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
andrezito [222]
3 years ago
14

Describe a powerful force?

Chemistry
2 answers:
faltersainse [42]3 years ago
8 0
Gravity is one example of a powerful force
Juli2301 [7.4K]3 years ago
7 0

Answer:

Gravity is a powerful force.

Explanation:

You might be interested in
What does sodium react with
Pani-rosa [81]
Sodium reacts with water to form a colorless solution of sodium hydroxide and hydrogen gas.
5 0
3 years ago
You wish to prepare an HC2H3O2 buffer with a pH of 4.24. If the pKa of is 4.74, what ratio of C2H3O2 /HC2H3O2 must you use?
LenaWriter [7]

To solve this problem, we can use the Henderson-Hasselbalch Equation which relates the pH to the measure of acidity pKa. The equation is given as:<span>

<span>pH = pKa + log ([base]/[acid])                ---> 1</span></span>

Where,

[base] = concentration of C2H3O2 in molarity or moles

<span>[acid] = concentration of  HC2H3O2 in molarity or moles</span>

 

For the sake of easy calculation, let us assume that:

[base] = 1

[acid] = x

<span>
Therefore using equation 1,
4.24 = 4.74 + log (1 / x) 

<span>log (1 / x) = - 0.5

1 / x = 0.6065 </span></span>

x = 1.65<span>

The required ratio of C2H3O2 /HC2H3O2 <span>is 1:1.65 or 3:5. </span></span>
3 0
3 years ago
A chemical formula represents:
Ivenika [448]

Answer:

no

Explanation:

it is a molecular formula that represents the number atoms and type of atoms

7 0
3 years ago
What property of water molecules allows water to dissolve many substances
hodyreva [135]

Answer:

Its high polarity

Explanation:

Solvent is the that part of solution which is present in large proportion and have ability to dissolve the solute. In simplest form it is something in which other substance get dissolve. The most widely used solvent is water, other examples are toluene, acetone, ethanol, chloroform etc.

Water is called universal solvent because of high polarity all polar substance are dissolve in it. Hydrogen is less electronegative while oxygen is more electronegative and because of difference in electronegativity hydrogen carry the partial positive charge while oxygen carry partial negative charge.

Water create electrostatic interaction with other polar molecules. The negative end of water attract the positive end of polar molecules and positive end of water attract negative end of polar substance and in this way polar substance get dissolve in it.

Example:

when we stir the sodium chloride into water the cation Na⁺ ions are surrounded by the negative end of water i.e oxygen and anion Cl⁻ is surrounded by the positive end of water i.e hydrogen and in this way all salt is get dissolved.

5 0
3 years ago
Which of the following is a unit of mass in the metric system? (4 points)
Ronch [10]
The correct answer is gram
6 0
3 years ago
Read 2 more answers
Other questions:
  • Solid aluminum (AI) and oxygen (O_2) gas react to form solid aluminum oxide (Al_2O_3). Suppose you have 7.0 mol of Al and 9.0 mo
    7·1 answer
  • How many moles are in 234.4 grams of oxygen
    14·1 answer
  • How does a drop in pressure affect a gaseous system at equilibrium
    11·1 answer
  • Write 0.00057824 in Engineering Notation with 3 significant figures.
    12·1 answer
  • Tell correctly I will mark you brainliest...
    8·2 answers
  • Which are functions of nucleic acids?
    10·1 answer
  • Non-living parts of an ecosystem (air, water, soil)
    6·1 answer
  • Methyl orange can change color by transitioning from one chromophore to another. When added to a clear solution and the solution
    8·1 answer
  • What is the anwser to this question
    8·1 answer
  • 3. Hypothesize Earth systems interact with
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!