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
il63 [147K]
3 years ago
14

The atomic mass of an element is equal to the number of:

Chemistry
2 answers:
aleksklad [387]3 years ago
4 0
Atomic mass is protons and neutrons, because they both have a mass of 1 amu. Electrons have so little mass that they can be ignored. The answer is therefore B, protons plus neutrons
mylen [45]3 years ago
4 0

B is the correct answer

You might be interested in
Pick 3 objects around your room and write 2 observations and 2 interpretations about object . BTW I just moved I only have a bed
Katen [24]
Walls, floors, bed, door, doorknob. You have options
6 0
3 years ago
Can beans grow inside water
fredd [130]
No, They need something to hold on to, such as dirt
8 0
3 years ago
Read 2 more answers
What is the chemical formula for this?
guajiro [1.7K]

Answer:

-OOH

Explanation:

This forms an acid if it comes in contact with a metal

5 0
3 years ago
Read 2 more answers
6. What type of bond is called covalent bond?​
OleMash [197]
It’s a covalent is bond where atoms share an electron on the outer most electron shell orbit.
4 0
2 years ago
Read 2 more answers
How many moles of O2 are required to react with 6.6 moles of H2?
Bingel [31]

<u>Answer: </u>

<u>For 1:</u> 3.3 moles of oxygen gas is required.

<u>For 2:</u> 14 moles of hydrogen gas is required.

<u>For 3:</u> 1.5 moles of oxygen gas is required.

<u>Explanation:</u>

The chemical reaction of oxygen and hydrogen to form water follows:

O_2+2H_2\rightarrow 2H_2O

  • <u>For 1:</u> When 6.6 moles of H_2 is reacted.

By Stoichiometry of the above reaction:

2 moles of hydrogen gas reacts with 1 mole of oxygen gas.

So, 6.6 moles of hydrogen gas will react with = \frac{1}{2}\times 6.6=3.3mol of oxygen gas.

Hence, 3.3 moles of oxygen gas is required.

  • <u>For 2:</u> When 7.0 moles of O_2 is reacted.

By Stoichiometry of the above reaction:

1 mole of oxygen gas reacts with 2 moles of hydrogen gas.

So, 7 moles of oxygen gas will react with = \frac{2}{1}\times 7=14mol of hydrogen gas.

Hence, 14 moles of hydrogen gas is required.

  • <u>For 3:</u> When 3.0 moles of H_2O is formed.

By Stoichiometry of the above reaction:

2 moles of water is formed from 1 mole of oxygen gas.

So, 3.0 moles of water will be formed from = \frac{1}{2}\times 3.0=1.5mol of oxygen gas.

Hence, 1.5 moles of oxygen gas is required.

7 0
3 years ago
Other questions:
  • Solids have:<br> fixed shape<br> O A and B<br> fixed size<br> neither A nor B
    9·1 answer
  • When the molecules of gases are heated, the average kinetic energy of the molecules increases,
    12·1 answer
  • HELP!!!!!
    14·1 answer
  • A 32.5 g iron rod, initially at 22.4 ∘C, is submerged into an unknown mass of water at 63.0 ∘C, in an insulated container. The f
    6·1 answer
  • What practical use does adding salt to water have
    11·1 answer
  • What is the difference between a strong electrolyte and a weak electrolyte
    12·1 answer
  • How would Lithium gain full valence levels
    11·1 answer
  • If the gas in the above system has a volume of 256 mL at a pressure
    9·1 answer
  • Strontium and chlorine combine in only one ratio: one strontium atom for every two chlorine atoms. Based on this
    5·1 answer
  • Which of the following CAN NOT be considered a single phase?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!