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
kotykmax [81]
3 years ago
6

Can someone please help me

Chemistry
1 answer:
Pachacha [2.7K]3 years ago
6 0
Help you with what ma’am
You might be interested in
A temperature of 273 K is the temperature at which water A. evaporates. B. is at its densest. C. freezes. D. boils.
Irina-Kira [14]
C. freezes
Pure water freezes at 273 Kelvin<span> and boils at </span>373 Kelvin<span>.</span>
8 0
3 years ago
Read 2 more answers
Draw a lewis structure for ketene, c2h2o, which has a carbon–carbon double bond
MrMuchimi

Visual representation of covalent bonding indicating the valence shell electrons in the molecule, lines represents the shared pair of electron and pair of electrons that are not involved in bonding are represented as dots(lone pairs) are known as Lewis structures.

Compound formation takes place in order to complete the octet of each element that is according to octet rule, each atom forms bond with other atom in order to complete their octet that is to get eight electrons in its valence shell and attain stability.

An organic compound of the form R^{'}R^{''}C=C=O is known as ketene.

The given ketene is C_2H_2O.

The number of valence electron of:

C = 4

H = 1

O = 6

The number of valence electrons in C_2H_2O = 2\times 4+2\times 1+1\times 6 =16

2 electrons are involved in each single bond between carbon and hydrogen and 4 electrons are involved in each double bond formed between carbon-carbon and carbon-oxygen. Hence, the total number of electrons involved in bond formation are 12 and rest 2 pair of electrons are present on oxygen as lone pair of electrons.

Therefore, the attached image is the Lewis structure of C_2H_2O .

8 0
3 years ago
when an animal behaviorist attempts to explain or interpret her observations, she is_______. a. classifying her data b.making an
balandron [24]

Answer:

\\  \\  \\  \\  \\  \\  \\  \\  \\  \\  \\  \\

4 0
2 years ago
Calculate the solubility (in grams per 1.00×102mL of solution) of magnesium hydroxide in a solution buffered at pH = 12
GaryK [48]
The Ksp of Mg(OH)2 in water is 1.8 x 10-<span>11. This means that in pure water, Mg(OH)2 has a solubility of:
</span>∛[(1.8 x 10-11) / 4] = 1.65 x 10-4 mol/L
<span>which is equal to
</span>1.65 x 10-4<span> mol x (58.32) / 10 x 100 mL =  9.62 x 10-4g / 1x102 mL

If the pH is 12, the hydroxide concentration in the solvent is
10^-(14-12) = 0.01 mol/L
The solubility is solve using the formula
</span>1.8 x 10-11 = x (2(0.01 + x))^2
x = 4.5x10-8 mol/L
which is equal to
4.5x10-8 mol x (58.32) / 10 x 100 mL =  2.62 x 10-7g / 1x102 mL
8 0
4 years ago
Please help I am stuck
Ksenya-84 [330]
The theory of plate tectonics tells exactly where the continents were before Pangaea divided.

I'm not a 100% sure but I feel strong about is
8 0
3 years ago
Other questions:
  • Which of these are measures of quantity?
    6·1 answer
  • Please answer this attachment below
    14·1 answer
  • Help me please my family brainly​
    14·1 answer
  • 4Al+302 &gt; 2Al203 is this equation balanced? why or why not
    6·1 answer
  • Explain the various factors that impact the solubility of substances in water.
    14·2 answers
  • During chemistry lab, Maria places sucrose in a glass beaker, adds water, and stirs. As the table sugar disappears, she loudly p
    14·1 answer
  • Does Lewis structure show all electrons in an atom?
    6·2 answers
  • What is the pH of 0.6 M NaOH?
    10·2 answers
  • In the food web above which organism has the least amount of energy available?
    6·1 answer
  • True or false amino acids and nucleic acids are both monomers containing nitrogen​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!