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
MA_775_DIABLO [31]
3 years ago
9

Where would you have the least mass?​

Chemistry
1 answer:
beks73 [17]3 years ago
7 0

Answer:

the moon but mass stays the same  

Explanation:

You might be interested in
How should this combustion reaction be balanced?<br> C5H8+O2 + CO2 + H20
Genrish500 [490]

Answer:

They would equally balance because of the chemicles.

Explanation:

8 0
3 years ago
Read 2 more answers
A mixture of 0.682 mol of H2 and 0.440 mol of Br2 is combined in a reaction vessel with a volume of 2.00 L. At equilibrium at 70
ahrayia [7]

Answer: 0.294 mol of Br_2 present in the reaction vessel.

Explanation:

Initial moles of  H_2 = 0.682 mole

Initial moles of  Br_2 = 0.440 mole

Volume of container = 2.00 L

Initial concentration of H_2=\frac{moles}{volume}=\frac{0.682moles}{2.00L}=0.341M

Initial concentration of Br_2=\frac{moles}{volume}=\frac{0.440moles}{2.00L}=0.220M

equilibrium concentration of H_2=\frac{moles}{volume}=\frac{0.536mole}{2.00L}=0.268M

The given balanced equilibrium reaction is,

                            H_2(g)+Br_2(g)\rightleftharpoons 2HBr(g)

Initial conc.              0.341 M     0.220 M         0  M

At eqm. conc.    (0.341-x) M      (0.220-x) M     (2x) M

The expression for equilibrium constant for this reaction will be,

K_c=\frac{[HBr]^2}{[Br_2]\times [H_2]}

we are given : (0.341-x) = 0.268 M

x= 0.073 M

Thus equilibrium concentration of Br_2 = (0.220-x) M = (0.220-0.073) M = 0.147 M

[Br_2]=\frac{moles}{volume}\\0.147=\frac{xmole}{2.00L}\\\\x=0.294 mole

Thus there are 0.294  mol of Br_2 present in the reaction vessel.

7 0
3 years ago
An open flask sitting in a lab refrigerator looks empty, but it is actually filled with a mixture of gases called air. If the fl
ira [324]

Answer:

9.39 × 10²² molecules

Explanation:

We can find the moles of gases (n) using the ideal gas equation.

P . V = n . R . T

where,

P is the pressure (standard pressure = 1 atm)

V is the volume

R is the ideal gas constant

T is the absolute temperature (standard temperature = 273.15 K)

n=\frac{P.V}{R.T} =\frac{1atm.3.50L}{(0.08206atm.L/mol.K).273.15K} =0.156mol

There are 6.02 × 10²³ molecules in 1 mol (Avogadro's number). Then,

0.156mol.\frac{6.02\times10^{23}molecules}{mol} =9.39\times10^{22}molecules

4 0
3 years ago
Is zinc carbide a metallic bond?
Feliz [49]
Metallic bonds are found in metals like zinc.
3 0
2 years ago
Question 1 (1 point)
ladessa [460]

Answer:D - adding a catalyst

Explanation:

4 0
3 years ago
Other questions:
  • Which type of ions are formed when an acid is dissolved in water?
    8·2 answers
  • Q # 6 which of the following equations has correct formulas and also is a balanced equation?
    15·1 answer
  • Question
    15·1 answer
  • At 1.4 atm of pressure a gas has a volume of 111 ML at what pressure will the gas have a volume of 85 ML.
    8·1 answer
  • How many moles are in 7.00 x 10^24 atoms of N. Watch your significant figures
    7·1 answer
  • A sample of an unknown compound is vaporized at . The gas produced has a volume of at a pressure of , and it weighs . Assuming t
    10·1 answer
  • Write the general formula of an alkane and use this to predict the 97th member
    13·1 answer
  • A certain substance has a heat of vaporization of 64.08 kJ/mol. At what Kelvin temperature will the vapor pressure be 6.50 times
    11·1 answer
  • What are some characteristic properties of elements to the left of the elements along the ""staircase""? To the right?
    8·1 answer
  • 0.0000062 kg in scientific notation
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!