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
Yuri [45]
3 years ago
14

Which of the following statements concerning the density of a gas is true?

Chemistry
1 answer:
Naya [18.7K]3 years ago
5 0

Answer:

can u give us the options

You might be interested in
Convert the following to grams<br> 0.500 moles of (NH4)2CO3
steposvetlana [31]
Molar mass (NH₄)₂CO₃ = <span>96.09 g/mol

1 mole ---------> 96.09 g
0.500 moles ----> ?

0.500 * 96.09 = 48.045 g of </span><span>(NH₄)₂CO₃

hope this helps!

</span>
5 0
3 years ago
Describe the chemical reaction based on the
BabaBlast [244]

Answer:

Ammonia gas reacts with oxygen gas.

Nitric oxide gas and liquid water are produced.

Platinum is used as a catalyst.

The equation is unbalanced because the number of hydrogen atoms is not the same on both sides of the equation.

Explanation:

3 0
2 years ago
For double-helix formation, DG can be measured to be 2 54 kJ mol 1 ( 2 13 kcal mol 1 ) at pH 7.0 in 1 M NaCl at 25 8C (298 K). T
levacccp [35]

Answer:

ΔS = -661.0J/mol is the entropy change for the system

ΔS = -842J/mol.K is the entropy change for the surroundings

Explanation:

From the relationship between ΔG, T, ΔH and ΔS,

Mathematically, ΔG = ΔH - TΔS

TΔS = ΔH - ΔS

ΔS = ΔH - ΔS / T

but ΔG = -54 kJ/mol, ΔH = -251 kJ/mol and T = 25 °C (298 K)

plugging into the equation,

ΔS = -251 kJ/mol - ( -54 kJ/mol) / 298

ΔS  = -0.6610KJ/mol or in J.mol

ΔS = -661.0J/mol is the entropy change for the system

  • For entropy change for the surroundings = ΔS = ΔH/T
  • ΔS  = -251 kJ/mol / 298K
  • ΔS = -0.84KJ/mol.K or -842J/mol.K is the entropy change for the surroundings
8 0
3 years ago
What property is used to organize elements on the periodic table?
erma4kov [3.2K]
Atomic Number is used to organize the periodic table.

Hope this helps
3 0
3 years ago
Why are models used to represent Atoms
Keith_Richards [23]

Answer:

C

Explanation:

5 0
2 years ago
Read 2 more answers
Other questions:
  • By the end of this lab, you will determine whether you should add cocoa mix (a solid) before or after heating water (liquid) to
    9·2 answers
  • Calculate the molar solubility of pbi2 in the presence of 0.10 m nai.
    11·1 answer
  • Is limestone a reactant or a product
    10·1 answer
  • Which part of the atom is directly involved in chemical changes? A. the electron B. the energy levels C. the nucleus D. the char
    14·1 answer
  • Match the scientist to his contribution to the atomic theory - Thomson - Rutherford - Bohr A. Electron energy levels B. Nucleus
    13·1 answer
  • According to the law of conservation of mass, if an element A has an atomic mass of 2 mass units and element B has an atomic mas
    10·1 answer
  • 18 An important environmental consideration is the appropriate disposal of cleaning solvents. An environmental waste treatment c
    9·1 answer
  • How could I study for my science test on science inquiry?
    10·1 answer
  • N₂ + 3H2 → 2NH3
    12·2 answers
  • calculate the mass of HNO3 obtained when 20.0g of KNO3 reacts completely with excess concentrated H2SO4
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!