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4 years ago

8

How many hydrogen atoms are there in 7.30 moles of ethanol

1 answer:

saveliy_v [14]4 years ago

6 0

There are 6 hydrogen atoms in every molecule of ethanol

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Glass of orange juice contain 0.90 dL of juice. How many milliliters of orange juice is that?

dlinn [17]

.90 dL is 90 mL because 1 dL is 100 mL

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3 years ago

What two elements are present in the compounds in the last two rows of table 4

castortr0y [4]

Answer:could u expand on the question

Explanation:

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3 years ago

Balance <br> Na2O+H2O → NaOH

AleksAgata [21]

Answer:
Na2O+H2O=2NaOH
Step by step exp.
Given:
Equation Na2O+H2O=NaOH
To find: Balance the equation
Solution:
Taking LHS of the equation
LHS=Na2O+H2O
There is 2 sodium, 2 oxygen,& 2 hydrogen
To balance the equation we have equal number of atom so we multply 2 to the RHS=2NaOH
There fore the equation form is
Na2O+H2O=2NaOH

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3 years ago

The gasses in a hair spray can are at temperature 300k and a pressure of 30 atm, it

Sergeeva-Olga [200]

Answer:

900 K

Explanation:

Recall the ideal gas law:

$\displaystyle PV = nRT$

Because only pressure and temperature is changing, we can rearrange the equation as follows:
$\displaystyle \frac{P}{T} = \frac{nR}{V}$

The right-hand side stays constant. Therefore:

$\displaystyle \frac{P_1}{T_1} = \frac{P_2}{T_2}$

The can explodes at a pressure of 90 atm. The current temperature and pressure is 300 K and 30 atm, respectively.

Substitute and solve for <em>T</em>₂:

$\displaystyle \begin{aligned} \frac{(30\text{ atm})}{(300\text{ K})} & = \frac{(90\text{ atm})}{T_2} \\ \\ T_2 & = 900\text{ K}\end{aligned}$

Hence, the temperature must be reach 900 K.

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3 years ago

Gekata [30.6K]

Answer:

mineral

Explanation:

6 0

3 years ago

Read 2 more answers