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
natita [175]
3 years ago
14

Please helppp final quiz helppp!!!!

Chemistry
1 answer:
Anna71 [15]3 years ago
4 0

Answer:

8 N.

force= mass*acceleration

You might be interested in
Which elements are solid at room temperature
Kryger [21]

Answer:bromine , neon , helium , argon , lithium , beryllium

Explanation:

8 0
3 years ago
Q26.<br>When added to 20 cm of 0.5 M sulphuric acid, which substance would give a neutral solution?​
wariber [46]

Answer:

Adding sodium or potassium hydroxide in amounts sufficient to convert all the H2SO4 into Na2SO4 would approximately neutralize the solution. The error would be the result of the imbalance between the basicity of the hydroxide and the acidity of the bisulfate (HSO4) anion. An adjustment in concentration would have to be made to achieve an accurate approximate pH of 7. But then you didn’t ask how much we would need to add.

Explanation:

<em><u>please</u></em><em><u> </u></em><em><u>mark</u></em><em><u> </u></em><em><u>as</u></em><em><u> </u></em><em><u>brainliest</u></em><em><u> </u></em>

4 0
3 years ago
A scuba diver with a local Sheriff’s office has been assigned the task of retrieving a sunken vessel in the Ocean. The vessel is
n200080 [17]
First, we convert the depth of the water into meters. This is:
60 feet = 18.3 meters

Now, we compute the additional pressure exerted due to the water, which is given by:
Pressure = density * gravitational field strength * height
P = 1000 * 9.81 * 18.3
P = 179.5 kPa

The atmosphere pressure is 101.325 kPa
The pressure of the gas bubbles 60 feet under water will be:
179.5 + 101.325 = 280.825 kPa

The pressure at the surface of the water will be equal to the atmospheric pressure, 101.325 kPa.

Because of this decrease in external pressure as gas bubbles rise, they are seen to expand.
4 0
3 years ago
If 3.0 liters of 0.50 m nacl (aq) is mixed with 9.0 liters of 0.2777 m nacl (aq), what is the final concentration of the resulti
Svetradugi [14.3K]
First, we shall calculate the total number of moles present in the final solution.
Number of moles in 0.50 m NaCl = molarity * volume = 0.50 * 3.0 = 1.5 moles.
Number of moles in 0.2777m NaCl = molarity * volume = 0.2777 * 9.0 = 0.24993 moles
Total number of moles = 1.5 + 0.24993 = 1.74993 moles

Second, we shall calculate the total volume of the final solution.
Total volume = 3 + 9 = 12 litres.

The molarity = total number of moles / total volume = 1.74993 / 12 = 0.1458 m
3 0
3 years ago
What is the percent by mass of oxygen?
Colt1911 [192]

Answer:

For oxygen: mass % O = (mass of 1 mol of oxygen/mass of 1 mol of CO2) x 100. mass % O = (32.00 g / 44.01 g) x 100. mass % O = 72.71 %

Explanation:

3 0
3 years ago
Other questions:
  • Which is untrue about covalent compounds?
    15·2 answers
  • Dr. Winters decides not to tell the people in his experiment about the potential risks. He
    12·1 answer
  • How might sharing data gathered by different regions allow scientists to better predict the weather.
    6·1 answer
  • A piece of brass is found to have a mass of 24.32 g. When placed in a graduated cyclinder with an initial reading of 5.60 mL the
    14·1 answer
  • A device that does work with only one movement is a simple machine <br> true or false
    14·1 answer
  • Which of these properties is the best one to use for identification of an element? 1.the number of neutrons in the atomic nucleu
    12·2 answers
  • Which term describes rocks that absorb water?
    14·1 answer
  • Name 2 diatomic molecules.
    10·1 answer
  • Would a thermos without a lid with water in it be an open or closed system? I'm so confused... also please explain your answer,
    11·1 answer
  • 18. What is the density of a substance with a mass of 0.90 kg and a volume of 1.2 mL?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!