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
Mademuasel [1]
3 years ago
14

The properties of several unknown solids were measured. Solid Melting point Other properties A >1000 °C does not conduct elec

tricity B 850 °C conducts electricity in the liquid state, but not in the solid state C 750 °C conducts electricity in the solid state D 150 °C does not conduct electricity Classify the solids as ionic, molecular, metallic, or covalent. Note that covalent compounds are also known as covalent network solids or macromolecular solids.
Chemistry
2 answers:
zhenek [66]3 years ago
6 0

Explanation:

A solid compound formed by chemical reaction of a positively charged cation with a negatively charged anion is known as ionic solid. Ionic bonds exist between an ionic solid.

When dissolved in water, ionic solids dissociate into ions. Hence, they are able to conduct electricity as electricity is the flow of ions or electrons.

A molecular solid is a solid in which molecules are held together by Vander waal forces. They do not conduct electricity as there is no unbalanced charge on the compound.

Solids in which atoms of metal are held together by metallic bonds are known as metallic solids. These conduct electricity when present in solid state for bond overlap.

A covalent solid is a substance in which atoms are held together by covalent bonds. They do not conduct electricity and have high melting point.

Thus, we can conclude the following.

  • A >1000 °C does not conduct electricity : Covalent solids
  • B 850 °C conducts electricity in the liquid state, but not in the solid state : Ionic solid
  • C 750 °C conducts electricity in the solid state : Metallic solid
  • D 150 °C does not conduct electricity : Molecular solid

 

hammer [34]3 years ago
3 0

The answer is :

  • Compound A > 1000 ° C does not conduct electricity and is in the form of covalent solids
  • Compound B = 850 ° C conducts electricity in liquid conditions, but not in solid conditions and the form of ionic solids
  • Compound C = 750 ° C conducts electricity in solid conditions and the form of metal solids
  • Compound D = 150 ° C does not conduct electricity and is in the form of a solid molecule
<h2>Further Explanation </h2>

Element is a single substance or pure substance that cannot be broken down into simpler substances through chemical reactions. Some chemical scientists have found more than 100 kinds of elements that exist on earth. Based on the periodic system, the elements are grouped into three types, namely metal, semilogene, and non-metal elements.

Chemical compounds are pure chemicals that consist of two or several elements that can be broken down into its constituent elements by chemical reactions. For example, dihydrogen monoxide (water, H2O) is a compound consisting of two hydrogen atoms for each oxygen atom. Generally, this comparison must be fixed because of its physical nature, not a comparison made by humans. Therefore, materials such as brass, YBCO superconductors, "aluminum gallium arsenide" semiconductors, or chocolate are considered mixtures or alloys, not compounds. The distinguishing characteristic of compounds is the presence of chemical formulas. The chemical formula provides a ratio of atoms in a substance, and the number of atoms in a single molecule (therefore the chemical formula of ethene is C2H4 and not CH2. The chemical formula does not specify whether the compound is composed of molecules; for example, sodium chloride (table salt, NaCl) is a compound ionic.

Type of compound

  1. acid
  2. bases
  3. ionic compound
  4. salt
  5. the oxide
  6. organic compound

Learn more

definition of Chemical compounds brainly.com/question/13033881

definition of Elemen brainly.com/question/13033881

Type of compound brainly.com/question/13033881

Details

Grade: College

Subject: Chemistry

keywords: Chemical compounds

You might be interested in
If the pH of a solution is 6.96, then the solution is a
Vladimir79 [104]

Answer:

acid

Explanation:

solution with pH less than 7 is acid

those with more that 7 is base

those equal to 7  is neutral

3 0
3 years ago
How many grams N2F4 can be produced from 225 g F,?​
zavuch27 [327]

Answer:

308 g

Explanation:

Data given:

mass of Fluorine (F₂) = 225 g

amount of N₂F₄ = ?

Solution:

First we look to the reaction in which Fluorine react with Nitrogen and make N₂F₄

Reaction:

          2F₂ + N₂ -----------> N₂F₄

Now look at the reaction for mole ratio

          2F₂     +    N₂   ----------->  N₂F₄

        2 mole                              1 mole

So it is 2:1 mole ratio of Fluorine to N₂F₄

As we Know

molar mass of F₂ = 2(19) = 38 g/mol

molar mass of N₂F₄ = 2(14) + 4(19) =

molar mass of N₂F₄ = 28 + 76 =104 g/mol

Now convert moles to gram

                 2F₂          +       N₂   ----------->  N₂F₄

        2 mole (38 g/mol)                        1 mole (104 g/mol)

                 76 g                                           104 g

So,

we come to know that 76 g of fluorine gives 104 g of N₂F₄ then how many grams of N₂F₄ will be produce by 225 grams of fluorine.

Apply unity formula

                  76 g of F₂ ≅ 104 g of N₂F₄

                   225 g of F₂ ≅ X of N₂F₄

Do cross multiplication

                  X of N₂F₄ = 104 g x 225 g / 76 g

                  X of N₂F₄ = 308 g

So,

308 g N₂F₄ can be produced from 225 g F₂

7 0
3 years ago
A sample of no2 occupies 16,500 ml at stp. How many no2 molecules are in the sample?.
svet-max [94.6K]
here it is! mL to Liters to moles to molecules

6 0
2 years ago
An atom of nitrogen has seven electrons. Which diagram correctly respresents the arrangement of these electrons?
Studentka2010 [4]

Answer:

Its B I just took the test and got a 100%

Explanation:

4 0
3 years ago
The liter is a measurement of which of the following qualities volume,teampature,mass,density
Doss [256]

Answer:

Volume

Explanation:

Volume is the quantity of three-dimensional space enclosed by a closed surface, for example, the space that a substance (solid, liquid, gas, or plasma) or 3D shape occupies or contains.[1] Volume is often quantified numerically using the SI derived unit, the cubic metre. The volume of a container is generally understood to be the capacity of the container; i.e., the amount of fluid (gas or liquid) that the container could hold, rather than the amount of space the container itself displaces. Three dimensional mathematical shapes are also assigned volumes. Volumes of some simple shapes, such as regular, straight-edged, and circular shapes can be easily calculated using arithmetic formulas. Volumes of complicated shapes can be calculated with integral calculus if a formula exists for the shape's boundary. One-dimensional figures (such as lines) and two-dimensional shapes (such as squares) are assigned zero volume in the three-dimensional space.

The volume of a solid (whether regularly or irregularly shaped) can be determined by fluid displacement. Displacement of liquid can also be used to determine the volume of a gas. The combined volume of two substances is usually greater than the volume of just one of the substances. However, sometimes one substance dissolves in the other and in such cases the combined volume is not additive.[2]

In differential geometry, volume is expressed by means of the volume form, and is an important global Riemannian invariant. In thermodynamics, volume is a fundamental parameter, and is a conjugate variable to pressure.

7 0
3 years ago
Other questions:
  • Cyclonic low pressure storms of high winds that develop over water are called
    10·1 answer
  • What travels through a food chain or web.
    15·2 answers
  • A cube of copper has a temperature of 5°C. The cube is placed in a closed container whose internal temperature is 85°C. What wil
    14·2 answers
  • A student is using a coffee-cup calorimeter to determine the enthalpy change of the endothermic reaction of two aqueous solution
    13·1 answer
  • Which description refers to fog
    5·1 answer
  • A student collects 350 mL of a vapor at a temperature of 67°C. The atmospheric pressure at the time of collection is 0.900 atm.
    8·1 answer
  • 15.0 mL of 0.050 M Ba(NO3)2 M and 100.0 mL of 0.10 M KIO3 are added together in a 250 mL erlenmeyer flask. In this problem, igno
    7·1 answer
  • You wear a seat belt when you ride in a car because of Newton's:
    8·2 answers
  • Help plz I need it as soon as possible
    15·1 answer
  • Using the periodic table to locate each element, write the electron configuration of(a) Ru;
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!