All categories

3 years ago

Consider the chemical equation below.

Chemistry

2 answers:

irina1246 [14]3 years ago

8 0

Answer is: A. H⁺ + OH⁻ → H₂O.

Balanced chemical reaction:

Mg(OH)₂ + 2HNO₃ → Mg(NO₃)₂ + 2H₂O.

Ionic reaction:

Mg²⁺ + 2OH⁻ + 2H⁺ + 2NO₃⁻ → Mg²⁺ + 2NO₃⁻ + 2H₂O.

Cancel all species that appear on both sides of the equation to get net ionic reaction.

Net ionic reaction: 2OH⁻ + 2H⁺ → 2H₂O or OH⁻ + H⁺ → H₂O;

Aleks [24]3 years ago

6 0

I would say A but then again im not too sure so hope that makes it easier to somehow

You might be interested in

Boyle's Law states that when a sample of gas is compressed at a constant temperature, the pressure P and volume V satisfy the eq

____ [38]

Answer:

The gas is decreasing at a rate of 50 cubic centimeters per minute.

Explanation:

The Boyle's Law is represented by the following expression:

$P\cdot V = k$ (1)

Where:

$P$ - Pressure, in kilopascals.

$V$ - Volume, in cubic centimeters.

$k$ - Proportionality constant, in kilopascal-cubic centimeters.

By definitions of rate of change and implicit differentiation, we derive the following differential equation:

$\dot P \cdot V + P\cdot \dot V = 0$ (2)

Where:

$\dot P$ - Rate of change of the pressure, in kilopascals per minute.

$\dot V$ - Rate of change of the volume, in cubic centimeters per minute.

Then, we clear the rate of change of the volume within (2):

$P\cdot \dot V = -\dot P\cdot V$

$\dot V = -\left(\frac{\dot P}{P} \right) \cdot V$

If we know that $P = 180\,kPa$ , $\dot P = 30\,\frac{kPa}{min}$ and $V = 300\,cm^{3}$ , then the rate of change of the volume is:

$\dot V = -\left(\frac{\dot P}{P} \right) \cdot V$

$\dot V = -50\,\frac{cm^{3}}{min}$

The gas is decreasing at a rate of 50 cubic centimeters per minute.

3 0

3 years ago

34.1 mg NaCl in 117.3 mL of solution

Solnce55 [7]

The molarity of the solution will be 4.97 M.

<h3>What is molarity?</h3>

It is the number of moles of solutes per 1 liter of solvent or solution.

Mole of 34.1 g NaCl = 34.1/58.44 = 0.5835 mol

117.3 mL = 117.3/1000 = 0.1173 L

Molarity of the solution = 0.5835/0.1173 = 4.97 M

More on molarity can be found here: brainly.com/question/2817451

#SPJ1

6 0

2 years ago

The average temperatures on the surface of five planets are given. Arrange the planets in decreasing order of their temperatures

Step2247 [10]

Where are the temperatures???

4 0

3 years ago

Read 2 more answers

Suppose you work for a government office that needs to find a suitable place to bury barrels of poisonous liquid wastes. The soi

Lilit [14]

Answer:

The correct answer is clay rich soil

Explanation:

because the clay soil has high porosity than sand for example, as the porosity is inversely proportional with the grain size of the sediment . and the more porosity the soil has , the high amount of water that can be hold by it.

so the clay rich soil can hold high amount of water more than any sediment soil

also the clay rich soil has a low permeability that means it rarely pass the water which it holds through it , because the clay is impermeable rock and the ability to pass liquids through its layer is very hard

So this is the good one

6 0

3 years ago

Read 2 more answers

Screen Shot 2020-10-07 at 10.43.35 AM<br><br> 40 points for whoever can fill out this chart

DENIUS [597]

Answer:

Explanation:

4 0

4 years ago