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
notsponge [240]
3 years ago
14

Is methylene chloride more or less dense than water?

Chemistry
1 answer:
horsena [70]3 years ago
3 0
Methylene chloride is less dense than water
You might be interested in
What is the difference between a stable and unstable isotope
USPshnik [31]

Stable isotopes are not radioactive nor dangerous.

Unstable isostopes are radioactive and have different mass of the element.

8 0
3 years ago
What do scientists use to increase the surface area of a solute
marta [7]

use a mortar & pestle to grind the solute into smaller particles, thus increasing the surface area.


6 0
3 years ago
Read 2 more answers
A molecular _________
Butoxors [25]

Answer:

A molecular formulae________

will tell you how many and what

kinds of atoms are in a molecule, but not how they are

arranged.

4 0
3 years ago
What is the pH of pure water at 40.0°C if the Kw at this temperature is 2.92 - 10-147 OA) 6.767 O B) 0 465 O c) 7.000 OD) 7 233
Sergeeva-Olga [200]

Answer:

PH= 6.767     (answer is the A option)

Explanation:

first we need to correct the value in Kw at this temperature is 2.92*10^-14

so, in this case we have that:

Kw=2.92*10^-14 M²

[ H3O^+] [ H3O^+]

[H_{3}O^{+}  ] [OH^{-}  ] = Kw = 2.92*10^{-14} M^{2}   \\\\

at 40ºC

[H_{3}O^{+}  ] = [OH^{-}  ]

[H_{3}O^{+}  ]^{2} = 2.92*10^{-14} M^{2}

[H_{3}O^{+}  ] = (2.92*10^{-14})^{1/2} = 1.71*10^{-7} M

PH= -log10[H_{3}O^{+}  ] = -log10(1.71*10^{-7} ) = 6.767

7 0
2 years ago
Which of the following is most likely to form multiple (double or triple) bonds? 1. Li 2. Cl 3. N 4. H 5. F
alukav5142 [94]

Answer: Option (3) is the correct answer.

Explanation:

Atomic number of lithium is 3 and its electronic distribution is 2, 1. So, to attain stability it will loose an electron and hence, it forms a single bond.

Atomic number of chlorine is 17 and it has 7 valence electrons. Hence, in order to attain stability it will gain one electron and therefore, it forms a single bond only.

Atomic number of nitrogen is 7 and its electronic distribution is 2, 5. Therefore, to attain stability it needs to gain 3 more electrons. Hence, a nitrogen atom is able to form a triple bond and also it is able to form a double bond.

Hydrogen has atomic number 1 and it attains stability by gaining one electron. Therefore, a hydrogen atoms always forms a single bond.

Atomic number of fluorine is 9 and its electronic distribution is 2, 7. To complete its octet it needs to gain one electron. Hence, a fluorine atom always forms a single bond.

Thus, we can conclude that out of the given options nitrogen is most likely to form multiple (double or triple) bonds.

3 0
2 years ago
Other questions:
  • What is a tube like structure of neurons
    10·1 answer
  • Who's good at chemistry? Maybe you can help me out?
    7·1 answer
  • NaHCO 3 and NaHSO 4 are acid salts. however aqueous solution of NaHCO 3 is basic while aqueous solution of NaHSO 4 is acidic. gi
    9·1 answer
  • In the reaction of chlorine with calcium, explain which atom is oxidized.
    5·1 answer
  • Does N2F2 obey the octet rule? Explain.
    11·1 answer
  • What are the reactants in a cheese sandwich
    6·2 answers
  • Pls help I don’t understand at all
    9·1 answer
  • for a theoretical yield of 22 g and actual yield of 13 g, calculate the percent yield for a chemical reaction
    7·1 answer
  • Why do you think lone pairs of electrons create greater repulsion when located near other
    7·1 answer
  • A chemist has a block of iron metal (density is 7.87 g/mL). They drop the metal into a graduated cylinder containing water, and
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!