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Lady bird [3.3K]
3 years ago
9

Which of these is a compound? carbon dioxide potassium salt water salad

Chemistry
2 answers:
Snowcat [4.5K]3 years ago
5 0
Pretty sure it’s potassium
xz_007 [3.2K]3 years ago
5 0
salt water because it’s Salt + water
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Determine the empirical formula for a compound that is 36.86% n and 63.14% o by mass. determine the empirical formula for a comp
nexus9112 [7]
<span>Mass of nitrogen = 14.0067
</span> Mass of oxygen = 15.9994
In this compound nitrogen = 36.86 / 14.0067 = 2.63 
<span>And oxygen = 63.14 / 15.9994 = 3.95 <span>
now we have: N----- 2.63 and O----3.95 
by dividing both with the smallest number we get
</span></span> <span>N-------2.63/2.63 = 1<span>
<span>O-------3.95/2.63 = 1.5
To get whole numbers we multiply both by 2
</span></span></span> N= 1 x 2 = 2 And O = 1.5 x 2= 3
<span>So, the empirical formula is N</span>₂O₃.
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3 years ago
1. Write the name of any four chemical preservatives mixed with readymade<br>Food.​
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Answer:

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2 years ago
For the oxidation of ammonia
OverLord2011 [107]

The answer is 0.405 M/s

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- d[O2]/dt = 3/2 d[N2]/dt

- d[O2]/dt = 3/2 × 0.27

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2 years ago
The half-life of tritium, or hydrogen-3, is 12.32 years. After about 37 years, how much of a sample of tritium will remain uncha
Kipish [7]
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8 0
3 years ago
Read 2 more answers
Calculate the number of moles in the following: 2.8 X 10^24 atoms of Cl2
vova2212 [387]

Answer:

<h3>The answer is 4.65 moles</h3>

Explanation:

To find the number of moles given it's number of entities we use the formula

n =  \frac{N}{L} \\

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question

N = 2.8 × 10²⁴ atoms of Cl2

So we have

n =  \frac{2.8 \times  {10}^{24} }{6.02 \times  {10}^{23}  }  \\  = 4.65116279069...

We have the final answer as

<h3>4.65 moles</h3>

Hope this helps you

7 0
3 years ago
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