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Vinil7 [7]
3 years ago
7

How many atoms of each element are in this chemical formula?

Chemistry
2 answers:
BartSMP [9]3 years ago
7 0

Answer:

B. 2 nitrogen, 4 hydrogen, and 3 oxygen

xxMikexx [17]3 years ago
3 0

Answer:

c. 5 nitrogen, 1 hydrogen, and 1 oxygen

Explanation:

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Which element is smaller is atomic size?
Ganezh [65]

Answer:

Scandium is the smallest element of the four

Explanation:

Vanadium = 50.9415 u

Titanium = 47.867 u

Scandium = 44.955912 u

Chromium = 51.9961 u

3 0
3 years ago
A student is studying the rate of the following reaction: C2H4O NaOH --> H20 NaC2H3O Knowing that this is an exothermic react
emmasim [6.3K]

Answer:

HCl is not a catalyst because these are not used up during the chemical reactions.

Explanation:

Hello there!

In this case, according to the performed experiments, it is possible for us to realize that HCl cannot be a catalyst for this reaction because it is used up during the reaction. This is explained by the fact that catalyst are able to return to the original form once the reaction has gone to completion; this is the example of palladium in the hydrogenation or dehydrogenation of hydrocarbons depending on the case. Moreover, we know that the catalysts increase the reaction rate because they decrease the activation energy of the reaction and therefore the student observed such increase.

Best regards!

8 0
3 years ago
How many grams of h2o are needed to produce 45g of NO
schepotkina [342]

We need (i) the stoichiometric equation, and (ii) the equivalent mass of dihydrogen.
Explanation:
1
2
N
2
(
g
)
+
3
2
H
2
(
g
)
→
N
H
3
(
g
)
11.27

g
of ammonia represents
11.27
⋅
g
17.03
⋅
g
⋅
m
o
l
−
1

=

?
?

m
o
l
.
Whatever this molar quantity is, it is clear from the stoichiometry of the reaction that 3/2 equiv of dihydrogen gas were required. How much dinitrogen gas was required?
4 0
2 years ago
Name an insoluble cobalt salt​
amm1812

Cobalt sulphate is the usual source of water-soluble cobalt since it is the most economical salt and shows less tendency to deliquesce or dehydrate

6 0
2 years ago
Number 6<br><br><br><br> Yususueudidididifididi
Furkat [3]
The answer is predict, because it fits, and because someone can predict the outcome of something.
6 0
3 years ago
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