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
MAVERICK [17]
2 years ago
10

Answer the amount of miles of O2

Chemistry
1 answer:
lord [1]2 years ago
5 0

Answer:

3

Explanation:

the answer is 3 because it is 3 for the o2 so 3 you <em>have </em><em>to </em><em>pay </em><em>more </em><em>attention </em><em>for </em><em>the </em><em>small </em><em>ditails </em>

You might be interested in
An 100g box have a temperature of 22 C. What temperature must a 200g box be kept at in order for both to have the same amount of
Elis [28]

Answer:

the answer is 1 sir BC i t is BC it is BC its 2

4 0
3 years ago
How many grams are in 2.3 moles of calcium phosphate, Ca3(PO3)2
irina1246 [14]
Moles = mass/molar mass
moles = 2.3
molar mass = 278
=> mass = moles*molar mass = 639.4g
6 0
3 years ago
Draw and label the parts of a helium atom. Include the mass and charge of each subatomic particle.
mihalych1998 [28]

Explanation:

Helium is the second element on the periodic table.

  Information about helium:

  • it belongs to group O on the periodic table
  • it is has an atomic number of 2
  • Helium exists naturally as gas and it is nonreactive.

  To write an atom we use this format:

                                     ₙᵇGˣ

   G is the symbol of the atom

   n is the atomic number  

   b is the mass number

    x is the charge on the atom

Using the periodic table as guide

    Symbol of helium is He

     Atomic number of helium is 2

     mass number of helium is 4

     charge on helium atom is 0

                              ⁴₂He

Every atom contains protons, neutrons and electrons;

   Electrons are negatively charged. For a neutral atom, the number of electrons is the same as that of protons.

   Protons are positively charge particles in an atom. The atomic number is the number of protons in an atom.

   neutrons do not have charges.

 

   Helium has:

        Number of protons = 2

        Number of electrons = 2

        Number of neutrons = 2

Mass of each subatomic particle:

      1 electron = 9.11 x 10⁻³¹kg

      2 electrons = 1.82 x 10⁻³⁰kg  

     Protons and neutrons have the same mass:

           1 proton = 1.67 x 10⁻²⁷kg

           2 protons = 3.34 x 10⁻²⁷kg

           2 neutrons = 3.34 x 10⁻²⁷kg

Learn more:

helium brainly.com/question/2439349

#learnwithBrainly

4 0
3 years ago
Which of the following is not a property of water?
Oxana [17]

Answer:

A) hydrogen bonds cause a high surface tension = FALSE

Explanation:

The rest are correct

5 0
3 years ago
DATE PAGE No. 25. calculate the temperature at which air possesses a density equal to that of hydrogen at Dºc. Density of a'r at
Gemiola [76]

Answer: what is your issue

Explanation:

7 0
2 years ago
Other questions:
  • what force is necessary for a zookeeper to lift a sedated lion with a total mass of 175 kg with an upward acceleration of .65 m/
    9·1 answer
  • what if you drop a small magnet repeatedly it become demagnetized. explain. what is happening sub-atomically?
    11·1 answer
  • The molar mass of the compound was found to be 30.069 g/mol. what is the molecular formula? express your answer as a chemical fo
    10·1 answer
  • HELP ASAP AND ILL GIVE U BRAINLIEST
    13·1 answer
  • Classify the reaction that makes a firefly glow in terms of energy input and output
    15·1 answer
  • The mass of a watch glass was measured four times. The masses were
    9·2 answers
  • Which one is not a long-term environmental change?
    12·2 answers
  • For the most effective hot pack, should the Temperature change be positive or negative ?
    11·1 answer
  • PLEASE HELP, this assignment is worth 45 points and i dont have any free time to finish it
    11·2 answers
  • If 200mL of 0.60 M MgCl2 (aq) is added to 400mL of distilled water, what is the concentration of Mg2+(aq) in the resulting solut
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!