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
NeX [460]
4 years ago
5

How many Al atoms are present in 2.5 moles of Al2O3

Chemistry
1 answer:
inysia [295]4 years ago
8 0

Answer:

1.5*10^24

Explanation:

1 mol of any substance contains 6.02*10^23 particles of this substance.

2.5*6.02*10^23  =1.5*10^24

You might be interested in
Which of the following is always a reactant in a combustion reaction? (5 points)
aleksandr82 [10.1K]

Answer:

A

Explanation:

Combustion reaction always has something hydrocarbon plus oxygen gas which equals to carbon dioxide and water. Always being a reactant in a combustion reaction is oxygen, since reactants are what we start off the reaction with.

4 0
3 years ago
What is one long-lasting climate change?
dimulka [17.4K]

Answer:

Scientists have predicted that long-term effects of climate change will include a decrease in sea ice and an increase in permafrost thawing, an increase in heat waves and heavy precipitation, and decreased water resources in semi-arid regions

Explanation:

3 0
3 years ago
Balance the chemical equation.Au plus HC l plus HNO 3 right arrow AuC l Subscript 3 Baseline plus NO plus Upper H 2 Upper OAu+HC
tino4ka555 [31]

Answer:

Au+ 3HCl + HNO_3 \to AuCl_3+NO+2H_2O

Explanation:

Chemical Equations are representations of chemical reactions in terms of the symbols and formulae of the elements and compounds involved. A chemical equation usually have the reactant at the left hand side while the product is on the right hand side.

A chemical Equation is of little or no value if is not in balanced equation. When an equation is balanced , the total number of atoms of any element on the left-hand side of it must be equal to the total number of atoms of that element on the right hand side.

in the given question; we are given a word problem of chemical symbol to  compute and also to balance the chemical equation.

From below; the chemical equation can be written as:

Au+ HCl + HNO_3 \to AuCl_3+NO+2H_2O

From the above  equation we will notice  that  it is not truly balanced ; so th balanced equation can be written as:

Au+ 3HCl + HNO_3 \to AuCl_3+NO+2H_2O

5 0
3 years ago
Is the equation balanced or unbalanced? Explain. AI + O2 --> AI2O3
anastassius [24]

Answer:

unbalanced..........

6 0
3 years ago
A vapor is which state of matter?<br><br> a. solid<br> b. liquid <br> c. gas<br> d. all of the above
Yanka [14]
A vapor is which state of matter?

C. Gas.
8 0
3 years ago
Other questions:
  • When a potassium atom forms an ion, it loses one electron. What is the electrical charge of the potassium ion?
    8·2 answers
  • A 250-mL glass bottle was filled with 242mL of water at 20°C and tightly capped. it was then left outdoor overnight, where the a
    7·2 answers
  • The darkest part of the moon’s shadow is called the penumbra?
    12·2 answers
  • 3. Which element is most important for growing crops?
    13·1 answer
  • Why is warm honey easier to pour than cold honey?
    14·2 answers
  • Crude oil is trapped between a porous rock layer and an impermeable layer.<br> True or False
    6·1 answer
  • Explain why the catalyst is used as a very fine powder and larger pieces of iron are not used.
    7·1 answer
  • (50 POINTS)THIS IS A TIMED TEST PLEASE ANSWER
    14·1 answer
  • I'll give brainliest
    9·1 answer
  • The image shows the gravitational effects of the moon (not shown) on the Earth (depicted here) and the resulting tides that form
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!