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
zaharov [31]
2 years ago
13

What is one disadvantage of using fossil fuels?

Chemistry
2 answers:
tatiyna2 years ago
7 0
Green house affects environment affected by killings
Elan Coil [88]2 years ago
3 0

Answer:

Fossil fuels contribute to greenhouse gases, which is one of their major disadvantages. The most harmful for the environment is coal because it has many more harmful combustion products than other fossil fuels.

You might be interested in
Water can take on three forms which include ice, water, and water vapor. Which states of matter match these three forms of water
Tanya [424]

Answer:

Water as itself can match the state of liquid, ice can match the state of a solid, and water vapor can match the state of gas.

Explanation:

8 0
2 years ago
Read 2 more answers
Under what circumstances will a scientific theory be changed or discarded
VMariaS [17]

If new evidence or observations falsify a scientific theory, the theory will have to be changed to adapt to the new data or just discarded altogether.

7 0
3 years ago
Read 2 more answers
What change in volume results if 50 mL of gas is cooled from 30 C to 4 C
11111nata11111 [884]

The relation between the volume of the gas and the temperature is established by Charles's law. With a decrease in the temperature, the volume decreases by 45.7 mL. Thus, option c is correct.

<h3>What is Charle's law?</h3>

Charle's law states the direct relation present between the temperature and the volume of the gas. The law is given as:

V₁ ÷ T₁ = V₂ ÷ T₂

Given,

V₁ = 50 mL

T₁ = 303.15 K

T₂ = 277.15 K

Substituting the value the final volume is calculated as:

50 ÷ 303.15 = V₂ ÷ 277.15

V₂ = (50 × 277.15) ÷ 303.15

= 45.71 mL

Therefore, option c. 45.7 mL is the final volume.

Learn more about Charles law here:

brainly.com/question/16927784

#SPJ1

5 0
2 years ago
You might need:
nikitadnepr [17]

Answer:

Mass = 14.3 g

Explanation:

Given data:

Mass of Mg(OH)₂  = 16.0 g

Mass of HCl = 11.0 g

Mass of MgCl₂ = ?

Solution:

Chemical equation:

Mg(OH)₂ + 2HCl    →   MgCl₂ + 2H₂O

Number of moles of Mg(OH)₂ :

Number of moles = mass/ molar mass

Number of moles = 16.0 g/ 58.3 g/mol

Number of moles = 0.274 mol

Number of moles of HCl :

Number of moles = mass/ molar mass

Number of moles = 11.0 g/ 36.5 g/mol

Number of moles = 0.301 mol

Now we will compare the moles of Mg(OH)₂  and HCl with MgCl₂.

                           Mg(OH)₂          :           MgCl₂

                                 1                 :               1

                                 0.274        :          0.274

                               HCl             :              MgCl₂

                                  2              :               1

                                0.301         :           1/2×0.301 = 0.150

The  number of moles of MgCl₂ produced by HCl are less so it will limiting reactant.

Mass of MgCl₂:

Mass = number of moles × molar mass

Mass = 0.150 ×  95 g/mol

Mass = 14.3 g

8 0
3 years ago
Two electrons are found in the same atom. One has the quantum number set (2, 1, -1, +½), and the other has the quantum number se
SCORPION-xisa [38]

Answer is: same orbital, but have different spin directions.

The principal quantum number (n) is one of four quantum numbers which are assigned to each electron in an atom to describe that electron's state.  

For principal quantum number n=2:  

1) azimuthal quantum number (l) can be l = 0...n-1:  

l = 0, 1.  

The azimuthal quantum number determines its orbital angular momentum and describes the shape of the orbital.  

2) magnetic quantum number (ml) can be ml = -l...+l.  

ml = -1, 0,+1.  

Magnetic quantum number specify orientation of electrons in magnetic field and number of electron states (orbitals) in subshells.  

3) the spin quantum number (ms), is the spin of the electron.  

ms = +1/2, -1/2.  

8 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following is not true of a pseudoscience? It is a practice or belief that claims to be science, It does not follow
    9·1 answer
  • What are the products of a reaction between ammonium iodide and magnesium sulfate?
    8·1 answer
  • One way in which the useful metal copper is produced is by dissolving the mineral azurite, which contains copper(II) carbonate,
    10·2 answers
  • When an atom, ion, or molecule of a reactant switches places with an unpaired reactant, the type of reaction is called _________
    7·1 answer
  • The graph below shows how the temperature and volume of a gas vary when
    6·1 answer
  • In a chemical equation, the symbol that takes the place of the words reacts with is an) Example HCI + KOH-KCI + H2O
    10·1 answer
  • Point give away!!! 15 points not alot but ots ok ​
    14·2 answers
  • For each pair circle the neutral element with the largest atomic radius K or Cs ,Ti or As ,Br or F
    5·1 answer
  • If a 12 fl. Oz. Beer has a 12% abv, how many servings of alcohol is that?.
    15·1 answer
  • A cell phone manufacturer recalled some 50 million lithium batteries installed in cell phones because the batteries were at risk
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!