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
4vir4ik [10]
3 years ago
14

A gas effuses 4.0 times faster than oxygen (O2). What is the molecular mass of the gas?

Chemistry
1 answer:
Dovator [93]3 years ago
8 0
Hope this helps you!

You might be interested in
6.02 kJ>mol. When a small ice cube at -10°C is put into a cup of water at room temperature, which of the following plays a gr
9966 [12]

Answer:

Heat transfer during melting of ice plays greater role in cooling of liquid water.

Explanation:

Temperature of ice = -10 °c

Temperature of water = 0 °c

When ice cube is dipped in to the water.the heat transfer

Q = m c ΔT

⇒ Q = 1 × 2.01 × 10

⇒ Q = 20.1 KJ

Heat transfer during melting of ice Q_{melt} = latent heat of ice

Latent heat of ice = 334 KJ

⇒ Q_{melt} = 334 KJ

Heat transfer during melting of ice is greater value than heat transfer during warming of ice from -10°C to 0°C.

Thus heat transfer during melting of ice plays greater role in cooling of liquid water.

8 0
3 years ago
The last element in any period always has:
brilliants [131]

Answer: The correct option is The properties of a noble gas.

Explanation: There are 7 periods in the periodic table.

The last element of each period are Helium (He), Neon (Ne), Argon (Ar), Krypton (Kr), Xenon (Xe), Radon (Rn) and Ununoctium (Uuo).

  • The electronic configuration for Helium is 1s^2. For He, The outermost electrons are 2.
  • The electronic configuration for all the other elements is ns^2ns^6 ( where, n = 2, 3, 4, 5, 6 and 7 respectively). For all the other gases, the outermost electrons are 8.

All these elements have stable electronic configuration and are not reactive in nature. Hence, they are considered as noble gases.

Therefore, the last element of each period always have the properties of a noble gas.

4 0
3 years ago
Read 2 more answers
A compound has the empirical formula ch and a formula mass of 52.10 amu. part a what is the molecular formula of the compound?
Sever21 [200]
<span>C4H4 The compound in question has an equal ratio of hydrogen and carbon. The atomic weight of carbon is roughly 12 and the atomic weight of hydrogen is roughly 1. The mass of the compound in question is roughly 52. 52/13=4 C4H4</span>
3 0
2 years ago
Read 2 more answers
Place where food is stored and partially digested
Ostrovityanka [42]
Answer: Chyme

Explain: Chyme passes from the stomach to the small intestine. Further protein digestion takes place in the small intestine.
3 0
2 years ago
Name the two properties of elections that indicate a wave-like nature.
tangare [24]
<span>The wave nature of an electron is indicated by its motion and the diffraction and interference of electrons in a beam.</span>
4 0
3 years ago
Other questions:
  • What are the characteristics shapes of s p and d orbitals
    11·1 answer
  • What two properties most affect the strength of the gravitational forces
    13·2 answers
  • (c) ammonium carbonate + lead nitrate ? Step-by-step solution Step 1 of 3 v Step 2 of 3 v Step 3 of 3 ^ c) The ions formed in so
    7·1 answer
  • Use 'beta particle' in a sentence please.
    12·2 answers
  • Which substance is an Arrhenius base?<br> (1) KCl (3) KOH<br> (2) CH3Cl (4) CH3OH
    14·1 answer
  • 6. (10 Points) The volume of a helium balloon in Los Angeles is 14.0 L The
    10·1 answer
  • How did the work of Dmitri Mendeleev differ from that of John Newlands in the development of the periodic table?
    6·1 answer
  • Which is a nonpoint source of pollution?
    8·1 answer
  • Which statement would indicate the presence of an acid?
    8·2 answers
  • Convert from moles to particles 6.02x1023 particles 1 mole Question 2. 2.7 moles of lithium Question 3. 1.8 moles of sodium chlo
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!