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
Effectus [21]
3 years ago
15

How many molecules are in 4.5 moles of H2O?

Chemistry
1 answer:
Evgen [1.6K]3 years ago
6 0

Answer:

There would be around 2.7*10^24 molecules.

Explanation:

You have to multiply the amount of moles by Avogadro's number to get amount of molecules.

You might be interested in
Redox reactions can be written as two half-reactions, focusing on the gain or loss of electrons by one of the chemical substance
lutik1710 [3]

Answer:

C) H⁺

Explanation:

When we are balancing the reaction<em> in an acid medium</em>, hydrogen is balanced using the <u>H⁺</u> species. This is most likely the intended answer of your question.

When the reaction takes place not in an acid medium, but in <em>an alkaline one</em>, then hydrogen is present as the OH⁻ species. However this option is not given in your question.

Thus the answer is option C).

5 0
3 years ago
Elements with atomic numbers 7 and 83 have how many valence electrons? *
IRINA_888 [86]

Explanation:

element with atomic numbers 7 and 83 have 5 and 5 valence electrons

5 0
3 years ago
Explain ionization suppressants as applied to atomic spectrometry
levacccp [35]

An ionization suppressor is an alkali metal capable of preventing ionization, which can be used in atomic spectroscopy to determine matter composition.

<h3>What is ionization?</h3>

Ionization refers to the phenomena capable of converting neutral atoms/molecules to electrically charged atoms/ions.

Ionization is a process by which radiation (e.g., alpha, beta, gamma rays) can pass energy to inert matter.

Some examples of ionization suppressors include salts of alkali metals (for example, potassium), which can be used in atomic spectroscopy to determine matter composition.

Learn more about ionization here:

brainly.com/question/1445179

8 0
2 years ago
Which of the following best explains how subsoil becomes rich in minerals?
balu736 [363]
The nurse<span> is </span>caring<span> for a </span>client<span> with a temperature of 104.5 degrees Fahrenheit.  A health </span>care provider<span> prescribes 500 mg of an antibiotic intravenous  While undergoing a soapsuds </span>enema, theclient reports abdominal<span> cramping.</span>
5 0
3 years ago
Light brings many chemical changes. Can you think of any chemical change brought about by light? ​
strojnjashka [21]

Answer:

MRCORRECT has answered the question

Explanation:

Film photography is another example ofchemical reaction by light. In this example, the chemical compounds coated on the film go through a chemical reaction. ... These plates (usually made of aluminum) are coated with a photosensitive compound consisting of a polymer and a photosensitivechemical system.

4 0
4 years ago
Other questions:
  • How many atoms are there in 5.699 g of cobalt, Co? Express your answer with the appropriate significant figures and unit.
    12·1 answer
  • 4. What animal resources from other continents benefited South Americans?
    15·1 answer
  • According to the ph scale, which substance is the most basic?
    6·1 answer
  • A clear liquid in an open container is allowed to evaporate. after three days a solid residue is left. was the original liquid a
    7·1 answer
  • How many calories are required to convert 17 g of ice at 0.0°C to liquid water at 32.0°C? The heat of fusion of water is 80. c
    11·1 answer
  • If hydrogen and oxygen were to chemically bond together, what kind of bond would be created
    7·1 answer
  • At constant volume, you cool a sealed, air-filled can, and the pressure reduces by half. What happens in this situation? The num
    6·1 answer
  • The primary gas in a volcano is: water vapor carbon dioxide sulfur dioxide nitrogen
    5·2 answers
  • Un gas a una temperatura de 38°C, tienen un volumen de 21 Lts Litros. ¿Qué volumen tendrá si la temperatura sube a 67°C?.
    14·1 answer
  • NH, (aq) + H.,000
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!