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
Allisa [31]
3 years ago
10

Identify items in your life that are made of each type of element: metal, nonmetal, and metalloid. For each item, explain why th

e properties of that type of element are necessary for the function of that item.
Chemistry
1 answer:
EleoNora [17]3 years ago
8 0
An everyday item that is made of a metal would be simple utensils like a fork. Forks are made of stainless steel which is made of multiple types of metals. A property of metals is that they are generally solid at room temperature and they are hard. This is a necessary property as if the fork was soft, or not even solid, it would be almost impossible to use.

Nonmetals are species that gain electrons and form ions, and are often electronegative elements. A common nonmetal is oxygen or nitrogen gas that makes up a large percentage of the atmosphere. Nonmetals are generally nonconductors, which means they do not conduct heat or electricity well. This is a necessary property because if the air was a good conductor, all electricity would be unstable and many electronics would simply short circuit or catch on fire.

Metalloids are materials that fall between metals and nonmetals in terms of properties. A common metalloid would be boron which can be found in various types of glass. In this form it has the solid property of a metal and the nonconducting property of a nonmetal. If glass were not solid, it would not be able to hold its form, and if glass were a good conductor of heat or electricity, it would make glass materials more dangerous to work with.
You might be interested in
What do navigators need to consider when plotting a course?
Vaselesa [24]
1.) scale of the chart
2.) Notes of the chart
3.) chart symbols
4.) chart corrections
5.) GPS positions
6.) radar fixes

7.) Visual fixtures and position circle and position line
8 0
3 years ago
Use the pull-down boxes to specify states such as (aq) or (s). If a box is not needed leave it blank. If no reaction occurs leav
babunello [35]

Answer:

H+  +  OH−  --> H2O

Explanation:

Hydrochloric acid is represented by the chemical formular; HCl. This is an ionic substance so in water it breaks apart into hydrohrn ions; H+ and chloride ions; Cl−. It is a strong acid, hence it completely dissociates.

Potassium Hydroxide is also an ionic substance it also breaks apart in water into potassium ions; K+ and hydroxide ions; OH−. It is a strong base, hence it completely dissociates.

The complete ionic equation for the reaction is given as;

H+  +  Cl−  +  K+  +  OH−  -->  K+  +  Cl−  +  H2O

The Hydrogen ion and the Hydroxide ions combine to form water.

The net ionic equation is given as;

H+  +  OH−  --> H2O

Cl- and K+ ions were cancelled out because they do not undergo any changes therefore are not part of the net ionic equation. They are referred to as spectator ions.

5 0
3 years ago
How many molecules of oxygen are needed to make 3.5 oxygens of water?​
max2010maxim [7]

Answer:

57.6g

Explanation:

So, if in one mole of water, 16 g of oxygen atom is present. Then, in 3.6 moles of water, the mass of oxygen present will be 3.6×16=57.6g. Therefore, the amount of oxygen present in 3.6 g water is option (B)- 57.6 g.

8 0
2 years ago
On increasing which of the following factors, decreases the extent of physisorption? Surface area of the adsorbent Critical temp
Citrus2011 [14]

Answer: On increasing temperature at which adsorption is carried out decreases the extent of physisorption.

Explanation:

An adsorption where molecules of the adsorbate are placed or held on the surface of adsorbent by Vander waals forces is called physisorption.

There is basically physical bonding between the molecules of gas to the surface of a solid or liquid.

Physisorption is reversible in nature and occurs at low temperatures.

It is not specific in nature which means that all gases are adsorbed on the surface of every solid substance to some extent.

Thus, we can conclude that on increasing temperature at which adsorption is carried out decreases the extent of physisorption.

4 0
3 years ago
9 Cardiac disease is a major problem in the United States."
amid [387]

Answer:

D It affects the heart

Explanation:

5 0
3 years ago
Other questions:
  • What types of intermolecular interactions are present in pure substances composed of the each of the three molecules below:
    14·1 answer
  • if the products of a reaction are nacl and h2o what does the law of conservation of mass reveal about the reactants in the react
    7·2 answers
  • The reaction sequence shown below is an interesting method for turning alcohols into iodide leaving groups. in the first step, t
    7·1 answer
  • Dalton's Atomic Theory states A) that an atom is predominantly empty space. B) that matter is composed of small indestructible p
    11·1 answer
  • What substances is the most soluble in water?
    8·1 answer
  • Which of the following sources is considered to be most reliable for scientific
    15·1 answer
  • How has our society being developed six point.​
    11·1 answer
  • Which of the following formulas represents a molecular compound?
    11·1 answer
  • 2. A chemical reaction occurs when substances interact and their atoms
    8·1 answer
  • A chemical reaction is shown.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!