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
g100num [7]
3 years ago
7

SI units are based on multiples of what number?

Chemistry
1 answer:
Alinara [238K]3 years ago
3 0
SI unites are based on multiplying or dividing by 10, 100, 1,000, 10,000 (and so on...) depending on the unit you're solving for.
You might be interested in
What trend does the first ionization energy follow, going down the periodic
-Dominant- [34]

Answer:

C. The first ionization energy decreases because the outermost

electron is farther from the nucleus.

Explanation:

Ionization energy trend along group:

As we move down the group atomic radii increased with increase of atomic number. The addition of electron in next level cause the atomic radii to increased. The hold of nucleus on valance shell become weaker because of shielding of electrons thus size of atom increased.

As the size of atom increases the ionization energy from top to bottom also  decreases because it becomes easier to remove the electron because of less nuclear attraction and as more electrons are added the outer electrons becomes more shielded and away from nucleus.

Ionization energy trend along period:

As we move from left to right across the periodic table the number of valance electrons in an atom increase. The atomic size tend to decrease in same period of periodic table because the electrons are added with in the same shell. When the electron are added, at the same time protons are also added in the nucleus. The positive charge is going to increase and this charge is greater in effect than the charge of electrons. This effect lead to the greater nuclear attraction. The electrons are pull towards the nucleus and valance shell get closer to the nucleus. As a result of this greater nuclear attraction atomic radius decreases and ionization energy increases because it is very difficult to remove the electron from atom and more energy is required.

6 0
3 years ago
Read 2 more answers
Perform an on-line search to discover what conditions are favourable to the growth of moss. be sure to include a comment on ph c
Genrish500 [490]
Moss can grow abundantly in an environment with favorable conditions. They usually grow abundantly in cool, moist and dark places. If not dark, they prefer shady areas. Also, they tend to grow in acidic soil with pH range between 5.0-5.5. 
4 0
3 years ago
What is the pressure in a gas container that is connected to an open-end U-tube manometer if the pressure of the atmosphere is 7
Whitepunk [10]

Answer:

The pressure in the gas is 656mmHg

Explanation:

In calculating the pressure of the gas;

step 1: convert the height of the mercury arm to mmHg

9.60cm = 96.0 mmHg

step 2: convert 752 torr to mmHg

I torr is 1 mmHg

752 torr = 752mmHg

Step 3: since the level of mercury in the container is higher than the level of mercury exposed to the atmosphere, we substrate the values to obtain our pressure.

So, 752mmHg - 96mmHg = 656mmHg

The pressure in the gas container is therefore 656mmHg.

N. B : if the mercury arm is in lower position, you add.

5 0
3 years ago
In which of the following substances does sharing of electrons between two atoms occur?
Ilya [14]

Answer:

Explanation:

CO2

3 0
3 years ago
6. Plants play a vital role in the environment because photosynthesis
Vanyuwa [196]

Answer:

C

Explanation:

Plants help in carbon dioxode reduction so plants uses atmospheric carbon dioxide and water to produce sugars and oxygen.

HOPE ITS HOPEFUL.

6 0
3 years ago
Read 2 more answers
Other questions:
  • What is the difference between mitosis and meiosis
    14·2 answers
  • Which element would chemically react with oxygen​
    14·1 answer
  • The mother of a child has a cleft chin while the father of a child has a smooth chin. The child also has a cleft chin
    7·1 answer
  • Help me please!!! HELP ME
    8·1 answer
  • Why are ethics important when considering experiments??
    8·2 answers
  • I have to re ask this but pls help me I don't have a lot of time
    15·2 answers
  • Which of the following colors is/are produced when white light from sun is passed through a prism?
    8·1 answer
  • What is an empirical formula
    5·2 answers
  • 2. Consider the following balanced chemical reaction:
    15·1 answer
  • Why does neon gas consist of individual, unbonded neon atoms while chlorine exists as diatomic chlorine molecules?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!