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xz_007 [3.2K]
3 years ago
8

During which of the following chemical changes does a precipitate form

Chemistry
1 answer:
shepuryov [24]3 years ago
4 0
<span> when the cations of one reactant and the anions of a second reactant found in aqueous solutions combine to </span>form<span> an insoluble ionic solid that we call a </span>precipitate<span>.</span>
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Please answer step by step.
Digiron [165]

3 moles of NaOH reacts with 1 mole of phosphoric acid.

<h3>What is the moles ratio of the NaOH and Phosphoric acid reaction?</h3>

The moles ratio of the reaction between NaOH and Phosphoric acid is given by the equation of the reaction below:

3\:NaOH + H_{3}PO_{4} \rightarrow Na_{3}PO_{4} + 3\:H_{2}O \\

Based on the equation of the reaction, 3 moles of NaOH reacts with 1 mole of phosphoric acid.

Learn more about mole ratio at: brainly.com/question/19099163

#SPJ1

3 0
2 years ago
A student has a rectangular block. It is 2 cm wide. 3 cm tall and 25cm long. It has a mass of 600 g. First, calculate the volume
Klio2033 [76]

Answer:

The area of the block is 150 cm

Explanation:

8 0
3 years ago
A student performs an experiment to determine the density of a sugar solution. She obtains the following results: 1.79 g/mL, 1.8
Pachacha [2.7K]

Answer:

(B) Her results are both precise and accurate.

Explanation:

In Chemistry, Accuracy refers to how close a measurement is to it's standard value or known value. On the other hand, Precision means how close two measurement are to each other regardless whether the results are accurate or not.

In the above question, all the above results are very close to each other. That's why the results are Precise to each other. All the results  are close enough to the actual value of the experiment. That's why the result are also accurate.

5 0
4 years ago
Chlorine (cl) has an atomic number of 17. it often forms an ion by gaining 1 electron. what would its charge be?
Aliun [14]

Answer:

= -1

Explanation:

  • Chlorine belongs to the halogen group in the periodic table. It has an atomic number of 17, which indicates the number of protons and electrons in a neutral atom of chlorine is 17.
  • Therefore; with an atomic number of 17, its electronic configuration will be 2:8:7.
  • Thus; to attain a stable configuration chlorine requires to gain one electron, by so doing it becomes a negatively charged ion with a charge of -1.
6 0
3 years ago
Read 2 more answers
Golf ball has less mass than a tennis ball because it
spayn [35]

Answer:

B. Contains more matter

Explanation:

The answer is C because it makes sense to me and a golf ball does contain more matter than a tennis ball

Sorry if I'm wrong :(

6 0
3 years ago
Read 2 more answers
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