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
kirill115 [55]
3 years ago
10

Why do group 7 elements have higher melting and boiling points going down?

Chemistry
1 answer:
Genrish500 [490]3 years ago
8 0

Answer:

this is because the van der waals forces or also known as induced dipole-dipole interactions increase because more electrons are present within an atom as you go down

Explanation:

-

You might be interested in
As we move UP a energy pyramid, the amount of energy available to each level of consumers
cricket20 [7]

Answer:

well we do need up to explain the neergyu field on the world you probaly think im spamming but i thing you need up

Explanation:

7 0
2 years ago
Freezing point<br> Where would you place this property in the Venn diagram?
Marat540 [252]
For the Venn diagram, freezing water should be in the physical category (A)
7 0
3 years ago
Read 2 more answers
What are the properties of seismic waves?
natima [27]

Answer: incompressibility, rigidity, and density

Explanation:

6 0
2 years ago
Substances that have a define size and shape and vibrating particles that are close together are​
Mazyrski [523]

Substances that have a define size and shape and vibrating particles that are close together are called Solid.

Explanation:

There are three states of matter - solid, liquid and gas.

Lets talk about solid state in detail.

In solid particles are closely packed and so they have very less or no space to move which results in vibrating particles. This results in solid substances having a fixed shape and volume.

The particles have very little space in between them, so it is not easy to compress solid.

There is no free space for particles to slide over each other, which does not allow solids to flow.

Also, particles in solid have a regular arrangement, they are not randomly packed.

7 0
3 years ago
Nitrogen dioxide reacts with water to form nitric acid and nitrogen monoxide according to the equation: 3NO2(g)+H2O(l)→2HNO3(l)+
Vesnalui [34]

Answer:

2 mol NO2

Explanation:

                                      3NO2(g)+H2O(l)→2HNO3(l)+NO(g)

from reaction                3 mol        1 mol

given                           11 mol          3 mol

for 3 mol NO2  -----   1 mol H2O

for x mol NO2  -----   3 mol H2O

3:x = 1:3

x = 3 *3/1 = 9 mol NO2

So, for 3 mol H2O are needed only 9 mol NO2.

But we have 11 mol NO2. So, NO2 is in excess, and

11 mol NO2 - 9 mol NO2 = 2 mol NO2 will be left after reaction.

3 0
3 years ago
Other questions:
  • Which diatomic molecule is formed when the two atoms share six electrons
    5·2 answers
  • What is a controlled factor in an experiment?
    8·1 answer
  • How many moles of water are in 1.23 x 10^18 water molecules?
    13·2 answers
  • Is air a molecule or a mixture
    10·1 answer
  • Almost all characteristics of a star are determined by its
    11·1 answer
  • ]If a sample of pure iodine contains 4.69 x 1022 atoms of iodine, how many moles of iodine are in the sample? A=0.08 B=0.13 C=7.
    12·2 answers
  • can anyone help with this mole to mole/mole to grams question? any help would be greatly appreciated! Thanks!
    13·1 answer
  • Look at your gumdrop model of a water molecule. If you had several of those water molecules, and you pulled the gumdrops apart,
    13·1 answer
  • Question 21 of 25 Which of the following requires a chemical change?
    5·2 answers
  • What type of energy is being used by the roller coaster at each point? 8 9) 10) 11) 8) 9) 10) 11) A) Potential Energy A) Gaining
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!