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
tekilochka [14]
3 years ago
13

Draw the lewis structure for c2h2 (whose skeletal structure is hcch). draw the molecule by placing atoms on the grid and connect

ing them with bonds. include all lone pairs of electrons.
Chemistry
1 answer:
NISA [10]3 years ago
4 0
<span>The Lewis structure of a compound can be generated by trial and error. c2h2 would turn into what is known as Ethyne. Two Hydrogens are on the top and lower parts and sandwiched in btwn these two is the chained portion of carbon-carbon and the 3rd and 4th hydrogen atom. Again the sequence for the carbon is a long drawn line chaining them together and remember on both sides on the left side top and lower branches is the second sets of Hydrogen. H: _____ :H C C _____ H: :H Remember that Hydrogen (H) atoms always go on the outside of a Lewis Structure.</span>
You might be interested in
Answer has to be in two significant figures
nadezda [96]

Answer: 2.186 m

Explanation:

formula for molality: (mol solute)/(kg solvent)

Na2CO3 = solute

510g Na2CO3 * ( 1 mol / 106 g) = 4.811 mol solute

ethylene glycol = solvent

2.2 * 10^3 g * ( 1 kg / 1000 g) = 2.2 kg

(4.811/2.2) = 2.186

5 0
3 years ago
What Phase is water at 120 degrees Celsius?
Rina8888 [55]
At atmospheric pressure water boils at 100 degC.
So the water would be gas/vapor/steam.
4 0
3 years ago
Energy removal is illustrated in. A. Changing water ice to waterB. Changing water to steamC. Boiling of gasolineD. Evaporation o
Kryger [21]

Answer:

D. Evaporation of sea water

Explanation:

6 0
2 years ago
3) How Many moles are in 0.500 milligrams of the “emergency” hormone, adrenaline, whose formula
Yuki888 [10]
To determine the total number of moles that are in the hormone, you would simply convert that to grams and then use the molar mass if the formula to solve for the total number of moles in the compound.
5 0
3 years ago
Match the following:
chubhunter [2.5K]

Answer:

1. a chemical reaction in which one substance breaks up into two or more new substances:  decomposition reaction

2. a reaction in which two or more substances combine to form a new substance: synthesis reaction

3. the reaction of an acid with a base to form a salt and water: neutralization reaction.

4. chemical compound formed when the negative ions from an acid combine with the positive ions of a base: salt

5. two ionic compounds reacting in solution to form two new compounds, one of which is insoluble: double displacement reaction.

6. a reaction in which an active metal displaces a less active metal or hydrogen from a compound solution (or a nonmetal replaces a nonmetal from a compound in solution): Single replacement reaction

Explanation:

1. Decomposition is a type of chemical reaction in which one reactant gives two or more than two products.

Example: Li_2CO_3\rightarrow Li_2O+CO_2

2. Synthesis reaction is a chemical reaction in which two reactants are combining to form one product.

Example: Li_2O+CO_2\rightarrow Li_2CO_3

3 and 4. Neutralization is a chemical reaction in which an acid and a base reacts to form salt and water. Salt is formed when cations or positive ions of base combine with anions or negative ions of acid.

Here KCN is the salt formed by combination of K^+ from base and CN^- from acid.

Example:  H^++CN^-+K^++OH^-\rightarrow K^++CN^-+H_2O

5. A double displacement reaction is one in which exchange of ions take place. The salts which are soluble in water are designated by symbol (aq) and those which are insoluble in water and remain in solid form are represented by (s) after their chemical formulas.

Example: 2NaOH(aq)+(NH_4)_2SO_4(aq)\rightarrow 2NH_4OH(aq)+Na_2SO_4(aq)

6. Single replacement reaction is a chemical reaction in which more reactive element displaces the less reactive element from its salt solution.

Example: Zn+2HCl\rightarrow ZnCl_2+H_2

3 0
3 years ago
Other questions:
  • Can someone help please help me helpppppppp
    8·1 answer
  • Which one of the following compounds is an example of a covalent molecule?
    7·1 answer
  • The reaction N2 + H2 —-&gt; NH3, if 2.00 grams of hydrogen reacts: how many grams of ammonia are
    7·1 answer
  • 1. 3A + 2B + C + 2D + 20 kJ
    14·1 answer
  • For the process described, compare ΔH with ΔE of the system.
    10·1 answer
  • When of a certain molecular compound X are dissolved in of dibenzyl ether , the freezing point of the solution is measured to be
    13·1 answer
  • What is the net ionic equation for the reaction that is represented by the following total ionic equation?
    9·2 answers
  • What colour is Calcium Hydroxide solution​
    7·1 answer
  • A solution has a hydrogen ion (or hydronium ion) concentration of 3.43 * 10-5
    8·1 answer
  • There are exactly 1000 m in 1 km. how many significant figures does this number have?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!