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
Nikolay [14]
1 year ago
9

Which

Chemistry
1 answer:
ELEN [110]1 year ago
6 0

Answer:

D

Explanation:

Well it clearly had two hydrogens and one oxygen hence H2O,, and valence electrons are shared between the the atoms not transferred which makes it an covalent bond. As for the polar part, I'm not sure how to explain it well, but I has something to do with partially negative and positive charged atoms.

You might be interested in
At 1 atm, how much energy is required to heat 75.0 g H 2 O ( s ) at − 20.0 ∘ C to H 2 O ( g ) at 119.0 ∘ C?
Hitman42 [59]

Answer:

238,485 Joules

Explanation:

The amount of energy required is a summation of heat of fusion, capacity and vaporization.

Q = mLf + mC∆T + mLv = m(Lf + C∆T + Lv)

m (mass of water) = 75 g

Lf (specific latent heat of fusion of water) = 336 J/g

C (specific heat capacity of water) = 4.2 J/g°C

∆T = T2 - T1 = 119 - (-20) = 119+20 = 139°C

Lv (specific latent heat of vaporization of water) = 2,260 J/g

Q = 75(336 + 4.2×139 + 2260) = 75(336 + 583.8 + 2260) = 75(3179.8) = 238,485 J

3 0
3 years ago
How many moles are present in a 5.8 g sample of copper?
Oksanka [162]

Explanation:

Molar mass of Cu = 63.5g/mol

Moles of Cu

= 5.8g / (63.5g/mol) = 0.091mol (B)

8 0
2 years ago
(c) O2 gas is transferred from a 3 L vessel containing oxygen at 4 atm to an evacuated 20 L vessel at a constant temperature of
Fudgin [204]

Answer:

After the transfer the pressure inside the 20 L vessel is 0.6 atm.

Explanation:

Considering O2 as an ideal gas, it is at an initial state (1) with V1 = 3L and P1 = 4 atm. And a final state (2) with V2 = 20L. The temperature remain constant at all the process, thus here applies the Boyle-Mariotte law. This law establishes that at a constant temperature an ideal gas the relationship between pressure and volume remain constant at all time:

P x V = k

Therefore, for this problem the step by step explanation is:

P_{1} xV_{1} = P_{2} xV_{2}

Clearing P2 and replacing

P_{2}= \frac{P_{1} xV_{1}}{V_{2} } = \frac{4atmx3L}{20L} = 0.6atm

7 0
3 years ago
What type of tectonic activity occurs in the San Andreas Fault?
kykrilka [37]

The answer is a strike-slip. More specifically a right-lateral strike-slip.

6 0
3 years ago
Table 2 Heat of Reaction of NaOH (aq) and HCl(aq) Solution
kondaur [170]

Answer:

the molarity of NaOH is 1.10. And the molarity of HCl is 1.10. And the initial Temp=0.50(°c). and The final Temp= 1.10(°c)

8 0
3 years ago
Other questions:
  • When 4.31 g of a nonelectrolyte solute is dissolved in water to make 635 mL of solution at 28 °C, the solution exerts an osmotic
    13·1 answer
  • Atoms contain subatomic particles called protons and neutrons. When these protons and neutrons split, a lot of energy is release
    8·2 answers
  • Definition of immiscible
    14·2 answers
  • Suppose a solution is prepared by dissolving 15.0 g NaOH in 0.150 L of 0.250 M nitric acid. What is the final concentration of O
    8·1 answer
  • What Will We Do? We will determine if a pen is a system. What function does a pen perform? ​
    9·1 answer
  • Choose the transition metal among the following which has only single ionic charge ?
    5·1 answer
  • What part of the cell do energy storage molecules come from ?
    13·1 answer
  • 25 POINTS PLS ANSWER
    5·1 answer
  • How many molecules are in 41.8 g H2O?
    7·2 answers
  • Can someone help me please
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!