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
Oxana [17]
3 years ago
14

22 Which of the following statements is true for all loving organisms? A. All living organisms are made of one or more cells wit

h a cellular membrane and have a cell wall. B. All living organisms are made of one or more cells with a cellular membrane and have a nucleus. C. All living organisms are made of one ore more cells with a cellular membrane and genetic material. D. All living organisms are made of one or more cells with a cellular membrane and have chloroplast​
Chemistry
2 answers:
Klio2033 [76]3 years ago
8 0
The answer is C. No all cells have cell walls. Prokaryotes don’t have a nucleus or chloroplast. Leaving C to be correct
anygoal [31]3 years ago
7 0

Answer:

C

Explanation:

Ape-x

You might be interested in
What is the pH of a solution prepared by mixing 100.00 mL of 0.020 M Ca(OH)2 with 50.00 mL of 0.100 M NaOH? Assume that the volu
klemol [59]

Answer:

The pH of the solution is 12.78.

Explanation:

The pOH (or potential OH) is a measure of the basicity or alkalinity of a solution. The pOH is defined as the negative logarithm of the activity of the hydroxide ions. That is, the concentration of OH- ions:

pOH= - log [OH-]

On the other side, Molarity or Molar Concentration is the number of moles of solute that are dissolved in a certain volume. Molarity is calculated as:

Molarity= \frac{number of moles}{volume}

Molarity is expressed in units: \frac{moles}{liter}

In this case, the solution is prepared by mixing 100 ml (equal to 0.1 L, where 1000 mL = 1 L) of Ca(OH)₂ 0.020 M with 50 ml (equal to 0.05 L) of 0.100 M NaOH. Then, Ca(OH)₂ and NaOH are strong bases, so they dissociate completely. In the case of the first hydroxide, for each mole of Ca(OH)₂,

form two moles of OH-. In the case of sodium hydroxide, for each mole of hydroxide, one mole of OH- is formed. So, taking into account the definition of molarity, the number of moles of OH- that each hydroxide contributes to the solution is calculated as:

From Ca(OH)₂: 0.1 L* 0.02 M*2 = 0.004 moles

From NaOH: 0.05 L* 0.1 M= 0.005 moles

So, the amount of total moles of OH- is the sum that each hydroxide contributes to the solution: 0.004 moles + 0.005 moles= 0.009 moles

On the other hand, volumes are additive. Then: 0.1 L +  0.05 L= 0.15 L

Replacing in the definition of molarity the number of moles and the volume:

[OH-]=\frac{0.009 moles}{0.15 L}

Solving:

[OH-]= 0.06 \frac{moles}{liter}

Replacing in the definition of pOH:

pOH= - log 0.06

pOH= 1.22

The following relationship can be established between pH and pOH:

pH + pOH= 14

Being pOH= 1.22 and replacing:

pH + 1.22= 14

pH= 14 - 1.22

pH= 12.78

<u><em>The pH of the solution is 12.78.</em></u>

7 0
3 years ago
Sodium electron configuration unabbreviated
Tema [17]

Answer: [Ne] 3s¹

Explanation:

6 0
3 years ago
Using the two models, compare the processes of nuclear fusion and nuclear fission. What do the two processes have in common?
EleoNora [17]

Answer:it’s A and B

Explanation:

7 0
3 years ago
Read 2 more answers
What is the formula for barium iodide?
zysi [14]
Formula :  BaI₂. <span>barium iodide</span>
6 0
2 years ago
HELP PLEASE ON MY FINAL
tino4ka555 [31]

Answer:

grass

Explanation:

it is a plant, hope this helps

3 0
2 years ago
Read 2 more answers
Other questions:
  • Under appropriate conditions, nitrogen and hydrogen undergo a combination reaction to yield ammonia: N 2 (g) 3H 2 (g) 2NH3 (g) I
    12·1 answer
  • Explain how heat is related to thermal energy
    10·2 answers
  • A weak acid. What is the pH of a 0.1 M solution of acetic acid (pKa = 4.75)?
    7·1 answer
  • How many grams are in 2.30 x 10^24 atoms in silver
    10·1 answer
  • Using Carbon cycle what carbon trapped in fossil fuels is converted to carbon dioxide
    10·1 answer
  • A. Explain the difference between an exothermic chemical reaction and an endothermic chemical reaction.
    10·1 answer
  • Are synthetic materials useful? Explain your answer.
    7·2 answers
  • What's the mass in grams of 0.334 moles of sucrose (C12H22O11)?
    14·1 answer
  • What is white light?
    8·1 answer
  • What is needed for photosynthesis to take place? (Select all that apply.)
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!