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kupik [55]
3 years ago
11

For each of the reactions provided, write a balanced equation. Then, using your knowledge of reaction types and the activity ser

ies as needed, explain what type of reaction occurred and/or how you determined that a reaction occurred.
a. A strip of magnesium is added to a solution of silver nitrate.
b. A solution of copper(II) chloride is added to a solution of sodium sulfide.
c. Sodium oxide and water are formed from sodium hydroxide.
Chemistry
1 answer:
pshichka [43]3 years ago
5 0

Answer:

a.monadioxide

Explanation:

for maintaince of different gases in the air to separate reactions of chemicals

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A student investigated the factors that affect math grades. Which statement from the lab report best represents a conclusion for
joja [24]

The correct answer choice from the statement above about investigated factors from lab results is :

Students who spend less time studying after school get lower math grade

Option D is the correct answer

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Mathematics is one of the most important aspect of knowledge in the education.

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Students who spend less time studying after school get lower math grade

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7 0
1 year ago
How many grams of NaCl are needed to make 0.800 liter of a 5.00 M solution?
ziro4ka [17]

Answer:

             0.324 g is required to make 5.00 M solution of NaCl in 0.800 L.

Given data:

                 Molarity = 5.00 M

                 Formula Mass = 58.5 g/mol

                 Required volume = 0.800 L

To Find;

               Mass in gram = ?

Solution:

              Formula for calculating mass in gram is given as,

              Mass in gram = Molarity × Formula mass × Volume required / 1000 putting values

              Mass in gram = 5.00 M × 58.5 g/mol × 0.800 L / 1000

               Mass in gram = 0.234 g


6 0
3 years ago
Can someone help me rq
Andru [333]

Answer: there

Explanation:

5 0
2 years ago
Read 2 more answers
A chemist prepares a solution of sodium chloride(NaCl) by measuring out 25.4g of sodium chloride into a 100ml volumetric flask a
labwork [276]

Answer: 4 molL-1

Explanation:

Detailed solution is shown in the image attached. The number of moles of NaCl is first obtained. Since the molarity must be in units of molL-1, the volume is divided by 1000 and the formula stated in the solution is applied and the answer is given to one significant figure.

5 0
2 years ago
Read 2 more answers
How many moles of H 2 can be formed if a 3.24 g sample of M g reacts with excess H C l ?
Ganezh [65]

Answer:

0.135 mole of H2.

Explanation:

We'll begin by calculating the number of mole in 3.24 g of Mg. This can be obtained as follow:

Mass of Mg = 3.24 g

Molar mass of Mg = 24 g/mol

Mole of Mg =?

Mole = mass /Molar mass

Mole of Mg = 3.24/24

Mole of Mg = 0.135 mole

Next, we shall write the balanced equation for the reaction. This is illustrated below:

Mg + 2HCl —> MgCl2 + H2

From the balanced equation above,

1 mole of Mg reacted to produce 1 mole of H2.

Finally, we shall determine the number of mole of H2 produced by reacting 3.24 g (i.e 0.135 mole) of Mg. This can be obtained as follow:

From the balanced equation above,

1 mole of Mg reacted to produce 1 mole of H2.

Therefore, 0.135 mole of Mg will also react to produce 0.135 mole of H2.

Thus, 0.135 mole of H2 can be obtained from the reaction.

3 0
3 years ago
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