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
Fudgin [204]
2 years ago
6

Help mee what’s 1+1

Chemistry
2 answers:
alekssr [168]2 years ago
8 0

Answer:

1+1 equals 2. Nice question.

Explanation:

Your welcome!

Agata [3.3K]2 years ago
6 0

Answer:

Window

Explanation:

1+1 is the same as 11 + so you ummmm take the lines and make a circle with the corners and then subtract the edges and get 3 so 1-3 is ummmmm smart math calculations its ummmmmm.... its....... itssss....... 2 yes the answer is two

You might be interested in
The pH of a 0.65M solution of hydrofluoric acid HF is measured to be 1.68. Calculate the acid dissociation constant Ka of hydrof
sergey [27]

Answer:

Kₐ = 6.7 x 10⁻⁴

Explanation:

First lets write the equilibrium expression, Ka , for the dissociation of hydrofluoric acid:

HF + H₂O     ⇄   H₃O⁺ +   F⁻

Kₐ = [ H₃O⁺ ] [ F⁻ ] /[ [ HF ]

Since we are given the pH we can calculate the  [ H₃O⁺ ]  ( pH = - log [ H₃O⁺ ] , and because the acid dissociates into a 1: 1  relation , we will also have [F⁻ ]. The  [ HF ] is given in the question so we have all the information that is needed to  compute Kₐ.

pH = -log [ H₃O⁺ ]

1.68 = - log [ H₃O⁺ ]

Taking antilog to both sides of this equation:

10^-1.68 = [ H₃O⁺ ] ⇒ 2.1 X 10⁻²  M= [ H₃O⁺ ]

[ F⁻ ] = 2.1 X 10⁻² M

Solving for Kₐ :

Kₐ = ( 2.1 X 10⁻² ) x  ( 2.1 X 10⁻² ) / 0.65 = 6.7 x 10⁻⁴  

(Rounded to two significant figures, the powers of 10 have infinite precision )

4 0
2 years ago
What is the mass of 22.4 L of H2 at STP? (5 points)
cestrela7 [59]
11.2
Step-by-step-explanation
3 0
2 years ago
Read 2 more answers
What is 2.75 mol of O2
ANTONII [103]

Answer:

2,75 mol of O2 it's 88 g of O2.

Explanation:

The weight of the diatomic molecule O2 is 32 g/mol. So considering that, you should multiply 2,75 mol · 32 = 88g :)

3 0
2 years ago
Where does ATP store its energy?
RSB [31]

Answer:

D. ATP stores energy in its "tail," which is made from three phosphate groups.

Explanation:

ATP = 3 phosphates

ADP= 2 phosphates

AMP= 1 phosphate

4 0
3 years ago
A 100.0 ml sample of 0.10 m ca(oh)2 is titrated with 0.10 m hbr. determine the ph of the solution after the addition of 400.0 ml
WINSTONCH [101]
The balanced equation for the reaction is as follows;
Ca(OH)₂ + 2HBr --> CaBr₂ + 2H₂O
stoichiometry of Ca(OH)₂ to HBr is 1:2
number of Ca(OH)₂ moles reacted - 0.10 mol/L x 0.1000 L = 0.010 mol
Number of HBr moles added - 0.10 mol/L x 0.4000 = 0.040 mol 
1 mol of Ca(OH)₂ needs 2 mol of HBr for neutralisation
therefore 0.010 mol of Ca(OH)₂  needs - 0.010 x 2 = 0.020 mol of HBr to be neutralised
but 0.040 mol of HBr has been added therefore number of moles of HBr in excess - 0.040 - 0.020 = 0.020 mol 
then pH of the medium can be calculated using the excess H⁺ ions
HBr is a strong acid therefore complete ionization
[HBr] = [H⁺]
[H⁺] = 0.020 mol / (100.0 + 400.0 mL)
      = 0.020 mol / 0.5 L 
      = 0.040 mol/L
pH = -log[H⁺] 
pH = - log [0.040 M]
pH = 1.40
pH of the medium is 1.40
8 0
3 years ago
Other questions:
  • HELP ASAP PLEASE!!
    13·1 answer
  • Why is frying an egg an example of a chemical change?
    12·1 answer
  • What keeps the water cycle going?
    15·2 answers
  • Gravity is a force of attraction between two or more masses. The gravitational attraction between the Sun and each of the planet
    12·1 answer
  • nonpolar solutes dissolve more readily in nonpolar solvents than polar solvents. Describe the interactions occuring between the
    11·1 answer
  • A sample of ideal gas is in a sealed container. The pressure of the gas is 705 torr , and the temperature is 19 ∘C . If the temp
    5·1 answer
  • What is the molecular geometry of H2O?
    15·1 answer
  • I2 + Na2S2O3 → NaI + Na2S4O6 Balance the equation, if necessary.
    15·2 answers
  • Which of the following is a reactant in aerobic respiration?
    11·1 answer
  • What best describes the goals of scientific investigation and technological development?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!