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
goldfiish [28.3K]
3 years ago
12

]

Chemistry
1 answer:
crimeas [40]3 years ago
8 0

Answer:

Answer is A Peasants were valued members of society in Japan but not in Europe.

Explanation:

You might be interested in
How would increasing the original concentration of a weak acid affect its ka and pka?
Inessa [10]

Answer: C. K_a would increase and pK_a would decrease.

Explanation:

HA\rightleftharpoons H^++A^-

initially conc.       c       0         0

At eqm.  c(1-\alpha)   c\alpha      c\alpha

The expression for dissociation constant is,

K_a=\frac{c\alpha\times c\alpha}{c(1-\alpha)}

for weak acid, \alpha is very very small , the expression will be,

K_a=\frac{c^2\alpha^2}{c}=c\alpha^2

K_a=c\alpha^2As k_a is directly proportional to concentration, the value of K_a would increase on increasing the concentration.

pK_a=log\frac{1}{K_a}

Thus if K_a would increase, pk_a would decrease.

8 0
3 years ago
How are the elements arranged in the modern periodic table g?
Yuri [45]
Rows and numbers and periods 
3 0
4 years ago
What type of chemical reaction is this? CH4 + O2 + CO2 + H20 ?
klio [65]

Answer:

combustion reaction. hope this helps!

5 0
3 years ago
When sodium metal is added to water, the following reaction occurs:
zheka24 [161]

Answer:

d. n H2(g) = 0.034 mol

Explanation:

  • 2Na(s) + 2H2O(l) → 2NaOH(aq) + H2(g)

                              2 - Na - 2

                              4 - H - 4

                               2 - O - 2

∴ n Na(s) = 0.068 mol

⇒ n H2(g) = ( 0.068 mol Na(s) )( mol H2(g) / 2 mol Na(s) )

⇒ n H2(g) = 0.034 mol

8 0
3 years ago
HELP ILL MATK YOU AS BRAINLEST
Westkost [7]

Answer:

Tissues And Organ Systems

Explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • Please comment if you know the correct answer
    10·1 answer
  • Item 4
    12·1 answer
  • What is the difference between covalent bonds and ionic bonds?
    5·2 answers
  • americium-241 has a half-life of 430 years. how much of a 10.0g sample of americium-241 remains after 1720 years?
    11·1 answer
  • 1.) What is TWO or more DIFFERENT atoms joined together by bonds such as NaCl or H20?
    6·1 answer
  • Mr. Ragusa asks Hassan to make silver crystals from the following reaction.
    9·1 answer
  • How many protons, electrons, and neutrons does an atom with atomic number 50 and mass number 120 contain?
    7·1 answer
  • How many moles are there in 100.0 grams of KMnO4
    15·1 answer
  • When washing tableware the water temperature should be:
    9·1 answer
  • Balance the equation: H2O2 → H2O + O2
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!