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3241004551 [841]
3 years ago
13

Chemical reactions H2SO4 +NaHCO3=​

Chemistry
2 answers:
Ksju [112]3 years ago
7 0

Answer:

Below.

Explanation:

The balanced equation is:

H2SO4 + 2NaHCO3  =​  Na2SO4 + 2H2O + 2CO2

Solnce55 [7]3 years ago
4 0

Answer:

2NaHCO3 + H2SO4 -----> Na2SO4 + 2H2O + 2CO2.

Explanation:

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You need to determine the specific gravity of a sample. After putting the sample on a lab scale, you know it has a mass of 85 gr
BlackZzzverrR [31]

Answer:

Specific gravity of the sample = 8.947

Explanation:

Specific gravity of a substance is defined as the density of that substance divided by the density of water.

Density of water = 1000g/l

Density of substance = mass/volume

= 85/9.5 x 10^-3

= 8947.37 g/l

SG = 8947.37/1000

= 8.947

3 0
3 years ago
Which of the following decomposition reactions is/are correct?
Valentin [98]
<span>The generalized reaction for chemical decomposition is: AB → A + B

NaOH is sodium hydroxide. When sodium and water is combined it makes sodium hydroxide and hydrogen

When sodium hydroxide decomposes under thermal decomposition, it breaks down into sodium oxide and water.

Thus, </span><span>C) 2NaOH Na2O + H2O</span>
4 0
3 years ago
Which of the following statements is true? Choose one: A. Bronze was used as early as 4000 B.C.E. to replace less-desirable iron
Verizon [17]

Answer:

B.Bronze is harder than copper, so it retains a cutting edge sharper than that of copper.

Explanation:

The importance of bronze in the history of the human kind can not be only measured in the durability but the help that it provided to our ancestors, the things they were allowed to do once they dicovered how to mold it, and the tools that they produced and made many every day tasks easier for them and the ability of bronze to mantain the cutting edge longer than copper was one of the main reasons why it took its places in the fabrication of many tools.

4 0
3 years ago
What are the trends and exceptions to the trends in electron affinity
slega [8]

Answer:

Explanation:

Electron affinity is the energy released in adding an electron to a neutral atom in the gas phase.

It is a measure of the readiness of an atom to gain an electron. This property is very peculiar to non-metals. The higher the value, the greater the tendency to accept electrons.

Across a period electron affinity increases due to the increasing nuclear charge not being compensated for.

Down a group, electron affinity decreases  due to the low nuclear charge and the large atomic radii.

The exception to this rule is the stability of half-filled sublevels. For example, nitrogen has a configuration of 2,5 with sublevel notation of 1s²2s²2p³.

The p-sublevel has a degeneracy of three and the three electrons goes in singly. This makes the configuration stable.

We expect such an atom to have a higher electron affinity but its configuration is stable and carbon would have a higher affinity than it across the same period.

Half filled sublevels are exception to the trend of electron affinity.

5 0
3 years ago
Sara is making an omelet. She cracks open 6 eggs and places them in a bowl. She adds some milk, salt, and pepper to the eggs and
Sunny_sXe [5.5K]

Answer:  Well then I guess Sara is having a good breakfast

Explanation: what was the point of this question?

6 0
3 years ago
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