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
Maslowich
3 years ago
8

An atom has 25 protons, 30 neutrons, and 25 electrons. What is the charge of the

Chemistry
1 answer:
Alexandra [31]3 years ago
5 0
I am not sure but i think the first option is the correct answer
You might be interested in
Write the cell notation for the voltaic cell that incorporates each of the following redox reactions:(a) Al(s) + Cr³⁺(aq) → Al³⁺
Sladkaya [172]

The cell notation for the given voltaic cell is as follows

Al(s) | Al³⁺(aq) || Cr³⁺ (aq) | Cr(s)

<h3>What is a voltaic cell?</h3>

The device in which electrons are transferred through an external source is known as a voltaic cell.

The electron flow of a Voltaic cell allows redox reactions to produce energy in the form of electricity.

It converts the energy of spontaneous redox reaction into electrical energy

An anode, a cathode, and a salt bridge are all parts of a voltaic cell's setup. The salt bridge serves to neutralize the system.

To write the cell notation, identify the oxidation and reduction reactions.

At the anode, oxidation takes place

Al(s) \longrightarrow Al^{3+} (aq) + 3e^-

At the cathode, reduction takes place

Cr^{3+} (aq) + 3e^- \longrightarrow Cr(s)

While writing cell notation, the anode is written on the left, and the cathode is written on the right

A single vertical line differentiates between the phases and a double vertical line represents the salt bridge.

Now, write the cell notation of the given Voltaic cell

Al(s) | Al³⁺(aq) || Cr³⁺ (aq) | Cr(s)

Learn more about Voltaic cells:

brainly.com/question/14312871

#SPJ4

7 0
2 years ago
The Law of Conservation of Matter describes how mass is not lost during a chemical reaction.
weeeeeb [17]

False, it states that matter can be nether created nor destroyed

7 0
2 years ago
Read 2 more answers
A balloon contains 2.0 L of air at 101.5 kPa . You squeeze the balloon to a volume of 0.25 L.
8_murik_8 [283]
<h3>Answer:</h3>

812 kPa

<h3>Explanation:</h3>
  • According to Boyle's law pressure and volume of a fixed mass are inversely proportional at constant absolute temperature.
  • Mathematically, P\alpha \frac{1}{V}

At varying pressure and volume;

P1V1=P2V2

In this case;

Initial volume, V1 = 2.0 L

Initial pressure, P1 = 101.5 kPa

Final volume, V1 = 0.25 L

We are required to determine the new pressure;

P2=\frac{P1V1}{V2}

Replacing the known variables with the values;

P2=\frac{(101.5)(2.0L)}{0.25L}

           = 812 kPa

Thus, the pressure of air inside the balloon after squeezing is 812 kPa

8 0
3 years ago
I wrote that all matter consists of tiny particles called atoms. I also thought all atoms of a specific
Westkost [7]

Answer:

John Dalton

Explanation:

John Dalton in 1808 suggested that all matter consists of tiny particles called atoms and that the atoms of a specific element are identical.

He postulated the Dalton's atomic theory which has the following important parts;

  • All matters consists of indivisible particles called atoms
  • Atoms of the same element are similar and are different from atoms of other elements.
  • Atoms can neither be created nor destroyed.
  • Atoms combine in simple whole ratios to form compounds.
7 0
2 years ago
What happens inside a can of spoiled food as gas is produced?
ddd [48]

Answer:D the pressure increases

Explanation:

6 0
2 years ago
Other questions:
  • What is the theoretical yield of so3 produced by the quantities described in part a?\?
    7·1 answer
  • What is the composition of the mantle
    14·2 answers
  • The largest ruby isnthe world is 10.9 cm long, 9.1 cm wide and 5.8 cm thick, giving
    9·1 answer
  • Where do animals get glucose from
    5·2 answers
  • What do all iron atoms and ions have in common ?
    5·2 answers
  • What is thermodynamics ??? <br>don't explain .-. !!!​
    9·1 answer
  • How much heat is absorbed when 15.0 g of liquid water is
    9·1 answer
  • Which units can be used to measure length or distance? Check all that apply.
    12·1 answer
  • What happens to the end of the O2 molecule that is closest to the positive end of the H2O molecule?
    5·1 answer
  • How many taste buds are present on the tongue? Name them. ​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!