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pishuonlain [190]
3 years ago
5

Name two elements in which the last electrons to be added are placed into s subshells

Chemistry
1 answer:
LekaFEV [45]3 years ago
6 0
<span>Lithium and Sodium both have their last elections added to s subshells. All alkali and alkali earth metals have their last electrons placed in s subshells.</span>
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Help please I don't get this question
fredd [130]

Answer:

Explanation:

combustion

7 0
4 years ago
Identify this reaction <br><br> HBr+ Al(OH)3 —-&gt; H2O + AlBr3
Vikki [24]
<h2><em><u>Answer</u></em></h2>

Neutralization reaction

5 0
3 years ago
Use the following equation to answer questions 2 and 3. (Use the mole ratio for these problems only!)
MAVERICK [17]

Answer:

5.34 moles of NO_2 are required to produce 3.56 mol of HNO_3.

0.83 moles of water react with 2.5 moles of NO_2.

Explanation:

i) 3NO_2+H_2O\rightarrow 2HNO_3+NO

Moles of HNO_3 we want to produce = 3.56 moles

According to reaction, 2 moles of HNO_3 are obtained from 3 moles of NO_2

Then 3.56 moles of HNO_3 will be obtained from :

\frac{3}{2}\times 3.56 mol=5.34 mol of HNO_3

5.34 moles of NO_2 are required to produce 3.56 mol of HNO_3.

ii)

Moles of NO_2 = 2.5 moles

According to reaction,3 moles of NO_2 reacts with 1 mole of H_2O,then 2.5 moles of NO_2 will react with :

\frac{1}{3}\times 2.5 mol=0.83 mol of H_2O

0.83 moles of water react with 2.5 moles of NO_2.

4 0
3 years ago
While traveling, an airplane passenger placed a bag of potato chips in his checked luggage. When he opened the luggage, the bag
bulgar [2K]

Answer:

D) Boyle's Law

Explanation:

Boyle's law states that:

"For a fixed mass of an ideal gas kept at constant temperature, the pressure of the gas is inversely proportional to its volume".

Mathematically, it can be written as

p \propto \frac{1}{V}

where

p is the pressure of the gas

V is its volume

This can also be written as

V\propto \frac{1}{p}

In this problem, we have a bag of potato chip which is placed on an airplane. When the plane reaches its cruising altitude, the pressure in the cabin is much lower than the pressure at sea level. As a result, also the pressure of the air inside the bag will also be lower (because the internal pressure tries to balance the external pressure).

According to Boyle's law, however, this means that the volume of the bag will increase: and at some point, the volume of the air inside the bag will be too big for the bag to "resist", and the bag will eventually explode.

7 0
3 years ago
Blood alcohol concentration (bac) is defined as the ration of alcohol in the system to?
goldfiish [28.3K]

Blood Alcohol Concentration (BAC) is defined as the ratio of alcohol in the system to Blood in the system.

Blood/Breath Alcohol concentration (BAC) is the quantity of alcohol within the bloodstream or on one's breath. BAC is expressed because of the weight of ethanol, in grams, in 100 milliliters of blood, or 210 liters of breath. BAC can be measured with the aid of breath, blood, or urine exams.

Blood alcohol content material shows the percentage of alcohol that is in a person's bloodstream. BAC is crucial to prosecutors because they accept it as true with it displays how tons an individual is impaired via alcohol.

Human beings making their own alcoholic beverages regularly calculate the percentage of alcohol by way of extent by way of measuring their relative density with a hydrometer or their sugar content material with a refractometer.

Learn more about alcohol here: brainly.com/question/24129981

#SPJ4

5 0
2 years ago
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