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MrRa [10]
3 years ago
6

What are the coefficients that would correctly balanced reaction

Chemistry
2 answers:
beks73 [17]3 years ago
8 0

Answer: As a consequence, chemical equations must be balanced, meaning that the number and kinds of atoms must be the same on both sides of the reaction arrow. The numbers placed in front of formulas to balance equations are called coefficients, and they multiply all the atoms in a formula.

san4es73 [151]3 years ago
4 0
Li2CO3 + Ca3(PO4)2 = Li3PO4 + CaCO3
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The Lewis dot notation for two atoms is shown.
NISA [10]
To help, I drew a diagram. This represents an ionic bond between Na and Cl. Na is giving his single electron to Cl, which is indicated by the arrow, to make Cl full with 8 electrons.

7 0
3 years ago
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A sample of 5.00 mol of gas in a 10.00 L container is at 45.0 °C. What is the pressure of the gas?
katrin2010 [14]

Answer:

The pressure of the gas is 13, 04 atm.

Explanation:

We use deal gas formula. First, we convert the unit of temperature in Celsius into Kelvin. We use the constant R= 0,082 l atm /K mol.Then, we solve P (pressure).

0°C=273 K   45°C= 273 + 45= 318 K

PV=nRT   -----> P= (nRT)/V

P= (5 mol x 0,082 l atm /K mol x 318 K)/ 10 L

<em>P= 13,038 atm</em>

6 0
3 years ago
What is the molecular formula of an empirical N2H3 if n=2? <br><br>SHOW WORK!
aliya0001 [1]

A compound's empirical formula tells you what the smallest whole number ratio between the atoms that make up that compound is.

I think of the empirical formula as a building block for molecules. A compound's molecular formula will depend on how many building blocks are needed to build a molecule of a given substance.

In your example, you know that the empirical formula of the compound is

NO

2

.

This tells you that the minimum ratio between nitrogen atoms and oxygen atoms is

1

:

2

. In other words, the molecular formula will be a multiple of this building block.

molecular formula

=

empirical formula

×

n

, where

n

- the number of building blocks needed to build the molecular formula.

You also know that the molar mass of your compound is

92 g/mol

.

This means that the molar mass of all the atoms that make up that molecule must add up to give

92 g/mol

.

So, how would you determine how many building blocks you need? Well, start by figuring out the molar mass of one building block, i.e. the molar mass of the empirical formula.

Since it contains one nitrogen atom and two oxygen atoms, you will get

1

×

14.0067 g/mol

+

2

×

15.9994 g/mol

=

46.0055 g/mol

So, if one building block has a molar mass of

46.0055 g/mol

, how many would you need to get the molecule?

46.0055 g/mol

⋅

n

=

92 g/mol

n

=

92

g/mol

46.0055

g/mol

=

1.99976

≈

2

This means that the compound's molecular formula, which lists all the atoms that make up a molecule, will be

(

NO

2

)

×

2

=

N

2

O

4

→

dinitrogen tetroxide

7 0
2 years ago
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______________________ produce evidence that helps to answer important questions or could also lead to new questions. A.investig
siniylev [52]

Answer:

B

Explanation:

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3 years ago
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Which of the following is the poorest conductor electricity
mojhsa [17]

Answer:

Fluorine

Explanation:

It is a non-metal does not conduct electricity

5 0
2 years ago
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