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
nekit [7.7K]
3 years ago
10

Hi guys I need an science matter experiment to do at school. For example which chocolate is best to take at a hot climate? Dark,

white or milk?
I need something WOW.
Chemistry
1 answer:
inysia [295]3 years ago
3 0
Dark is the strongest chocolate.
You might be interested in
The highest tides of the year are neap tides. True False
just olya [345]
I think its false...
8 0
3 years ago
Read 2 more answers
All three of the phosphorus-fluorine single bonds in pf3 are polar. in which direction should the polarity arrows point?
nydimaria [60]
One of the causes of polarity is the unequal forces of the dipole forces due to differences in electronegativity. The more electronegative molecule tend to attract electrons, hence the polarity arrows point towards it. The electronegativity of Phosphorus and Fluorine is 2.19 and 3.98, respectively. Thus, it points outward towards the fluorine atoms.
3 0
3 years ago
Calculate the molarity of a solution prepared by dissolving 0.2 mol sucrose in enough water to make a 100 ml solution.
Lelechka [254]

Taking into account the definition of molarity, the molarity of a solution prepared by dissolving 0.2 mol sucrose in enough water to make a 100 mL solution is 2 \frac{moles}{liter}.

<h3>Definition of molarity</h3>

Molar concentration or molarity is a measure of the concentration of a solute in a solution and indicates the number of moles of solute that are dissolved in a given volume.

The molarity of a solution is calculated by dividing the moles of solute by the volume of the solution:

molarity=\frac{number of moles}{volume}

Molarity is expressed in units \frac{moles}{liter}.

<h3>Molarity in this case</h3>

In this case, you have:

  • number of moles= 0.2 moles
  • volume= 100 mL= 0.1 L

Replacing in the definition of molarity:

molarity=\frac{0.2 mole}{0.1 L}

Solving:

<u><em>molarity= 2 </em></u>\frac{moles}{liter}

Finally, the molarity of a solution prepared by dissolving 0.2 mol sucrose in enough water to make a 100 mL solution is 2 \frac{moles}{liter}.

Learn more about molarity:

brainly.com/question/9324116

brainly.com/question/10608366

brainly.com/question/7429224

8 0
2 years ago
How many mL of 0.013 M potassium hydroxide are required to reach the equivalence point in the titration of 75 mL 0.166 M hydrocy
umka21 [38]

Answer:

957.7mL

Explanation:

Using the formula below;

CaVa = CbVb

Where;

Ca = concentration of acid (M)

Va = volume of acid (mL)

Cb = concentration of base (M)

Vb = volume of base (mL)

According to the information provided in this question:

Ca = 0.166 M

Cb = 0.013 M

Va = 75mL

Vb = ?

Using CaVa = CbVb

0.166 × 75 = 0.013 × Vb

12.45 = 0.013Vb

Vb =12.45/0.013

Vb = 957.7mL

6 0
3 years ago
Give an example of two other body systems that work together and explain how they support each other.
gulaghasi [49]

Answer:

2 examples are cardiovascular and respiratory systems.

7 0
3 years ago
Other questions:
  • How does water heat earth
    13·1 answer
  • Determine the value of the equilibrium constant, Kgoal, for the reaction CO2(g)⇌C(s)+O2(g), Kgoal=? by making use of the followi
    11·1 answer
  • Which has more thermal energy, 500g of ice or 500g of steam? explain your answer.
    14·1 answer
  • Some of the chemicals in tobacco products cause cancer. these products are called
    11·1 answer
  • Escribe dos ejemplos para cada tipo de mezcla entre: ● Sólido-sólido:
    6·1 answer
  • Which element has the highest melting point? ​
    6·2 answers
  • For test 6 (150 hevy 50 light particles), what is the pressure contribution from the heavy particles?
    5·1 answer
  • <img src="https://tex.z-dn.net/?f=v%3D0.164m%2A8.3cm%2A12.4cm" id="TexFormula1" title="v=0.164m*8.3cm*12.4cm" alt="v=0.164m*8.3c
    5·1 answer
  • A compound with the empirical formula CH2 was found to have a molar mass of approximately 112 g. Write the molecular formula of
    7·1 answer
  • What is the hydroxide ion concentration of a solution with a ph of 8. 25?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!