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3 years ago

The small 2 next to Nitrogen is called the ____.

Chemistry

2 answers:

Nimfa-mama [501]3 years ago

8 0

Answer:

atom

Explanation:

Charra [1.4K]3 years ago

6 0

Answer:

The small 2 next to Nitrogen is called the subscript.

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Can rotation and revolution occur at the same time? Explain.

Ipatiy [6.2K]

Answer:

yes

Explanation:

Revolution is the movement of an object around another object. So, Earth revolves around the Sun, and the Moon revolves around Earth. At the same time, Earth and the Moon are also rotating. Earth's rate of revolution is about 365 days (one year), and its rate of rotation is about 24 hours (one day).

5 0

3 years ago

Convert 3 moles of h2o into grams

lilavasa [31]

To convert 3 mol H2O to grams, just multiply by the molar mass of H2O.

<span>3 mol H2O * 18 g H2O / 1 mol H2O = 54 g H2O

Hope this helped.</span>

4 0

3 years ago

Which of the following can’t be separated into simpler substances or converted into another substance by chemical process?

timofeeve [1]

Your answer would be an Element can't be separated into simpler substances or converted into another substance by chemical process.

Hope that helps!!!

8 0

3 years ago

Gaseous ethane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water . Suppose 2.7 g of ethane is m

Bond [772]

Answer:

$m_{H_2O}=4.86gH_2O$

Explanation:

Hello,

In this case, the described chemical reaction is:

$C_2H_6+\frac{7}{2} O_2\rightarrow 2CO_2+3H_2O$

Thus, for the given reacting masses, we must identify the limiting reactant for us to determine the maximum mass of water that could be produced, therefore, we proceed to compute the available moles of ethane:

$n_{C_2H_6}=2.7gC_2H_6*\frac{1molC_2H_6}{30gC_2H_6} =0.09molC_2H_6$

Next, we compute the moles of ethane consumed by 13.0 grams of oxygen by using the 1:7/2 molar ratio between them:

$n_{C_2H_6}^{consumed\ by \ O_2}=13.0gO_2*\frac{1molO_2}{32gO_2}*\frac{1molC_2H_6}{\frac{7}{2} molO_2}=0.116molC_2H_6$

Thus, we notice there are less available moles of ethane, for that reason, it is the limiting reactant, thereby, the maximum amount of water is computed by considering the 1:3 molar ratio between ethane and water:

$m_{H_2O}=0.09molC_2H_6*\frac{3molH_2O}{1molC_2H_6} *\frac{18gH_2O}{1molH_2O} \\\\m_{H_2O}=4.86gH_2O$

Best regards.

3 0

3 years ago

What is an isotope? atoms of the same element with different number of

geniusboy [140]

Answer:

The same element that contain equal number if protons but different number of neurons in their nuclei and hence differ in relative atomic mass

7 0

3 years ago

Read 2 more answers