CHEMISTRY HIGH SCHOOL

Which two substances are covalent compounds?(1) C6H12O6(s) and KI(s)
(2) C6H12O(s) and HCl(g)
(3) KI(s) and NaCl(s)
(4) NaCl(s) and HCl(g)

Answers

Answer 1

Answer:

Answer is: (2) C6H12O(s) and HCl(g).

Covalent bond is bond between nonmetals.

Carbon, hydrogen, chlorine and oxygen are nonmetals.

Hydrogen chloride (HCl) has polar covalent bond between hydrogen and chlorine.

Potassium iodide (KI) and sodium chloride (NaCl) are ionic compounds.

Ionic bond is the electrostatic attraction between oppositely charged ions (cations and anions).

Answer 2

Answer:

Among the four options, option (2) C6H12O(s) and HCl(g) represent covalent compounds as they consist only of nonmetals.

The question asks which of the given sets of substances are covalent compounds. Covalent compounds are formed when two nonmetals combine. By looking at the given options, option (2) C6H12O(s) and HCl(g) correspond to covalent compounds. C6H12O(s) is glucose, a sugar composed of carbon (C), hydrogen (H), and oxygen (O) - all nonmetals. Likewise, HCl(g) is hydrochloric acid, composed of hydrogen (H), a nonmetal, and Chlorine (Cl), another nonmetal. The other options include substances like KI and NaCl which are ionic compounds, not covalent, because they are formed from a metal and nonmetal.

Learn more about Covalent Compounds here:

brainly.com/question/10748806

#SPJ6

Related Questions

How many grams are in 11.9 moles of chromium?
Eugen Goldstein discovered in 1886 that atoms also have _________ charges.a. neutral b. positive c. negative
Corrosion is what type of chemical change? a. oxidation b. phase change c. physical change d. combustive reaction
I will give brailiest to whoever needs it!
how many moles of oxygen gas (o2) are required to react with 3.75 moles of ammonia (nh3) in the reaction 4nh3 + 5o2 → 4no + 6h2o?

David says, "Pure honey has nothing else added." Susan says ,"The honey is not really pure. It is mixture of many subsatnces . Who is right? Explain your answer.

Answers

Really, both David and Susan are right; they were using the term "pure" in different ways. David likely meant "pure honey" in the sense that the honey was not altered or had any additives. Susan used pure as in a "pure substance" in chemistry. Susan is also right, because honey is a medley of carbohydrates, proteins, amino acids, and vitamins and minerals. Chemically, honey is not a pure substance- it's a mixture.

How many muffins can the above recipe produce if 60 ml is required for each muffin?

Answers

To determine how many muffins can be produced with the given recipe, where 60 ml of batter is required for each muffin, you need to calculate the total volume of batter produced and then divide it by the volume required for each muffin.

The recipe produces a total of 2 liters of batter (2000 ml). Now, divide this total batter volume by the volume required for each muffin (60 ml per muffin):

Total muffins = Total batter volume (ml) / Volume per muffin (ml)
Total muffins = 2000 ml / 60 ml/muffin ≈ 33.33 muffins

Since you cannot have a fraction of a muffin, you can produce approximately 33 muffins with the given recipe.

Who is regarded as father of modern chemistry ?

Answers

Antoine Lavoisier is considered the father of modern chemistry. He was a French nobleman who recognized and named oxygen and isolated the major components of air.

The atomic number of an atom will always identify the amount of protons in its nucleus. If the atom is neutral, what else is identified by the atomic number? A. the number of neutrons in the atom B. the most common isotope of the atom C. the atomic mass of the atom D. the number of electrons in the atom

Answers

D.The number of electrons in an atom.In an atom,the number of protons and electrons are always the same which is indicated by the atomic number.Since we know that protons have a positive charge, and electrons have a negative charge this suggests that an atom is always neutral as +1-1=0.

Explain, in terms of electron configuration, why oxygen atoms and sulfur atoms form compounds with similar molecular structures

Answers

Oxygen atoms and sulfur atoms form compounds with similar molecular structures because if you look at these two, they both have six electrons in their valence shells. Therefore, they will generally react in much the same manner. I hope this helps you on your assignment.

Which compound has the lowest vapor pressure at 50°C?(1) ethanoic acid (3) propanone
(2) ethanol (4) water

Answers

The compound that has the lowest vapor pressure is ethanoicacid. The correct option is 1.

What is vapor pressure?

Vapor pressure is a measure of a material'stendency to change into a gaseous or vapor state, and it rises with temperature.

The boilingpoint of a liquid is the temperature at which the vapor pressure at its surface equals the pressure exerted by its surroundings.

A liquid with weak intermolecularforces evaporates faster and has a higher vapor pressure. A liquid with stronger intermolecular forces is more difficult to evaporate and thus has a lower vapor pressure.

At 50°C, ethanoloicacid has the lowest vapor pressure, which is 0.08 atm. Propanone has a vapor pressure of 0.84 atm at 50°C. At 50°C, ethanol has a vapor pressure of 0.30 atm.

Thus, the correct option is 1.

For more details regarding vapor pressure, visit:

brainly.com/question/11864750

#SPJ2

Answer : Option A) Ethanoic Acid

Explanation : Ethanoic acid has the lowest vapor pressure i.e 0.08 atm at the temperature of 50°C compared to the other given options.

The vapour pressure of propanone at 50°C is 0.84 atm

Ethanol has vapour pressure as 0.30 atm at 50°C

water has vapour pressure of 0.12 atm at 50°C.

Other Questions

A closed system initially containing 1×10^-3M H2 and 2×10^-3 at 448°C is allowed to reach equilibrium. Analysis of the equilibrium mixture show s that the concentration of HI is 1.87×10^ -3. Calculate Kc at 448°C for the reaction.

Which of these statements is true of saturated hydrocarbons?a. They contain one carbon to carbon double bond. b. They have at least one carbon to carbon double bond. c. They have one or more carbon to carbon triple bonds. d. They contain only single bonds.