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Sholpan [36]
4 years ago
13

Help please! What is the mass of the iron (Fe) involved in this reaction? Identify the following equations as balanced or unbala

nced
(4 questions) Will give brainliest! and points

Chemistry
1 answer:
eimsori [14]4 years ago
6 0
<h2>Question 1:</h2><h3>32g + <u><em>56g</em></u> --> 88g</h3>

This one's just a simple math problem. Do 88 - 32, which is 56. You can also find the same answer by looking for the atomic mass of iron (Fe), which rounds up to 56.


<h2>Question 2:</h2><h3>This equation is <u><em>balanced</em></u>.</h3>

On the left side, there is 2 Nitrogen (because of the subscript), and 6 Hydrogen (3 x 2 = 6). On the right side, there is 2 Nitrogen (because of the coefficient), and 6 Hydrogen. (2 x 3 again) There are 2 Nitrogen and 6 Hydrogen on each side, therefore the equation is balanced.


<h2>Question 3:</h2><h3>This equation is <em><u>unbalanced.</u></em></h3>

On the left side, there are 2 Nitrogen (N) and 2 Hydrogen (H). On the right side, there is 1 Nitrogen and 6 Hydrogen. There are 2 Nitrogen and 2 Hydrogen on one side, while the other only has 1 Nitrogen and 6 Hydrogen. Therefore the equation is unbalanced.


<h2>Question 4:</h2><h3>This equation is <em><u>balanced.</u></em></h3>

On the left side, there are 2 Chromium (Cr) and 6 Chlorine (Cl). On the right side, there are 2 Chromium and 6 Chlorine. There are 2 Chromium and 6 Chlorine on each side, therefore the equation in balanced.

~~~~~~~~~~~~~~~~~~~~~~~

If something is confusing or doesn't make any sense, feel free to let me know! ^^

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3 0
4 years ago
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Aqueous potassium chloride will react with which one of the following to form a precipitation reaction?
Svetllana [295]

Answer:

lead (II) chlorate

Explanation:

precipitate means not soluble in water

potassium chlorate is not very soluble in water, it precipitates and may be collected by filtration

lead(II) chloride can be made as a white precipitate by adding a solution containing chloride ions to lead(II) nitrate solution

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5 0
2 years ago
A gas system has an unknown pressure and an initial temperature of 299K. When the temperature is increased to 620 K the pressure
const2013 [10]

Answer:

3.75 atm

Explanation:

Volume remains constant, so we can use <em>Gay-Lussac’s Law</em>.

<em>p</em>₁/<em>T</em>₁ = <em>p</em>₂/<em>T</em>₂                           Multiply both sides by <em>T</em>₁  

<em>p</em>₁ = <em>p</em>₂ × <em>T</em>₁/<em>T</em>₂

<em>p</em>₁ = ?;              <em>T</em>₁ = 299 K

<em>p</em>₂ = 7.77 atm; <em>T</em>₂ = 620 K     Insert the values

<em>p</em>₁ = 7.77 × 299/620              Do the operations

<em>p</em>₁ = 3.75 atm

3 0
3 years ago
Q1 - How would you balance the following equation: N₂ + O₂ N₂O₅
MArishka [77]

nswer:

For Q1 its B!

Explanation:

cuz I'm smart dw.

8 0
3 years ago
What volume of an hcl solution with a ph of 1.3 can be neutralized by one dose of milk of magnesia?
kvv77 [185]

274 mL H3 O+ and fully neutralized

It will take one teaspoon of Mg(OH)2 to completely neutralize 2.00×10^2mL  of H3O+.

<h3>What is the purpose of milk of magnesia?</h3>
  • For a brief period of time, this medicine is used to relieve sporadic constipation.
  • It is an osmotic laxative, which means that it works by drawing water into the intestines, which aids in causing bowel movement.
<h3>What dosage of milk of magnesia is recommended for constipation?</h3>
  • Take Milk of Magnesia once day, preferably before bed, in divided doses, or as prescribed by a physician.
  • suggested dosage: 30 mL to 60 mL for adults and kids 12 years of age and older. 15 mL to 30 mL for children aged 6 to 11 years.

learn more about milk of magnesia here

brainly.com/question/15178597

#SPJ4

the question you are looking for is

People often take milk of magnesia to reduce the discomfort associated with acid stomach or heartburn. The recommended dose is 1 teaspoon, which contains 4.00x 10^{2} mg of Mg(OH)_2. What volume of an HCl solution with a pH of 1.3 can be neutralized by one dose of milk of magnesia? If the stomach contains 2.00x10^{2}mL of pH 1.3 solution, is all the acid neutralized? If not, what fraction is neutralized?

7 0
1 year ago
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