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
Cerrena [4.2K]
3 years ago
12

Why does hardness decrease with increasing molecular weight of the metals in the oxygen compounds?

Geography
1 answer:
Lynna [10]3 years ago
3 0

<u>Answer:</u> <em> Option (A)</em>

<em>Larger molecular weight means a smaller valence or charge on the metal, so making the bond between them weaker and the hardness lower</em>

<u>Explanation:</u>

<em>Hardness decrease with increasing molecular weight of the metals</em> in the oxygen compounds, the reason for the decrease in hardness of the metals is due to chemical repulsion (inter molecular forces between atoms) which is greater when the metal and oxygen are close to each other <em>making the compound hard.</em>

If the repulsion is smaller, the compound has less hardness. So when the molecular weight is large, it has smaller valence or less charge on the<em> metal which makes the bond weaker and less hard.</em>

You might be interested in
Two students make a model of a tree house they want to build. The scale is 1:42. In the scale model,the door is 3 cm tall. How t
Lady bird [3.3K]

Answer: The real tree house door should be 126 cm tall.

Explanation:

Given: Two students make a model of a tree house they want to build. The scale is 1:42.

i.e. 1 cm of model = 42 cm in real

if the in the scale model,the door is 3 cm tall, then the height of real tree house door  = 3  x (42) cm

⇒ Height of real tree house door=  126 cm

Hence, the real tree house door should be 126 cm tall.

3 0
3 years ago
Metals and minerals are one example of a _______ resource. Metals and minerals accumulate in specific regions on Earth due to __
Hunter-Best [27]
<h2>Answer:</h2>

1. <u>Minerals</u>

2. <u>Geological</u>

3. <u>Indefinitely</u>

4. <u>Pressure</u>

<h2>Explanation:</h2>

1. The minerals play a wide role in industrial and agricultural developments. In industries, the minerals are used as raw materials at the same time in agriculture, it is helps in growing plant growth as fertilizers and nutrients.

2. The geological activity includes movement of earth plates under the earth's surface which is mainly due to presence of heat deep inside the earth.

3. There are huge amount of minerals in this earth, but everything is need to be used in a very economical way, without wasting.

4. The pressure and temperature is need to favorable to form the minerals.

6 0
3 years ago
Read 2 more answers
Describe the steps that were involved in the making of the sun​
Vesnalui [34]

Many scientists think the sun and the rest of the solar system formed from a giant, rotating cloud of gas and dust known as the solar nebula. As the nebula collapsed because of its gravity, it spun faster and flattened into a disk. Most of the material was pulled toward the center to form the sun.

4 0
3 years ago
Why are companies and skilled professionals eager to move into urban areas?
Lisa [10]

Answer:

because urban areas are cenralized thus allowing one reach a bigger market

Explanation:

8 0
3 years ago
14. what will ultimately happen to the juan de fuca ridge and the gorda ridge?
Juli2301 [7.4K]

Along the Juan de Fuca Ridge, volcanoes produce oceanic crust. The Juan de Fuca Plate cools, grows denser, and finally sinks beneath the less dense North American Plate at the Cascadia Trench as it wanders eastward.

<h3>Is the Juan de Fuca Plate dying?</h3>

Because the decaying Juan de Fuca plate is not sinking silently, scientists have a unique opportunity to investigate such impacts. They are intently observing the system's every tremble and burp. (We learned that a strong earthquake broke a tectonic plate in half in this way.)

<h3>How Fast Is Juan de Fuca moving?</h3>

The Farallon Plate, a much bigger oceanic plate that originally existed alongside the smaller Juan De Fuca Plate, is moving east-northeast at a rate of 4 cm (1.6 inches) each year.

<h3>What is happening between the Gorda Plate and the Pacific Plate?</h3>

At a rate of 5 cm per year, the Pacific Plate is diverging from the Gorda Plate as it moves in a northwesterly direction. At a much slower rate of 2.5 to 3 cm per year, the Juan de Fuca Plate (which includes the Gorda Plate) is subducting beneath the North America Plate.

Learn more about  Juan de Fuca visit:

brainly.com/question/12534548

#SPJ4

6 0
1 year ago
Other questions:
  • Why are fossil fuels used so much today
    14·2 answers
  • Which of the following deserts is characterized by moderately warm to cool temperatures?
    15·2 answers
  • What part of Central Asia has the mildest climate?
    7·1 answer
  • What renewable resource is produced in Western Central Europe?
    6·2 answers
  • Population growth rate for Australia in percentage
    15·1 answer
  • Which of the following cities is located on the most densely populated island of Indonesia?
    13·1 answer
  • California has a large East Asian population as a result of the __________ of immigrants after World War II.
    5·2 answers
  • The suns energy is made up of
    8·1 answer
  • What crystal is this?
    8·1 answer
  • Which map that indicate the regions where tropical cyclone Florence develop
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!