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
salantis [7]
3 years ago
7

Write the chemical formula of tetraphosphours octasulfide

Chemistry
1 answer:
ArbitrLikvidat [17]3 years ago
8 0

Answer:

P4 S8

Explanation:

You might be interested in
Give three reasons why fluid spills in water are more damaging than fluid spills on land
marta [7]

Answer:

1) Oil is less dense than water so when oil spills, it spreads across the entire water surface.

2) The oil spreads very quickly with lighter oils such as gasoline.

3) Wind, Currents, and Warm Temperatures will cause Oil to spread quicker.

7 0
2 years ago
A pharmacist wishes to strengthen a mixture from 10%alcohol to 30% alcohol. How much pure alcohol should be added to 7 liters of
Tomtit [17]

Answer:

2 litres of pure alcohol will be added to make the overall concentration of 9 litres of mixture as 30%.

Explanation:

Suppose x is the number of litres added to the 10% mixture than the quantity of new mixture is given as below

  • n_{old}=7 litres
  • n_{new}=7+x litres

Also the quantity of alcohol is given as

  • q_{old}=10 \% \, of \, 7 \, litres =0.7
  • q_{added}=x
  • q_{new}= 30 \% \,of \,new\, quantity = 0.3(7+x)

Now the equation is as

                                  q_{old}+q_{added}=q_{new}\\0.7+x=0.3(7+x)\\0.7+x=2.1+0.3x\\x-0.3x=2.1-0.7\\0.7x=1.4\\x=2 \, litres

So 2 litres of pure alcohol will be added to make the overall concentration of 9 litres of mixture as 30%.

8 0
3 years ago
Given 7.45 g of butanoic acid and excess ethanol, how many grams of ethyl butyrate would be synthesized, assuming a complete 100
KengaRu [80]

The equation for the reaction is:

C₄H₈O₂ + C₂H₅OH = C₆H₁₂O₂ + H₂O

Now you see that the number of the moles of butanoic acid and etyl butyrate is equal in

the reaction. That means;

number of moles of C₄H₈O₂ = number of moles of C₆H₁₂O₂

mass of C₄H₈O₂/ Molar mass of C₄H₈O₂ = mass of C₆H₁₂O₂/ molar mass of C₆H₁₂O₂

mass of C₆H₁₂O₂ = molar mass of C₆H₁₂O₂ x mass of C₄H₈O₂/ Molar mass of C₄H₈O₂

Now, assuming <span>100% yield, the mass of ethyl butyrate produced is: </span>

<span>= 7.45/88.11 x 116.16</span>

<span>=9.82g</span>

<span>Thus, the theoretical yield of ethyl butyrate is 9.82g.</span>

3 0
3 years ago
Which term describes a substance that increases the concentration of hydroxide ions in solution?
steposvetlana [31]
Arrhenius definition of a base

An Arrhenius base is a substance that increases the concentration of OH- ions when dissolved in water.
5 0
3 years ago
Read 2 more answers
ILL GIVE BRAINLIST IF YOU GET IT RIGHT Which of the following is an example of gravitational potential energy?
FinnZ [79.3K]
A glass jar sitting on a shelf.

If the shelf gets tipped the jar will slide off and convert to kinetic energy as gravity pulls it to land on the next level/floor
6 0
2 years ago
Other questions:
  • In the formation of potassium chloride, the product, KCl, has less energy than the reactants, K and Cl2. This reaction is .
    12·1 answer
  • Calculate the energy required to ionize a ground state hydrogen atom. report your answer in kilojoules.
    9·1 answer
  • How many electrons does oxygen have in its outer shell?
    10·1 answer
  • Describe the cell structure of a typical plant cell
    15·1 answer
  • Gasoline has a density of 0.749 g/mL. There are 454 grams in a pound and 3.7854 litres in a gallon. How many pounds does 19.2 ga
    15·1 answer
  • The atomic mass of a atom (in amu) is equal to
    10·2 answers
  • 1. If 100 mL of a gas, originally at 760 torr, is compressed to a pressure of 120 kPa
    9·1 answer
  • What two aspects of a force do scientists measure?
    9·2 answers
  • The work is in the photo can i get answers please (;´༎ຶٹ༎ຶ`)​
    15·1 answer
  • What effect would a decrease or increase in barometric pressure have on the boiling point
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!