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mihalych1998 [28]
2 years ago
11

Identify the number of elements and the number of atoms present in the chemical formula.

Chemistry
1 answer:
tensa zangetsu [6.8K]2 years ago
7 0
How do you know how many atoms are in a chemical formula?

~~~~~~~~~~~
in the formula. It also represents the number of molecules of that compound. has 4 sodium atoms, 2 sulphur atoms, and 8 oxygen atoms. When you count atoms, remember to multiply the coefficient number and the subscript number to find the number of atoms of that element.
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A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains 3.30kg of water at 23.8°C. Dur
Brums [2.3K]

Answer:

T_2= 31.9\°C

Explanation:

Hello there!

In this case, it is possible to propose an energy balance in order to illustrate how the heat released by the reaction is absorbed by the water:

-Q_{rxn}=Q_{water}

Thus, since the heat released by the reaction is -112 kJ (-112000 J), it is possible to define the hear absorbed by the water in terms of mass, specific heat and temperature change:

-(-112000J)=m_{water}C_{water}(T_2-T_1)

In such a way, it is possible to define the final temperature as shown below:

T_2=23.8\°C+\frac{112000J}{3300g*4.18\frac{J}{g\°C} }\\\\T_2= 31.9\°C

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4 0
2 years ago
Which of the following views of weather is an example of systems thinking
Luda [366]

Answer:

Explanation:

Climate

3 0
2 years ago
What information does Jaime need to evaluate the accuracy of his calculation?
Effectus [21]

Answer:

well we can't awnser this we don't have the full information srry♥️✨

4 0
3 years ago
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What is the term used to describe why urban areas are warmer than surrounding rural areas?
4vir4ik [10]

Answer:

urban heat island

Explanation:

occurs when a city experiences much warmer temperatures than nearby rural areas.

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5 0
1 year ago
How many moles are in 68.5 liters of oxygen gas at STP?
givi [52]
Since we know that one mole of any gas at STP is equal to 22.4 L we can multiply 135L by the following conversion: 1 mole/22.4L. When you set up the problem it looks like this…: (135L)x 1 mole/22.4L =6.03 moles of oxygen gas The liters cancel out and you are left with moles as your units.


So your answer is then 3.058
3 0
2 years ago
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