1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Igoryamba
4 years ago
7

CaC2 is prepared at high temperature from limestone and charcoal. The first reaction in this process is roasting calcium carbona

te at 800 oC to give calcium oxide and a gaseous product. The second involves the metal oxide produced (in the first) with carbon at 2000 oC to give the desired product and carbon monoxide
Write the two balanced chemical equations for the reactions:

Eqn. 1

Eqn. 2


Because of the energy costs of these processes, commercial acetylene production using CaC2 is more costly than obtaining it from the decomposition reaction of natural gas (methane) under controlled conditions. However, CaC2 is important in the manufacture of plastics. At elevated temperatures (1000 oC) it reacts directly with nitrogen gas to give a product called calcium cyanamide and carbon.
Write the balanced chemical equation:

The compound is one of the starting materials in a four step industrial synthesis of Melamine polymers, which are used to make light weight, heat resistant tableware.
Write chemical equations in the four step reactions towards the manufacture of Melamine polymers

Chemistry
1 answer:
Alenkasestr [34]4 years ago
6 0

Answer:

Equation 1: CaCO3(s) = CaO(s) + CO2(g)

Equation 2: CaO(s) + 3C(s) = CaC2(s) + CO(g)

Overall reaction equation: CaCO3 (s) + 3C(s) = CaC2(s) + CO2(g) + CO(g)

Reaction of calcium cyanide and carbon: CaC2(s) + N2(g) = CaCN2(s) + C(s) (1000oC)

Explanation: Find the industrial preparation of melamine in the attachment.

You might be interested in
Which of the following is the correctly balanced chemical equation for the reaction of Ca(OH)2 and HNO3?
sattari [20]

Explanation:

The reaction between calcium hydroxide and nitric acid is as follows.

  Ca(OH)_{2} + HNO_{3} \rightarrow Ca(NO_{3})_{2} + H_{2}O

Number of reactant atoms are as follows.

  • Ca = 1
  • O = 4
  • H = 3
  • N = 1

Number of product atoms are as follows.

  • Ca = 1
  • O = 4
  • H = 2
  • N = 3

To balance the given chemical equation, multiply HNO_{3} by 2 on reactant side and multiply H_{2}O by 2 on the product side.

Therefore, the balanced chemical equation will be as follows.

    Ca(OH)_{2} + 2HNO_{3} \rightarrow Ca(NO_{3})_{2} + 2H_{2}O

4 0
4 years ago
Hydrogen ion reacts with zinc to produce_____ gas?
WINSTONCH [101]

▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓

Hydrogen ion reacts with zinc to produce\:\pmb{\underline{\red{\sf{Zinc \:hydride    }}}}\:gas

▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓

6 0
3 years ago
Which of the following solutions would have the lowest freezing point?
Paul [167]

B. 3.0 mol·L⁻¹ NaCl

Explanation:

Freezing point is a colligative property: it depends only on the number of particles in solution.

The for freezing point depression ΔT_f is

ΔT_f = iK_fb

where

i = the number of moles of particles available from one mole of solute

K_f = the molal freezing point depression constant

b = the molal concentration of the solute

All your solutions are aqueous NaCl. They differ only in their concentrations.

Thus, the most concentrated solution will have the greatest freezing point depression and the lowest freezing point.

Read more on Brainly.com - brainly.com/question/11516173#readmore

4 0
3 years ago
Helppppppp! why should i use spr??
Viktor [21]

SPR can be used in order to do real time monitoring and to evaluate the advancement of compounds.

<h3>Why should we use SPR?</h3>

SPR provide information to evaluate whether or not compounds should advance to the next stage of investigation. It also provides real-time monitoring.

So we can conclude that SPR can be used in order to do real time monitoring and to evaluate the advancement of compounds.

Learn more about monitoring here: brainly.com/question/13163394

#SPJ1

6 0
2 years ago
What is the most precise measurement this beaker can give?
allochka39001 [22]
<span>a.the nearest 1 ml

1 mL is much more precise than 100 mL because 1 mL is a very small and precise unit of measurement</span>
8 0
4 years ago
Other questions:
  • The most negative electron affinity is most likely associated with which type of atoms?
    14·1 answer
  • Which substance found in fossil fuels can form a harmful acid when the fuel is burned?
    13·2 answers
  • What is pH?
    8·1 answer
  • There are two types of circuits we can make and they are ...
    8·1 answer
  • Base changes phenolphthalein to pink it is true or false​
    9·2 answers
  • Liquid nitrogen becomes a gas when it is poured out of its container. The nitrogen is
    8·2 answers
  • Someone help me please i’ll give brainly
    5·2 answers
  • Which substance can not be broken down by a chemical change?
    7·2 answers
  • what is the suggested weight of the sample that should be disssolved in the beaker before it is transferred to the NMR tube
    8·1 answer
  • A first-order reaction has a half-life of 20.0 minutes. Starting with 1.00 x 10^20 molecules
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!