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nikdorinn [45]
3 years ago
13

Help with this question

Chemistry
1 answer:
Illusion [34]3 years ago
8 0

Answer:

So the number of protons equals the number of electrons.

Explanation:

Ionic bond, also called an electrovalent bond, type of linkage formed from the electrostatic attraction between oppositely charged ions in a chemical compound. Such a bond forms when the valence (outermost) electrons of one atom are transferred permanently to another atom.

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What is true about an atom in an excited state? Select all that apply:
AnnyKZ [126]

Explanation:

What is true about an atom in an excited state? Select all that apply:

A. It is less likely to enter chemical reactions.

B. It is more likely to enter chemical reactions.

C. It has less energy than a ground state atom.

D. It has more energy than a ground state atom.

4 0
3 years ago
A tablet of Pain Be Gone Aspirin, which had a mass of 1.213 g, was pulverized and 1.159 g were dissolved in 10.0 mL of ethyl alc
allochka39001 [22]

Answer:

Moles of NaOH that reacted: n_{NaOH}=1.64*10^{-3}mol

Explanation:

During the  titration, all moles of NaOH added in the solution, react with the acetylsalicylic acid neutralizing each other.

The titration required 15.62 ml (0.01562 L) of the 0.1052 M NaOH solution. The moles of NaOH in that volume are:

n_{NaOH}=0.01562 L * \frac{0.1052mol}{L}

n_{NaOH}=1.64*10^{-3}mol

8 0
3 years ago
Which requires more heat to warm from 22.0°C and 85.0°C, 45.0 g of water or 200. g of aluminum metal?
stich3 [128]

Answer:

The answer to your question is Aluminum

Explanation:

We need to warm from 22°C to 85°C

a) 45 g of water                      

b) 200 g of aluminum             Cp = 0.905 J/cal°C

a) Water

Q = mCpΔT

Q = (45)(1)(85 - 22) = 45(63) = 2835 cal

b) Aluminum

Q = (200)(0.905)(85 - 22) = 114030 cal

5 0
3 years ago
The shadow zone exists because:
Sliva [168]

Answer: I would say that the answer is C.)  P waves reflect as they travel through Earth.

Explanation:

6 0
3 years ago
Which is/are used in nuclear reactors to absorb neutrons?
daser333 [38]

Answer:

A. heavy nuclei

Explanation:

They absorb neuyrons in order to hain stability.

8 0
3 years ago
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