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
Darina [25.2K]
2 years ago
5

VERY EASY HELP ASAP!! THANK YOU!!

Chemistry
1 answer:
vesna_86 [32]2 years ago
6 0

Answer:

9 g/cm³

Explanation:

You might be interested in
Each of the following reactions is allowed to reach equilibrium in a sealed container. For which of the reactions could you shif
natta225 [31]

Answer:

None of the reaction will be favored to the right by a decrease in pressure.

Explanation:

       CH₄(g) + 2O₂(g) ⇄ CO₂(g) + 2H₂O(l)  

       CaCO₃(s) ⇄  CaO(s) + CO₂(g)  

       Br₂(g) + 3Cl₂(g) ⇄  2BrCl₃(g)  

       2H₂S(g) + 3O₂(g) ⇄  2SO₂(g) + 2H₂O(g)

From Le Chatellier's principle, we must understand that pressure changes only affects reactions in gaseous phases. The second reaction will not be affected by pressure.

We are now left with three equations.

Also, increase in pressure favors sides with lower volume. We can know the volume from the coefficients in the equation. Now let us check the volumes:

          CH₄(g) + 2O₂(g) ⇄ CO₂(g) + 2H₂O(l)  

         3 moles of gases      3 moles of gases

        Br₂(g) + 3Cl₂(g) ⇄  2BrCl₃(g)  

         4 moles of gases     2 moles of gases

       2H₂S(g) + 3O₂(g) ⇄  2SO₂(g) + 2H₂O(g)

        5 moles of gases      4 moles of gases

None of the reaction will be favored to the right by a decrease in pressure.

The first reaction will not be affected by any change in pressure because the total number of moles on the two sides are equal.

The last two reactions will be favored to the right by increasing pressure and a decrease in pressure will favor the backward left reaction.

7 0
3 years ago
Read 2 more answers
The mass of a block is 12 g and the volume is 6 ml. Calculate the density of the block.
HACTEHA [7]

Answer:

According to mass and volume,  block density is 2 g/ml

Explanation:

Density is a measure, usually used in physics and chemistry, that relates the mass and volume of a solid or compound.

In general terms, the density is directly proportional to the mass, and inversely proportional to the volume, so increasing the mass will also increase the density.

The formula used to calculate the density is

ρ = \frac{m}{V}

Therefore, according to the mass and density of the block

ρ = \frac{12}{6} = 2g/ml

Being the density of the block equal to 2 g/ml.

<em>The other options are not possible, because the values given do not correspond to the result of the equation.</em>

5 0
2 years ago
Neve later believes that New Zealand's winter is caused by the sun circling to the other side
VARVARA [1.3K]

Explanation:

I need a help of math.

please can someone help me ?

3 0
2 years ago
List three conditions for separating crude oil constituents pls someone help me out ​
Alborosie

Answer:

All refineries have three basic steps: separation, conversion and treatment. During the separation process, the liquids and vapors separate into petroleum components called factions based on their weight and boiling point in distillation units.

Explanation:

4 0
2 years ago
How to do Lewis structure for Al?
Gnoma [55]

Notes:-

  • Al has Z=15

electron configuration:-

  • [Ne]3s²3p³

Valency is 3

So 3 dots are included

4 0
2 years ago
Other questions:
  • The energy from nuclear fission is potentially limitless but production is restricted by the limited availability of
    11·1 answer
  • Pleas Help!
    15·1 answer
  • Mixtures can be ____________ meaning that their particles are uniform in nature, or they can be_________________ meaning that th
    10·1 answer
  • Which of the following are examples of strong electrolytes?
    5·1 answer
  • using what you know about electron configurations explain the notion that elements in the same column in the periodic table have
    11·1 answer
  • For a certain reaction, Kc = 2.76×103 and kf= 6.54×10−4 M−2⋅s−1 . Calculate the value of the reverse rate constant, kr, given th
    9·1 answer
  • The molecular mass of air, at standard pressure and temperature, is approximately 28.97 g/mol. Calculate the mass of 3.33 moles
    14·2 answers
  • 200 feet in 30 seconds is what speed?
    15·2 answers
  • Mendel crossed tall pea plants with short pea plants. The offspring were all tall plants.
    12·1 answer
  • Phase change involves changing states of matter (solid-liquid-gas). How do these three states of matter differ from each other?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!