0
3 years ago
DDT, an insecticide harmful to fish, birds, and humans, is produced by the following reaction. 2 C6H5Cl + C2HOCl3 → C14H9Cl5 + H
Elena-2011 [213]

Answer:

1,070.41 grams of DDT will be formed .Explanation:

1) 2 C_6H_5Cl + C_2HOCl_3\rightarrow C_{14}H_9Cl_5 + H_2O

Moles of chlorobenzene = \frac{1197 g}{112.5 g/mol}=10.64 mol

According to reaction, 2 moles of chloro benzene reacts with 1 mole of chloral . Then 10.64 moles of chloro benzene will react with :

\frac{1}{2}\times 10.64 mol=5.32 mole of chloral

2) Moles of chloral = \frac{456 g}{147.5 g/mol}=3.0915 mol

According to reaction, 1 moles of chloral reacts with 2 mole of chlorobenzene . Then 3.0915 moles of chloral will react with :

\frac{2}{1}\times 3.0915 mol=6.1830 mol of chloro benzene

As we can see that chloral is in limiting amount and chloro benzene is in excessive amount. So, amount of DDT will depend upon amount of chloral.

According to reaction, 1 mole chloral gives 1 mole DDT.Then 3.0195 moles of chloral will give :

\frac{1}{1}\times 3.0195 mol=3.0195 mol

Mass of 3.0195 moles of DTT :

3.0195 mol × 354.5 g/mol = 1,070.41 g

1,070.41 grams of DDT will be formed .

3 0
3 years ago
Which of these solutes raises the boiling point of water the most?
lubasha [3.4K]
(E) ionic aluminum fluoride (AlF3)
7 0
3 years ago
Other questions:
  • When dry ice goes from a solid straight to a gas, it is known as a(n):
    13·1 answer
  • Why is photosynthesis an example of chemical change, and why is it classified as endothermic?
    6·1 answer
  • A student graphed distance versus time for an object that moves 14 every 2 s. What is the speed of the object?
    11·1 answer
  • The system of electrons surrounding the nucleus of an atom
    13·1 answer
  • The sugar deoxyribose is an important component of DNA. Deoxyribose is 44.8% 7.5% H, and 47.7% O by mass. What is the empirical
    5·1 answer
  • Oily vegetable or animal substances are _ (choose only one answer)
    15·1 answer
  • How many atoms are in 5Cao4?
    12·1 answer
  • Is this true or false ?
    12·2 answers
  • Which of the following is one way to prevent air pollution ill give brainiest if you don't copy the answers from the first perso
    15·1 answer
  • 23.<br> What would happen to the substance in the jar if energy was added?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!