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
Jobisdone [24]
4 years ago
6

Which element is a noble gas: Ne, Br, or O

Chemistry
2 answers:
Juli2301 [7.4K]4 years ago
4 0

Answer:

_+_

Explanation:

ValentinkaMS [17]4 years ago
3 0
The answer is Ne Neon!!!!!!!!!!!!!!
You might be interested in
If the alum reaction was done starting with 12.000 g of al, how many moles of hydrogen gas would be produced according to the ba
mylen [45]

0.67 moles of hydrogen gas.

5 0
3 years ago
Barbiturates are synthetic drugs used as sedatives and hypnotics. Barbital ( = 184.2 g/mol) is one of the simplest of these drug
DanielleElmas [232]

Answer:

118.75°C is the boiling point of a solution.

Explanation:

Mass of the solute that is barbiturates = 42.5 g

Molar mass of a solute = 184.2 g/mol

Moles of solute = \frac{42.5 g}{184.2 g/mol}=0.2307 mol

Mass of the solvent that acetic acid = 825 g = 0.825 kg

molality=\frac{\text{Moles of solute}}{\text{Mass of solvent}}

Molality of the solution (m):

m=\frac{0.2307 mol}{0.825 kg}=0.2796 m

Elevation in boiling point is given as:

\Delta T_b=i\times K_b\times m

i = 1 (organic compound)

=1\times 3.07^oC/m\times 0.2796 m=0.8585^oC

\Delta T_b=T_b-T

T_b = Boiling temperature of solution.

T = boiling temperature of solvent that is acetic acid=117.9°C

0.8585^oC=T_b-117.9^oC

T_b=118.75 ^oC

118.75°C is the boiling point of a solution.

6 0
3 years ago
How to obtain sugar from a solution of sugar in water? Why will filtering not work?
yan [13]

Answer:

Sugar can be obtained by evaporation.

Filtering wont work because sugar is soluble in water thus will mix to form one layer.

7 0
3 years ago
For this heterogeneous system 2 A ( aq ) + 3 B ( g ) + C ( l ) − ⇀ ↽ − 2 D ( s ) + 3 E ( g ) 2A(aq)+3B(g)+C(l)↽−−⇀2D(s)+3E(g) th
Archy [21]

Answer:

K = 1.08 X 10¹²

Explanation:

The solved solution is in the attach document

4 0
3 years ago
Who uses petroleum and for what purpose?
FinnZ [79.3K]

Answer:

today, petroleum is mostly used as a source of energy, being rich in combustible carbon in the production of electricity or running some sorts of heat engines. ... Raw petroleum (also known as crude oil) is used in three major ways: Transportation, Electricity Generation, and Material Production.

Explanation:

hope it helps!!!!!!!!!!!!!!!!!!!!!!!!!!

7 0
4 years ago
Read 2 more answers
Other questions:
  • Which of these statements is not true about chemical reaction rates?
    11·2 answers
  • What are some examples of physical properties?
    12·1 answer
  • An atom of chromium has 24 protons, 28 neutrons, and 24 electrons. A chromium atom has_____Subatomic particles in the necleus
    9·1 answer
  • Which statement best describes why a machine is useful? A machine does a greater amount of work than the amount of work that is
    11·2 answers
  • Calculate the predicted density for calcium, ca, given the density of strontium, sr, (2.63g/cm3) and barium, ba, (3.65 g/cm3).
    8·1 answer
  • An object has a mass of 180 kg and a volume of 90 m3. What is its density?
    12·1 answer
  • Will a marble keep rolling forever on a flat hardwood floor?
    6·1 answer
  • Ralph and Sheila are at a construction site and they are stacking bricks. The diagram above shows the bricks before they touch.
    8·2 answers
  • 3. Which element has the ground state electronic configuration, 1s22s22p63s23p645' ?
    8·1 answer
  • How many liters of 4.0 M NaOH solution will react with 1.2 mol H2SO4? (Remember to balance the equation.)
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!