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
MaRussiya [10]
3 years ago
12

For each pair of gases, select one that most likely has the highest rate of effusion. Use the periodic table if necessary

Chemistry
2 answers:
andreev551 [17]3 years ago
7 0

Hydrogen, Methane, Ammonia, and Fluorine

Explanation:

If the question was from Edge2020, then this should be the correct answer :) Hope this helps!

brilliants [131]3 years ago
4 0
You will do the highest one i think
You might be interested in
When 60 mL of 0.22 M NH4Cl is added to 60 mL of 0.22 M NH3, relative to the pH of the 0.10 M NH3 solution the pH of the resultin
densk [106]

Answer:

Will be more acidic

Explanation:

The equilibrium of NH3 in water is:

NH3(aq) + H2O(l) ⇄ NH4⁺(aq) + OH⁻(aq).

Where equilibrium constant, Kb, is:

Kb = 1.85x10⁻⁵ = [NH4⁺] [OH⁻] / [NH3]

From 0.10M NH3, the reaction will produce X of NH4⁺ and X of OH⁻ and Kb will be:

1.85x10⁻⁵ = [X] [X] / [0.10M]

1.8x10⁻⁶ = X²

X = 1.34x10⁻³ = [OH⁻]

As pOH = -log[OH⁻] = 2.87

And as pH = 14 - pOH

pH of the 0.10M NH3 is 11.13

Now, to find the pH of the NH4Cl and NH3 we need to use H-H equation for bases:

pOH = pKb + log [NH4⁺] / [NH3]

<em>Where pKb is -log Kb = 4.74 and [] are moles of both compounds.</em>

<em />

Moles of [NH4⁺] = [NH3] = 60mL, 0.060L*0.22M = 0.0132moles:

pOH = 4.74 + log [0.0132] / [0.0132]

pOH = 4.74

pH = 14 - 4.74 = 9.26

That means the pH of the resulting solution will be more acidic

7 0
3 years ago
Give the name for the molecular compound with the the formula P2I4.​
jenyasd209 [6]

Answer:

P2I4 is otherwise known as "<em>Diphosphorus Tetraiodide</em>"

3 0
2 years ago
Read 2 more answers
Match each root with its meaning. (5 points) 1. Grad/gress 2. Ject 3. Meter 4. Junct 5. Loc a. Place b. To throw c. Measure d. T
Dima020 [189]
1. To step
2. To throw
3. Measure
4. To join
5. Place
4 0
3 years ago
_____NaNo3+______PbO-_____Pb(No3)2+__Na2O
klio [65]

Answer:

2NaNO3+1PbO=1Pb(NO3)2+1Na2O

Explanation:

My chem teacher always had us make a T-chart for products and reactants on both sides to help you figure out balancing equations

4 0
3 years ago
PLEASE HELP ASAP!!! I REALLY NEED HELP ON THIS TEST!!!
Oksana_A [137]

Answer:

1. Hyphothesis 2.Theory 3. law

Explanation:

not sure, but law is observation, theory is based on knowledge things before.

5 0
2 years ago
Other questions:
  • For the reaction A + B − ⇀ ↽ − C + D A+B↽−−⇀C+D , assume that the standard change in free energy has a positive value. Changing
    5·2 answers
  • Calculate the percent by mass of C in pentaerythritol (C(CH2OH)4)
    6·2 answers
  • HURRY ⚠️<br> How many Chlorine atoms in 2HCI?<br> Hiw many Hydrogen atoms are in 2HCl?
    12·2 answers
  • Balancing Equations: <br> _(NH4)3PO4 + _Pb(NO3)4 = _Pb3(PO4)4 + _NH4NO3<br><br> With work please.
    14·1 answer
  • What is the specific heat of a substance if 1560 cal are required to raise temperature of a 312 g substance by 15 degrees celsiu
    12·1 answer
  • The equilibrium constant for the chemical equation is Kp = 5.23 at 191 °C. Calculate the value of the Kc for the reaction at 191
    6·1 answer
  • The mass of an atom is measured in a unit named the<br> ____. fill in the blank please helpppp
    6·1 answer
  • Sodium hydroxide, NaOHNaOH; sodium phosphate, Na3PO4Na3PO4; and sodium nitrate, NaNO3NaNO3, are all common chemicals used in cle
    10·1 answer
  • If the pressure on a 1.04 L sample of gas is doubled at constant temperature, please compute the new volume of gas: __
    12·1 answer
  • Can somebody plz answer both these questions in this question thanks! only 2 sentences is fine :)
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!