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
slava [35]
4 years ago
15

Which of the following would decrease the pH level of an acidic solution? (2 points) adding a base to the acid increasing the co

ncentration of hydroxide ions decrease the concentration of hydronium ions increasing the number of hydrogen ions
Chemistry
1 answer:
natta225 [31]4 years ago
4 0

Answer:

increasing the number of hydrogen ions.

Explanation:

  • pH is a measure of the acidity or alkalinity of a solution.

<em>pH = -log[H⁺].</em>

  • The presence of H⁺ is the responsible of the acidity of the solution.
  • As the concentration of H⁺ increases, the acidity of the solution increases and so, pH decreases.

  • So, the right choice is: <em>increasing the number of hydrogen ions.</em>
You might be interested in
Consider the balanced equation. CuSO4 + Zn ------&gt; ZnSO4 + Cu If 200.0 g of copper(II) sulfate react with an excess of zinc m
Eva8 [605]
Let's break this down. We know from our balanced equation that (in theory) we'll get the same number of moles of copper out of the reaction that we put into it. So we need to find the number of moles of CuSO4 we have in 200.0 grams. Using the molar mass of CuSO4:
200.0 grams CuSO4 * (1 mole CuSO4)/(159.61 grams CuSO4) =
1.253 moles CuSO4
We know that the moles of CuSO4 and Cu are one-to-one, so we should yield the same number of moles of copper. If we multiply by copper's molar mass, we get:
1.253 moles Cu * (63.55 grams Cu)/(1 mole Cu) = 79.63 grams Cu

4 0
4 years ago
Read 2 more answers
30)
Feliz [49]

Answer:

D has to be based on facts so d would be the answer and idea that can only be proven true those are facts not hypothesis or guesses

Explanation:

based on a body of facts that have been repeatedly confirmed through observation and experiment. Such fact-supported theories are not "guesses" but reliable accounts of the real world."

6 0
3 years ago
Describe the particles that make up a pure substance
Anni [7]

Answer:

Each element consists of indivisible, minute particles called atoms.

All atoms of a given element are identical.

Atoms of different elements have different masses.

Explanation:

8 0
3 years ago
The volume of a gas is 550 mL at 960 mm Hg and 200.0 C. What volume
Masja [62]

Answer:

The volume will be 568.89 mL.

Explanation:

Boyle's law says that "The volume occupied by a given gaseous mass at constant temperature is inversely proportional to pressure"

Boyle's law is expressed mathematically as:

Pressure * Volume = constant

or P * V = k

Gay-Lussac's law indicates that when there is a constant volume, as the temperature increases, the pressure of the gas increases. And when the temperature is decreased, the pressure of the gas decreases. That is, the pressure of the gas is directly proportional to its temperature. Gay-Lussac's law can be expressed mathematically as follows:

\frac{P}{T}=k

Where P = pressure, T = temperature, K = Constant

Finally, Charles's law indicates that as the temperature increases, the volume of the gas increases and as the temperature decreases, the volume of the gas decreases. In summary, Charles's law is a law that says that when the amount of gas and pressure are kept constant, the quotient that exists between the volume and the temperature will always have the same value:

\frac{V}{T}=k

Combined law equation is the combination of three gas laws called Boyle's, Charlie's and Gay-Lusac's law:

\frac{P*V}{T} =k

Studying an initial state 1 and a final state 2, it is fulfilled:

\frac{P1*V1}{T1} =\frac{P2*V2}{T2}

In this case:

  • P1= 960 mmHg
  • V1= 550 mL
  • T1= 200 C= 473 K (being 0 C=273 K)
  • P2= 830 mmHg
  • V2= ?
  • T2= 150 C= 423 K

Replacing:

\frac{960 mmHg*550 mL}{473K} =\frac{830 mmHg*V2}{423 K}

Solving:

V2=\frac{423 K}{830 mmHg} *\frac{960 mmHg*550 mL}{473K}

V2= 568.9 mL

<u><em>The volume will be 568.89 mL.</em></u>

4 0
3 years ago
Atoms join with other atoms by bonding with them in order to become as chemically ____ as possible.
zloy xaker [14]
The answer is B.) stable ... all any atom wants to do is bond with a nother to share or take electrons to have a full valence shell
5 0
3 years ago
Read 2 more answers
Other questions:
  • Use bond energies to determine δhrxn for the reaction between ethane and chlorine. ch3ch3(g)+cl2(g)→ch3ch2cl(g)+hcl(g)
    9·2 answers
  • The central nitrogen atom in the no2- ion has __________ nonbonded electron pairs and __________ bonded electron pairs in its va
    13·2 answers
  • Which two biomes are known as the dry biomes?
    11·1 answer
  • An anaerobic reaction takes place
    12·1 answer
  • What Happens when the temperature of an object increases?
    9·2 answers
  • How are chemical bonds formed?
    5·2 answers
  • You and your sister both have a small camping tent set up in the backyard. You each have two strings of lights to hang inside th
    7·1 answer
  • Balance the equation for aluminum burning in oxygen to form aluminum oxide. ____Al + ____O2 ----&gt; Al2o3
    12·1 answer
  • Question 4 of 10
    12·1 answer
  • if 3.26 g of FeNO33 is dissolved in enough water to make exactly what is the molar concentration of nitrate ion g
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!