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
Reika [66]
3 years ago
11

Consider the equation: 4Al + 3O2 = 2Al2O3 Is this equation balanced? Why or why not?

Chemistry
1 answer:
scoray [572]3 years ago
8 0

The equation is balanced. There are 4 aluminium atoms and 6 oxygen atoms on each side.

You might be interested in
A student has the following data: V1 = 822 mL; T1 = 75.0 °C; T2 = 25.0 °C. She uses this data to calculate V1 and gets -274 mL.
luda_lava [24]
Answer to this question is C. Regarding the volume.
4 0
4 years ago
How many liters are in 2.75 ounces? Use the conversion factor: 1 liter = 33.814 ounces Rounded to the result to 3 significant fi
Serggg [28]
1L = 33.814 oz
xL = 2.75 oz

so it's a proportion

1L / 33.814 oz = xL / 2.75

solve for x

(1/33.814) * 2.75 = 0.0813272609 on your calculator, but it's not the answer.

the number in your problem, 2.75 oz, has 3 significant figures. so you can only round this number to 3 significant figures too.

your equipment isn't accurate enough to give a reading to 10 significant figures if that makes sense. you have to give the answer in terms of the term you use with the lowest significant figures.

so with 3 significant figures,
0.0813272609 rounds to
0.0813 L
4 0
3 years ago
Identifica los dos pares conjugados acido-base en cada una de las siguientes reacciones
aliya0001 [1]

Answer:

PULLIN OUT THE COUPE AT THE LOT?

Explanation:

TOLD EM F*&*& 12 F*(&*(& SWAT

8 0
3 years ago
-K-12 Scientific Method
hjlf

Answer:

The correct answer is - scientific law.

Explanation:

A scientific law is an explanation to a well observed phenomenon of the world which is found true every time tested and universal proven fact, but the reason behind the phenomenon and its existence.

To explain the scientific law there will be various explanation that are called scientific theory, however these theories can not be proved.

Thus, the correct answer is - scientific law.

8 0
4 years ago
Human blood contains a buffer of carbonic acid (H_2 CO_3) and bicarbonate anion (HC〖O_3〗^-) in order to maintain blood pH betwee
kirill115 [55]

Kc = [H3O+][HCO3-] / [H2CO3]

Remember that Kc is products over reactants. Also, you do not include liquid water in a Kc expression, since liquid water has no concentration.

6 0
3 years ago
Other questions:
  • Which is the most concentratic acid​
    7·1 answer
  • Potassium hydroxide is used to precipitate each of the cations from their respective solution. determine the minimum concentrati
    15·1 answer
  • Fireworks exploding in the sky and giving off light are examples of endothermic or exothermic change
    15·1 answer
  • What is the chief chemical property of ethers?
    10·1 answer
  • Mass is the ________(1)________, where as depth is the ________(2)________
    8·1 answer
  • Which of the following is not an indication of a chemical reaction?
    5·2 answers
  • How does the modern periodic table arrange elements?
    5·2 answers
  • You have an atom with 3 protons ,4 neutrons ,and 3 electrons .adding a neutron will ...
    7·2 answers
  • What two terms are used to describe the temperature at which solids and liquids of the same substance exist at the same time?
    5·1 answer
  • Briefly discuss the following statement:
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!