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RUDIKE [14]
3 years ago
14

Which of these is most likely the cause of a father and son having almost identical-sounding voices?

Chemistry
1 answer:
Serga [27]3 years ago
6 0
It would be C. inherited characteristics
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Which contain a common ion that will shift the equilibrium system represented by the equation shown? Select all that apply. MgSO
inn [45]

The compounds in the reaction that shifts the equilibrium with the common ion effect are \rm MgSO_2\;and\;HNO_3.

<h3>What is the common ion effect?</h3>

The equilibrium condition has an equal amount of reactant and products in the reaction.

The addition of ions same as product or reactant results in a change in the equilibrium of condition and shifts the equilibrium in opposite direction.

The given reaction is:

\rm H_2SO_4\;\rightleftharpoons 2H^+\;+\;SO_4^{2-}

The addition of sulfate and hydrogen ions shifts the equilibrium.

Thus, the compounds that shift the equilibrium for the reaction are \rm MgSO_2\;and\;HNO_3.

Learn more about equilibrium, here:

brainly.com/question/4289021

4 0
2 years ago
What quantity is a scalar quantity? ​
KiRa [710]
Answer:

A scalar quantity is a quantity that includes both magnitude (the number) and a unit, but not direction.

An example of this is 5m.
5 0
3 years ago
How can you increase an object's kinetic energy?
lord [1]
Let’s say you are a race car driver and you are trying to beat the other racers and then you decide to increase your speed and as you are increasing speed you are also increasing kinetic energy. Hope this helps :)
8 0
3 years ago
How many atoms are present in a sample of Potassium (K) weighing 33.49g?
madam [21]

Answer:

5.158 × 10²³ atoms K

General Formulas and Concepts:

<u>Chemistry - Atomic Structure</u>

  • Reading a Periodic Table
  • Using Dimensional Analysis
  • Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.

Explanation:

<u>Step 1: Define</u>

33.49 g K

<u>Step 2: Identify Conversions</u>

Avogadro's Number

Molar Mass of K - 39.10 g/mol

<u>Step 3: Convert</u>

<u />33.49 \ g \ K(\frac{1 \ mol \ K}{39.10 \ g \ K} )(\frac{6.022 \cdot 10^{23} \ atoms \ K}{1 \ mol \ K} ) = 5.15797 × 10²³ atoms K

<u>Step 4: Check</u>

<em>We are given 4 sig figs. Follow sig figs and round.</em>

5.15797 × 10²³ atoms K ≈ 5.158 × 10²³ atoms K

3 0
3 years ago
What is true about water that is freezing?
Liono4ka [1.6K]
It is going through a physical change
4 0
3 years ago
Read 2 more answers
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