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MrRissso [65]
3 years ago
7

Scientists use _____ as chemical symbols. dots letters shapes lines

Chemistry
2 answers:
defon3 years ago
6 0

Answer:

Letters

Explanation:

Crank3 years ago
5 0

Answer:

Letters

Explanation:

Chemical symbols are used to standardize the 'language of chemistry' and to identify elements and atoms in a chemical formula easily. Chemical symbols consist of one or two letters, most often derived from the name of the element.

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Explanation:

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2 years ago
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I need some help with with question:
defon

Answer:

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C1 is 2.0mol/l

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Explanation:

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An iron fence is left unpainted, and it reacts with the oxygen in the air, forming rust. The formation of rust is an oxidation-r
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Urea (CH4N2O) is a common fertilizer that can be synthesized by the reaction of ammonia (NH3) with carbon dioxide as follows:
Nezavi [6.7K]

The theoretical yield of urea : = 227.4 kg

<h3>Further explanation</h3>

Given

Reaction

2NH3(aq)+CO2(aq)→CH4N2O(aq)+H2O(l)

128.9 kg of ammonia

211.4 kg of carbon dioxide

166.3 kg of urea.

Required

The theoretical yield of urea

Solution

mol Ammonia (MW=17 g/mol)

=128.9 : 17

= 7.58 kmol

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