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
Vaselesa [24]
2 years ago
7

Can someone please help me. Like right now please

Chemistry
1 answer:
EastWind [94]2 years ago
8 0

Answer:

3rd law

Explanation:

when two objects interact, they apply forces to each other of equal magnitude and opposite direction.

You might be interested in
a 1.25g sample of ore containing iron pyrite (FeS2) was pulverized and ignited in air, converting the FeS2 to Fe2O3 and SO2(g).
svp [43]

Answer:

28.9%

Explanation:

Let's consider the following balanced equation.

2 FeS₂ + 11/2 O₂ ⇒ Fe₂O₃ + 4 SO₂

We can establish the following relations:

  • The molar mass of Fe₂O₃ is 159.6 g/mol
  • 1 mole of Fe₂O₃ is produced per 2 moles of FeS₂
  • 1 mole of Fe is in 1 mole of FeS₂
  • The molar mass of Fe is 55.84 g/mol

The amount of Fe in the sample that produced 0.516 g of Fe₂O₃ is:

0.516gFe_{2}O_{3}.\frac{1molFe_{2}O_{3}}{159.6gFe_{2}O_{3}} .\frac{2molFeS_{2}}{1molFe_{2}O_{3}} .\frac{1molFe}{1molFeS_{2}} .\frac{55.84gFe}{1molFe} =0.361gFe

The percent of Fe in 1.25 g of the ore is:

\frac{0.361g}{1.25g} .100\%=28.9\%

4 0
3 years ago
If 32 L of hydrogen react with excess oxygen at STP to form water, how much energy will be released?
Fudgin [204]

Answer:

??????????????????

Explanation:

4 0
2 years ago
If molecule dissociates in water what does it do
natita [175]
It either forms a base or an acid...I think that's the answer you're looking for
4 0
3 years ago
What are valence electrons? how many of a magnesium atom’s 12 electrons are valence electrons?
wlad13 [49]

It has 2 valence electrons.

6 0
3 years ago
Please help I will give brainliest.
iris [78.8K]

Answer:

the second one looks like it so I picked the second one

8 0
3 years ago
Other questions:
  • 10. If you were running an experiment to determine the temperature at
    13·1 answer
  • Explain that : how we explore different between Licl and Nacl
    7·1 answer
  • Which one of the following substances would be the most soluble in CCl4?
    15·1 answer
  • Ninety nine percent of the atmosphere is composed of _____ and _____. water vapor, carbon dioxide nitrogen, oxygen nitrogen, car
    14·2 answers
  • Simplified. The absorption spectra of ions have been used to identify the presence of the elements in the atmospheres of the sun
    8·1 answer
  • Which of the following was a major contribution to chemistry by antoine lavoisier
    7·1 answer
  • PLEASE HELP MEEE I WILL MARK BRAINLIST FOR THIS ITS SUPER SIMPLE....BUT U MUST TYPE EVERYTHING
    9·1 answer
  • What happens to the amount of electrical energy when there are no clouds?
    15·1 answer
  • Why fluorine is more electronegative than both oxygen and chlorine.
    14·1 answer
  • Which side of this proton transfer reaction is favored at equilibrium?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!