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Likurg_2 [28]
2 years ago
14

Can someone help me here lol

Chemistry
2 answers:
Romashka-Z-Leto [24]2 years ago
8 0

Answer:

3) option c

4) option b

5) option a

<u><em>pls mark brainliest</em></u>

icang [17]2 years ago
6 0
The person above is correct
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4 Compare What is the difference between<br> temperature, thermal energy, and heat?
Ivahew [28]

Answer:

The term temperature refers to the average amount of heat or the motion energy of particles in a substance. It measures the hotness and coldness of a substance. If an object has particles that move very fast, then it has a high temperature.

Temperature is different from the term thermal energy. Thermal energy is the total motion energy of particles in a substance. The movement of particles is always dependent on their number. If an object contains many particles, then it has greater thermal energy.

On the other hand, Heat is the energy that is involved in the movement of particles between objects that have different temperatures, particularly from an object with a high temperature to an object with a low temperature.

4 0
2 years ago
Read 2 more answers
Define solubility. the amount of a substance that will dissolve in a given amount of solvent a solid mixed with another solid a
slavikrds [6]

Answer:

You answered your own question

5 0
3 years ago
Write an equation to show how hco3− can act as a base with hs− acting as an acid.
Ne4ueva [31]

Answer:  HCO_{3}^{-}+ HS^{-}\rightleftharpoons H_{2}CO_{3} + S^2{-}

Explanation:

According to Bronsted and Lowry an acid is a proton donor and base is a proton acceptor.

Therefore, the equation for the reaction will be as follows.

       HCO_{3}^{-}+ HS^{-}\rightleftharpoons H_{2}CO_{3} + S^2{-}

Here, HCO_{3}^{-} acts as a base as it is accepting a proton and HS^{-} acts as an acid because it is donating a proton.


3 0
3 years ago
Read 2 more answers
Consider the following balanced equation for the dissociation of barium hydroxide in an aqueous solution.<img src="https://tex.z
Stolb23 [73]

Answer:

a. 0,035M

Explanation:

For the reaction:

Ba(OH)₂(s) ⇄ Ba²⁺(aq) + 2OH⁻(aq)

Ksp is defined as:

Ksp = [Ba²⁺] [OH⁻]²

5x10⁻³ = [Ba²⁺] [OH⁻]²

if is added a solution of 1M of Ba²⁺:

5x10⁻³ = [1M] [OH⁻]²

The addition of barium hydroxide Ba(OH)₂ gives:

[Ba²⁺] = 1M + x

[OH⁻]² = 2x

Replacing:

5x10⁻³ = [1 + x] [2x]²

5x10⁻³ = 4x² + 4x³

Solutions are:

x = -1,00 M

x = -0,036 M

<em><u>x = 0,035 M</u></em> → Right answer, there are not negative concentrations.

Thus, solubility is

<em>a. 0,035M</em>

<em></em>

I hope it helps!

4 0
3 years ago
Hree carbon atoms are linked by single covalent bonds such that they form the shape of a v. all of the unshared electrons form c
7nadin3 [17]
Carbon atom having 4 valence electrons can form 4 covalent Bonds. As there are 3 carbon atoms in the molecule connected to each other by single bond. So the terminal carbons are left with 3 unbonded electrons and the central carbon is left with two unbonded electrons. So, terminal carbons will further form three single bonds with 3 hydrogen atoms each and the central carbon will form two covalent bonds with 2 hydrogen atoms, i.e. 

                                             H₃C-CH₂-CH₃

Result: 
          This Molecule contains 8 Hydrogen atoms.
8 0
2 years ago
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