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
dlinn [17]
3 years ago
7

Calculate the amount of heat needed to boil 159.g of water

Chemistry
1 answer:
MissTica3 years ago
5 0
Okay I did the math and I'm guessing around 18*C
You might be interested in
How would you describe a food chain to someone who never thought about that idea before
umka21 [38]
A food chain is a sequence going from the producers on the bottom to the consumers to the top that shows what consumer eats what
6 0
3 years ago
A change in the core would have the greatest effect on what?
Misha Larkins [42]
<span>The magnetic field of the Earth serves a useful purpose in deflecting Solar radiation. Without the magnetic field there is much more charged-particle radiation striking the surface. The auroras would occur everywhere instead of at the magnetic poles. Compass needles wouldn't work, and then they would flip direction.. The magnetic field IS DECREASING and could go to zero and reverse sometime in the next few tens-of-thousands of years.</span>
6 0
4 years ago
Write the Henderson-Hasselbalch equation for a solution of formic acid. Calculate the quotient [HCO2]/[HCO2H] at (a) pH 3.000; (
Elena L [17]

Answer:

a. 0.182

b. 1.009

c. 1.819

Explanation:

Henderson-Hasselbach equation is:

pH = pKa + log [salt / acid]

Let's replace the formula by the given values.

a. 3 = 3.74 + log [salt / acid]

3 - 3.74 = log [salt / acid]

-0.74 = log [salt / acid]

10⁻⁰'⁷⁴ = 0.182

b. 3.744 = 3.74 + log [salt / acid]

3.744 - 3.74 = log [salt / acid]

0.004 = log [salt / acid]

10⁰'⁰⁰⁴ = 1.009

c. 4 = 3.74 + log [salt / acid]

4 - 3.74 = log [salt / acid]

0.26 = log [salt / acid]

10⁰'²⁶ = 1.819

3 0
3 years ago
Question 1 of 10What does the second quantum number (1) describe?O A. Which sublevel the electron is inB. Which energy level is
scoundrel [369]

Explanation:

The second quantum number also called the orbital quantum number describes the type of orbital or shape of it.

Answer: D. The specific orbital within a sublevel.

7 0
1 year ago
4. Which of the following NOT TRUE about real gas
Semenov [28]

Answer:

The answer is D.

Explanation:

Intermolecular force are negligible

When the distance between molecules decrease,

the attraction or repulsion become greater

7 0
2 years ago
Other questions:
  • A weight of 100 pounds moved a distance of 12 feet equals 120 240 1200 ft.-lbs. of work.
    8·1 answer
  • When science is used to create a new instrument, such as a cell phone, we say that a new ___________ has been developed.
    6·1 answer
  • For the reaction
    15·2 answers
  • What is generally true about the compressibility of solids?
    7·2 answers
  • Explain how the equation for GPE = force x distance.
    12·1 answer
  • Calcutale Grxn for the following equation at 25°C: <br><br> 4KClO3(s) → 3KClO4(s) KCl(s)
    8·1 answer
  • What was the purpose of letting the transformed cells sit in LB for a few minutes before spreading them onto the plates?
    11·1 answer
  • Which word goes we’re ?
    10·1 answer
  • Calculate the pOH for a solutions with a pH of 12.34. Is the solution acidic or basic?
    12·1 answer
  • Which quantity must be determined experimentally in order to determine the bonding atomic radius of an atom?.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!