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
viva [34]
3 years ago
8

Help me answer these questions

Chemistry
2 answers:
Elza [17]3 years ago
3 0

Answer:

10, True

Explanation:

Because weather is what conditions of the atmosphere are over a short period of time and climate is how the atmosphere behaves over a long period of time.

never [62]3 years ago
3 0

Answer:

8. Equator

9.

a. thermometer

b. manometer

c.hygrometer

d.Anemometers

10. True

Explanation:

You might be interested in
How many sulphur atoms are there in 0.125 moles of sulphur
denpristay [2]

Explanation:

There are 6.022x1023 molecules in 1 mole of SO3 (Avogadro's number) so in 0.25 moles, there are (0.25)(6.022x1023) molecules in the 0.25 moles of SO3. or 1.506x1023 molecules per 0.25 moles of SO3.

There is one atom of sulfur in each molecule of SO3. So there are 1.506x1023 atoms of sulfur in 0.25 moles of SO3.

6 0
3 years ago
what is the electrons, valence electrons, and electron shells number please answer all 3 questions (look at the picture)
MariettaO [177]

In picture one, there are four electrons, one valance electrons and two shells, in image two there are three electrons, one valance electrons and two shells whereas there are 13 electrons, three valance electrons and three shells.

<h3>What is Electrons, Valence Electrons, and Electron Shells Numbers?</h3>

<u>Electrons</u>:

An electron is a negatively charged particle which can be either bounded with to an atom. Electrons belong to the first generation of the lepton particle family, and are generally thought to be elementary particles because they have no known components or substructure.

<u>Valence Electrons:</u>

Valence electrons are those electrons which are present in outermost shell or in valence shell or energy level of an atom. For example, oxygen has six valence electrons, two in the 2s subshell and four in the 2p subshell.

<u>Electron Shells Numbers</u>:

Each shell can contain only a fixed number of electrons: the first shell can hold up to two electrons, the second shell can hold up to eight (2 + 6) electrons, the third shell can hold up to 18 (2 + 6 + 10) and so on.

So we can conclude that In picture one, there are four electrons, one valance electrons and two shells, in image two there are three electrons, one valance electrons and two shells whereas there are 13 electrons, three valance electrons and three shells.

Learn more about Valence Electrons here: brainly.com/question/371590

#SPJ1

4 0
1 year ago
Maria poured 25 grams of water into a beaker. She stirred in 5 grams of salt. The salt dissolved. What is the total mass of Mari
Ahat [919]

Answer:

The answer to your question is: 30 g

Explanation:

Data

mass of water = 25 g

mass of salt = 5 g

Process

total mass = mass of water + mass of salt

                 = 25 + 5

                 = 30 g

7 0
3 years ago
Read 2 more answers
Which of the following metals has the highest melting point?
AveGali [126]

The metal with the highest melting point is aluminium which melts at 660.3°C.

Magnesium melts at 639°C , sodium at 98°C and potassium at 64°C.

The melting point is the temperature at which a substance  begins to melt. As a solid substance is heated, or absorbs heat from the environment,  the molecules that make up that substance begin to gain more (heat) energy, enough to overcome the intermolecular forces that in the first place have been holding them together in a sort of rigid fashion.

This energy enables the molecules  to break free of their intermolecular forces and thus the solid's lattice structure changes and the solid becomes liquid.

 


3 0
4 years ago
What does the term spontaneous mean in chemical reactions?
irakobra [83]

Answer:

B

Explanation:

Spontaneous in chemical reactions means without any external input.

7 0
3 years ago
Read 2 more answers
Other questions:
  • List at least three chemical innovations that improve or change your everyday life
    12·1 answer
  • What's the difference between an alcohol and alkanol? Some sources say they're the same thing, others say all alkanols are alcoh
    7·1 answer
  • What is the balanced equation for the complete combustion of pentane (C5H12)?
    9·1 answer
  • (blank) from digested carbohydrates is an important substance that contains stored chemical energy.
    8·1 answer
  • The temperature program for a separation starts at a temperature of 50 °C and ramps the temperature up to 270 °C at a rate of 10
    7·1 answer
  • A low-pressure weather system comes into the city of Denver. The atmospheric pressure is 693 mmHg.693 mmHg. If 78.0%78.0% of dry
    11·1 answer
  • What is the process called when rocks are broken down into smaller pieces over time by the environment
    11·2 answers
  • What substance is in water
    9·1 answer
  • Alcano con 1 carbono?
    7·1 answer
  • A disturbance that transfers energy from one place to another without transferring matter
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!