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
nexus9112 [7]
3 years ago
9

write an apology letter to your principal telling him why you were not in the mathematics competition.in 4000 words​

Chemistry
1 answer:
tensa zangetsu [6.8K]3 years ago
3 0
OK now that’s a lot to ask for but if you want someone to actually do that you’re gonna need a lot more points
You might be interested in
How is science used on a daily basis give 3 reasons how
goldenfox [79]
1-Autonomy: Our desire to direct our own lives. In short: “You probably want to do something interesting, let me get out of your way!”
2-Mastery: Our urge to get better at stuff.
3-Purpose: The feeling and intention that we can make a difference in the world.
7 0
4 years ago
What is the empirical formula
Radda [10]

Answer:

a formula giving the proportions of the elements present in a compound but not the actual numbers or arrangement of atoms.

Explanation:

4 0
2 years ago
[OH-] for a solution is
solong [7]

Answer:

B = basic

Explanation:

Given data:

[OH⁻] = 5.35×10⁻⁴M

pH = ?

Solution:

pOH = -log[OH⁻]

pOH = - [5.35×10⁻⁴]

pOH = 3.272

it is known that,

pH + pOH = 14

pH = 14- pOH

pH = 14 - 3.272

pH = 10.728

The acidic pH is range from zero to less than 7 while 7 pH is neutral and above 7 the pH is basic. So, the given solution is basic.

8 0
3 years ago
Read 2 more answers
Is iced tea with no ice a homogenuous or a heterogenuous mixture? ...?
yan [13]
It is a homogeneous mixture because you cannot see the individual components that make up the iced tea (such as the water, the molecules found in the tea leaves, etc.). Iced tea with ice in it is considered a heterogeneous mixture because you can distinguish the tea from the ice.
3 0
3 years ago
The temperature and number of moles of a gas are held constant. Which of the following is true for the pressure of the gas?
Taya2010 [7]

Answer:

Pressure is inversely proportional to the volume of gas.

Explanation:

According to Boyle's law,

The volume of given amount of gas is inversely proportional to the pressure applied on gas at constant volume and number of moles of gas.

Mathematical expression:

P ∝ 1/ V

P = K/V

PV = K

when volume is changed from V1 to V2 and pressure from P1 to P2 then expression will be.

P1V1 = K         P2V2 = K

P1V1 = P2V2

3 0
4 years ago
Other questions:
  • How would a solution that is labeled 5.0 M would be read as?
    5·2 answers
  • How many kj of heat are needed to completely vaporize 3.30 moles of h2o?
    8·1 answer
  • We call the elements in the blocks of periods 4-7 and groups 3-12 the
    13·1 answer
  • The energy required to remove an electron from the outermost shell is called
    12·1 answer
  • How to i tell my straight (i think) friend I'm in Io\/e with her?
    6·2 answers
  • Carbon atoms can be identified based on the # of which subatomic particles
    7·1 answer
  • A graph of energy consumption in the United States versus time slopes upward. This indicates that energy consumption has _____ .
    11·2 answers
  • Explain why science is is you significant digits
    13·1 answer
  • 24 g of magnesium to mol
    13·1 answer
  • How long is a bench? Select the best estimate.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!