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
MaRussiya [10]
3 years ago
5

7.7. A painter leans his back against a painted wall while looking into a 1m long mirror at the opposite end of a rectangular ro

om as shown in the given figure. How much of the painted wall can he see through the given mirror?
a. 1m
b. 2m
c. 12m
d. 6m

Chemistry
1 answer:
Karolina [17]3 years ago
8 0

Answer:

Correct answer is b) 2m

Explanation:

You might be interested in
How do the ongoing processes of scientific investigation and technological design interact with each other?
Yuri [45]
Answer is 
<span>a.Scientific investigation discovers new information that can be used in technological design, and technological design provides new products that can further scientific investigation.

Scientific investigation helps to discover new information, such as greater insight into how the world works. This information can be applied to technological design, illuminating new ways to do things. </span>
4 0
3 years ago
Read 2 more answers
Asexual reproduction
erastovalidia [21]
When an organism duplicates it’s dna and splits, creating an identical offspring
3 0
3 years ago
Read 2 more answers
What type of reaction is this?<br> A. double replacemment<br> B. Single replacement
irina [24]

Answer:

its B for sure

Hope it helps

3 0
3 years ago
Suppose you were titrating approximately 0.1 m hcl solution with standardized naoh solution (0.0989m). in your lab manual, you w
Semenov [28]
It alwasys chages becuse of magical bull in chem. ask the chem godzzz im aright  
5 0
3 years ago
Read 2 more answers
Tartaric acid, C4H6O6, has the first ionization constant with the value: Ka1 = 9.20 × 10-4. Calculate the value of pKb for the c
nirvana33 [79]

Answer:

pKb = 10.96

Explanation:

Tartaric acid is a dyprotic acid. It reacts to water like this:

H₂Tart  +  H₂O  ⇄  H₃O⁺   +  HTart⁻         Ka1

HTart⁻  +  H₂O  ⇄  H₃O⁺   +  Tart⁻²           Ka2

When we anaylse the base, we have

Tart⁻²   +  H₂O  ⇄  OH⁻  +  HTart⁻       Kb1

HTart⁻  +  H₂O  ⇄  OH⁻  +    H₂Tart          Kb2

Remember that Ka1 . Kb2  = Kw, plus pKa1 + pKb2 = 14

Kb2 = Kw / Ka1  →   1×10⁻¹⁴ / 9.20×10⁻⁴  = 1.08×10⁻¹¹

so pKb = - log Kb2   → - log 1.08×10⁻¹¹ = 10.96  

7 0
3 years ago
Read 2 more answers
Other questions:
  • Four girls share 10 cookies equally.How many cookies does each friend get
    8·2 answers
  • The equation, H2SO4 (aq) + Sr(OH)2 (aq) arrow SrSO4 (aq) + H2O (l), represents what?
    6·2 answers
  • Which ion has the largest ionic radius?<br> a.cl<br> b.cl-<br> c.na<br> d.na+?
    14·1 answer
  • COMPARE AND CONTRAST <br> PROPANE AND HEXANE ...?
    15·1 answer
  • Energy transfer by convection is usually restricted to what type of substance?
    15·1 answer
  • PLS HELP!! WILL GIVE BRAINLY!!
    11·1 answer
  • HELP ILL MARK BRAINLYEST IF UR RIGHT
    7·2 answers
  • How many particles are present in 0.67 moles of radon?
    9·1 answer
  • Can liquid methane change phases?
    7·2 answers
  • Oxygen is not a large part of the air used by organisms in respiration therefore it is not an important element.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!