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
ololo11 [35]
3 years ago
6

How can you predict an elements group and period

Chemistry
1 answer:
mina [271]3 years ago
6 0
Who cares about this question
You might be interested in
HELP FAST 20 POINTS
schepotkina [342]
D) Transportation is the correct answer
8 0
4 years ago
Read 2 more answers
How many minutes are in 180,0 days?
iris [78.8K]

Answer:

259,200 minutes

Explanation:

4 0
3 years ago
What's the empirical and molecular weight of C14H22N4O8? What's the molecular formula of C14H22N4O8?
Inessa05 [86]

374u

187u

C₁₄H₂₂N₄O₈

Explanation:

To find the molecular weight of the compound C₁₄H₂₂N₄O₈ we simply sum that atomic masses of the given elements in the compound.

 The empirical weight is determined by using the simplest ratio of the elements involved in the compound;

Molecular weight of C₁₄H₂₂N₄O₈;

atomic mass of C = 12g/mol

                           H = 1g/mol

                            N = 14g/mol

                            O = 16g/mol

 Molecular weight = 14(12) + 22(1) + 4(14) + 8(16)

                                = 168 + 22 + 56 + 128

                                 = 374u

Empirical weight:

  Empirical formula:

                        C₁₄    H₂₂      N₄     O₈

                         14  :    22 :    4  :     8

   divide by 2:

                          7   :    11    :    2  :    4

     empirical formula  C₇H₁₁N₂O₄

     empirical weight = \frac{molecular weight}{2} = \frac{374}{2} = 187u

The molecular formula is the actual combination of atoms in a compound. so the molecular formula of the compound is C₁₄H₂₂N₄O₈

learn more:

Molecular mass brainly.com/question/5546238

#learnwithBrainly

8 0
3 years ago
What is respiration explain in own words please
pashok25 [27]

Answer: the process by which cells use oxygen to break down sugar and obtain energy.

4 0
2 years ago
Read 2 more answers
The density of an unknown gas is 4. 20 grams per liter at 3. 00 atmospheres pressure and 127 °c. what is the molecular weight of
Kryger [21]

The molecular weight of this gas will be 45 g/mol .

The state equilibrium equation for a fictitious perfect gas is known as the ideal gas law, sometimes known as the generic gas equation. Although it has significant drawbacks, it represents a decent approximation of the activity of many gases under various conditions.

Ideal gas law can be expressed as:

PV =nRT

Calculation of molecular weight by using ideal as law.

Given data:

P = 3 atm

T = 127 °c

Density =  4. 20 grams per liter

PV =nRT

where p is pressure , T is temperature and R is gas constant.

PV = gram / molecular weight RT

Molecular weight = (g/v)( 1/P) RT

Putting the given data in above equation.

Molecular weight =4.20 × 1/ 3× 400 × 0.0831

Molecular weight = 45 g/mol.

To know more about Molecular weight

brainly.com/question/27988184

#SPJ4

4 0
2 years ago
Other questions:
  • If something has an actual yield of 2.5 grams and a theoretical yield of 7.5 grams, what is the percent yield?
    15·1 answer
  • What is a change that will not affect the pressure in a container ? A.increasing the volume of the fluid B . Changing the materi
    8·1 answer
  • C6H1206 +602 → 6002 + 6H20 AH = -2,799 kJ
    6·1 answer
  • What type of compounds dissolve easily in water?
    6·2 answers
  • Based on table N of the reference tables what is the number of hours required for 42k (potassium -42) to undergo three half-life
    15·1 answer
  • Explain in 2-4 sentences what the difference between climate and weather is
    12·2 answers
  • Minerals are only used for gemstones and jewelry. <br> True <br> False
    9·2 answers
  • A chemist reacts 30.0 mL of 5.6 M HCl with an excess of Mg(OH)2 How many grams of magnesium will be produced
    8·1 answer
  • Check out this app! It's millions of students helping each other get through their schoolwork. https://brainly.app.link/qpzV02Ma
    7·1 answer
  • Why do sea turtles rely on instincts more than mammals do?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!