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
Vilka [71]
3 years ago
5

How many oxygen atoms are in 7.90 g of Al2(SO4)3?

Chemistry
1 answer:
Zanzabum3 years ago
6 0
The answer to your question is 55,600,000,000,000,000,000,000atoms
You might be interested in
If the atomic number of an element is 6 and its mass number is 14, how many neutrons are contained in the nucleus?
aksik [14]

Answer:

8

Explanation:

because 14 - 6 is 8

4 0
3 years ago
Complete the acid–base equation for the dissolution of the following compound into liquid HF solvent. The relevant pKa values ar
LenKa [72]

Answer:

The balanced chemical equation: NH₃ + 2 HF → NH₄⁺ + HF₂⁻

Explanation:

According to the Brønsted–Lowry acid–base theory, the acid- base reaction is a type of chemical reaction between the acid and base to give a conjugate acid and a conjugate base.

In this reaction, a Brønsted–Lowry acid loses a proton to form a conjugate base. Whereas, a Brønsted–Lowry base accepts a proton to form a conjugate acid.

Acid + Base ⇌ Conjugate Base + Conjugate Acid

The acid dissociation constant (Kₐ) <em>signifies the acidic strength of a chemical species.</em>

∵ pKₐ = - log Kₐ

Thus for a strong acid, Kₐ value is large and pKₐ value is small.

pKₐ (HF) = 3.2 → strong acid

pKₐ (NH₃) = 38 → weak acid

<u>The chemical reaction involved in the dissolution process:</u>

NH₃ + 2 HF → NH₄⁺ + HF₂⁻

In this acid-base reaction, the acid HF reacts with NH₃ base to give the conjugate base HF₂⁻ and conjugate acid NH₄⁺.

<u>HF (acid) donates a proton to form the conjugate base, HF₂⁻ ion. NH₃ (base) accepts a proton to form the conjugate acid. </u>

7 0
3 years ago
What makes up the human body? (A)many different gases (B)carbon dioxide (D)many cells (C) minerals
never [62]

Answer:

<em></em>(B) Carbon Dioxide<em></em>

Explanation:

Roughly 96 percent of the mass of the human body is made up of just four elements: oxygen, carbon, hydrogen and nitrogen, with a lot of that in the form of water. The remaining 4 percent is a sparse sampling of the periodic table of elements

Hope this helps :)

4 0
3 years ago
Read 2 more answers
Viruses
Lelechka [254]

Answer:

just see it it will help trust me its my school work

Explanation:

Download pdf
7 0
2 years ago
Read 2 more answers
Lily took 57 seconds to walk from classroom to library. If the distance between the classroom and library was 38 m, at what aver
slamgirl [31]
1.5 sorry if I’m wrong!
4 0
3 years ago
Other questions:
  • Examine the images.
    9·2 answers
  • What is the formula balance, using scrips for sulfur + oxygen &gt; sulfur dioxide
    6·1 answer
  • A force of 26.4lb is applied to an area of 1.71 in2. What is the pressure?
    9·1 answer
  • What happens in the artificial transmutation of an element? Include an example.
    15·1 answer
  • If temperature is increased , the number of collision per second
    13·1 answer
  • In the presence of excess oxygen, methane gas burns in a constant-pressure system to yield carbon dioxide and water: CH4 (g) + 2
    6·1 answer
  • A chemical reaction is carried out in a closed container. the energy absorbed by the chemical reaction is 100 kj. What is the en
    13·1 answer
  • Tendency of some minerals to break along a smooth flat surface
    11·1 answer
  • An enzyme reduces the energy necessary to start a chemical reaction. This means the rate of reaction will
    8·1 answer
  • Arrange the steps typically followed in the data preparation process in the order of occurrence. (Place the first step at the to
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!