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Natalka [10]
3 years ago
7

Which of these reactions can be classified as double replacement reactions?

Chemistry
1 answer:
Nikitich [7]3 years ago
7 0
Zn + 2 HCl = ZnCl₂ + H₂ ( <span>single replacement )

</span><span>2 NaCl + F</span>₂<span> = 2 NaF + Cl</span>₂<span><span>( single replacement )

2 AlBr</span></span>₃<span><span> + 3 K</span></span>₂<span><span>SO</span></span>₄<span><span> = 6 KBr + Al</span></span>₂<span><span>(SO</span></span>₄<span><span>)</span></span>₃<span><span> ( double replacement )

</span></span><span>2 K + MgBr</span>₂<span> = 2 KBr + Mg ( single replacement )

</span>Answer C

hope this helps!

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Franco was told that he had mycarditis. He went home and researched the disease, and he determined that he had
Reil [10]

Answer:

Myocarditis = C) Inflammation of the muscular wall of the heart.

Explanation:

Myocarditis is a condition usually caused by a virus.

It causes inflammation within the heart, generally along the muscular wall and within the middle layers.

It's definitely not a great condition. It's possible it could weaken his heart's ability to pump properly, which in turn could effect organs and cause organ failure. It'd lead to intense bouts of pain constantly, swelling, problems breathing, or even heart failure.

Feel bad for Franco.

6 0
3 years ago
Which of the following is the correct set-up for the problem: How many grams of water will be produced from 3.2 moles of oxygen
suter [353]

Option C is the correct set of the problem for mass of water produced by 3.2 moles of oxygen and an excess ethene.

<h3>Reaction between oxygen and ethene</h3>

Ethene (C2H4) burns in the presence of oxygen (O2) to form carbon dioxide (CO2) and water (H2O) along with the evolution of heat and light.

C₂H₄  + 3O₂   ----- > 2CO₂ + 2H₂O

from the equation above;

3 moles of O₂ ---------> 2(18 g) of water

3.5 moles of O₂ ----------> x

x = 3.2 \times [\frac{2 \ moles \ H_2O}{3 \ moles \ O_2}  ] \times[ \frac{18.02 \ g \ H_2O}{1 \ mole \ H_2O} ]

Thus, option C is the correct set of the problem for mass of water produced by 3.2 moles of oxygen and an excess ethene.

Learn more about reaction of ethene here: brainly.com/question/4282233

#SPJ1

6 0
2 years ago
A class wants to find the ideal temperature for plants to grow in a terrarium. If the students set up several terrariums, what s
Veseljchak [2.6K]

It would be B because you want to know which TEMPERATURE is the best for the plant. Different brightness for a bulb will give different amounts of heat. Since the amount of heat is your INDEPENDENT VARIABLE, you have to change the amount of heat for each plant, so the brightness of bulbs. Therefore, B is your answer!

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3 years ago
When a planet has the illusion of moving backwards or bouncing up and down it is exhibiting what?
Goryan [66]

Answer:  It is exhibiting retrogade motion.

7 0
3 years ago
Which of the following is a salt? <br> C6H12O6<br><br> O2<br><br> C2H2<br> K C l
irina [24]

Answer:

it's kcl

Explanation:

the kcl should be salt

5 0
2 years ago
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