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
Bumek [7]
3 years ago
6

Select the correct answer.

Chemistry
2 answers:
Annette [7]3 years ago
5 0

Answer:

C

Explanation:

Because it is the question that represents than carbon in the presence of oxygen give carbon dioxide.

kherson [118]3 years ago
4 0

Basically, carbon (C2) burns in the presence of adequate Oxygen (O2) to form carbon dioxide. Carbon is Quadro valent and is able to accept four more electrons. Oxygen has two electrons and hence, readily reacts with carbon to help break and make bonds. The chemical equation of carbon dioxide (CO2) is

carbon + oxygen → carbon dioxide or C2 + O2 = CO2

You might be interested in
Identify each statement below as an example of science or pseudoscience.
kolezko [41]

Answer: pseudoscience

Explanation:

Edge 2020

3 0
3 years ago
Which of the following would dissolve in water?<br> CCl4<br> LiCl<br> CH4<br> PCl6
babymother [125]
Like dissolves like
so water is polar

CCl4 is nonpolar
LiCl is polar
CH4 is nonpolar
PCl6 is nonpolar

so LiCl would dissolve
7 0
3 years ago
Read 2 more answers
How many grams of calcium chloride would you need to make 1 L of solution containing 5 ppm calcium (Ca)?
Tresset [83]

Explanation:

The given data is as follows.

           Volume = 1 L,    Concentration of Ca = 5 ppm or 5 mg/L

As 1 mg = 0.001 g so, 5 mg /L will be equal to 0.005 g/l. Molar mass of calcium is 40.078 g/mol.

Hence, calculate molarity of calcium as follows.

           Molarity of Ca = \frac{\text{given concentration}}{\text{molar mass}}

                                  = \frac{0.005 g/l}{40.078 g/mol}

         Molarity of Ca = 1.25 \times 10^{-4} M

Hence, molarity of CaCl_{2} is 1.25 \times 10^{-4} M. Since, volume is same so, moles of calcium chloride will be 1.25 \times 10^{-4} mol.

Thus, we can conclude that mass of CaCl_{2} will be as follows.

             1.25 \times 10^{-4} \times 110.984       (molar mass of CaCl_{2} = 110.984 g/mol)

               = 0.0138 g

Thus, we can conclude that mass of CaCl_{2} is 0.0138 g.

4 0
3 years ago
What is the molar mass of 1-butene if 5.38 × 1016 molecules of 1-butene weigh 5.00 μg?
xenn [34]
<h3>Answer:</h3>

             Molar Mass =  56 g.mol⁻¹

<h3>Explanation:</h3>

Data Given:

                   Mass  =  5.00 μg  =  5.0 × 10⁻⁶ g

                   Number of Molecules  =  5.38 × 10¹⁶ Molecules

Step 1: Calculate Moles of 1-Butene:

                      As we know one mole of any substance contains 6.022 × 10²³ particles (atoms, ions, molecules or formula units). This number is also called as Avogadro's Number.

The relation between Moles, Number of Particles and Avogadro's Number is given as,

                          Number of Moles  =  Number of Particles ÷ 6.022 × 10²³

Putting values,

                          Number of Moles  =  5.38 × 10¹⁶ Molecules ÷ 6.022 × 10²³

                          Number of Moles  =  8.93 × 10⁻⁸ Moles

Step 2: Calculate Molar Mass of 1-Butene:

As,

                          Mole  =  Mass ÷ M.Mass

Solving for M.Mass,

                          M.Mass  =  Mass ÷ Mole

Putting values,

                          M.Mass  =  5.0 × 10⁻⁶ g ÷ 8.93 × 10⁻⁸ mol

                          M.Mass =  55.99 g.mol⁻¹ ≈ 56 g.mol⁻¹

4 0
3 years ago
Help please giving brainliest!
cupoosta [38]
Answer:

The answer is Graph A, because there is a direct relationship between pressure and volume.

The volume of a given gas sample is directly proportional to its absolute temperature at constant pressure.
3 0
2 years ago
Other questions:
  • Conlan wants to answer the question " does phosphorus affect tomato fruit production?" Which statement represents a hypothesis t
    13·1 answer
  • If the molecule C6H12 does not contain a double bond, and there are no branches in it, what will its structure look like?
    7·2 answers
  • A ______ is substance that enables a chemical reaction to proceed at a usually faster rate or under different conditions than ot
    11·2 answers
  • Atomic theory is
    12·1 answer
  • What does the subscript 2 show in this chemical equation? h2o → 2h o
    8·2 answers
  • Laura has 3 beakers. Each contain 200cm3 of colourless liquid. Describe how Laura could determine which beakers contain pure wat
    14·1 answer
  • 8. Insecticides are most likely to be damaging when used incorrectly.
    7·1 answer
  • Zinc + hydrogen arsenate—&gt; <br><br> Makes what?
    10·1 answer
  • A chemist divides a large sample of a mixture into three smaller portions. each of these portions contains different ratios of t
    6·1 answer
  • Which law states that the volume of a gas is proportional to the moles of the gas when pressure and temperature are kept constan
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!