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
adelina 88 [10]
3 years ago
5

I NEED HELP PLEASE !!!!!

Chemistry
2 answers:
Andrei [34K]3 years ago
4 0
Second choice : technology has replaced humans needs
Jobisdone [24]3 years ago
3 0

Answer: My opinion is the second one because a lot of humans uses technology and technilogy replaces a lot of stuff.

Explanation:

You might be interested in
For the following reaction, 35.4 grams of zinc oxide are allowed to react with 6.96 grams of water . zinc oxide(s) + water(l) --
IRISSAK [1]

Answer:

m_{Zn(OH)_2}=38.4g

Explanation:

Hello!

In this case, for the undergoing chemical reaction:

ZnO(s)+H_2O(l)\rightarrow Zn(OH)_2

We evaluate the yielded moles of zinc hydroxide by each reactant as shown below:

n_{Zn(OH)_2}^{by ZnO}=35.4gZnO*\frac{1molZnO}{81.38gZnO}*\frac{1molZn(OH)_2}{1molZnO}  =0.435molZn(OH)_2\\\\n_{Zn(OH)_2}^{by H_2O}=6.96gH_2O*\frac{1molH_2O}{18.02gH_2O}*\frac{1molZn(OH)_2}{1molH_2O}  =0.386molZn(OH)_2

In such a way, since the water yields a smaller amount of zinc hydroxide we conclude it is the limiting reactant so the maximum mass is computed below:

m_{Zn(OH)_2}=0.386molZn(OH)_2*\frac{99.424 gZn(OH)_2}{1molZn(OH)_2} \\\\m_{Zn(OH)_2}=38.4g

Because the water limits the yielded amount of zinc hydroxide.

Best regards!

5 0
3 years ago
Which statement is accurate for these two sub-atomic particles.
krek1111 [17]

Answer:

The correct answer is "They are both located in the nucleus".

Explanation:

I had to look for the problem and found that the particles are a Proton and a Neutron.

The atomic nucleus is the central section of an atom, is positively charged and has almost the entire mass of the atom.

The nucleus is formed by protons and neutrons, which are held together by strong nuclear interaction, which allows the nucleus to be stable.

Have a nice day!

8 0
4 years ago
Discription and explain the formation of positive and negative ions​
Ivahew [28]

Answer:

its down below

Explanation:

i don't know whether this is what u were searching for but i tried my best...

8 0
3 years ago
Read 2 more answers
If someone gave you flour, sugar, butter, eggs, baking soda, and salt, what could those ingredients turn into?
iren [92.7K]

Answer:

You can make Cake CAke Cake Cake and other stuff too Ig

Explanation:

4 0
3 years ago
What fraction of the carbon dioxide exhaled by animals is generated by the reactions of the citric acid cycle
puteri [66]

Answer:

1/3

Explanation:

Pyruvate is produced by the glycolysis in cytoplasm. The oxidation of pyruvate takes place in mitochondrial matrix.  

Pyruvate is converted to acetyl-CoA in the reaction given below:

Pyruvate + NAD⁺ + CoA-SH ⇒ acetyl-CoA + NADH + CO₂

1 molecule of carbon dioxide is eliminated from 1 molecule of pyruvate.

Also,  

2 molecules of carbon dioxide is eliminated from 2 molecules of pyruvate (as glucose on glycolysis yields 2 molecules of pyruvate).

Also, acetyl-CoA further goes into the citric acid cycle and produces 2 molecules of carbon dioxide.

Thus pyruvate produces total 3 molecules of CO₂  and hence glucose produces 6 molecules of CO₂ (as glucose on glycolysis yields 2 molecules of pyruvate)

Thus,

<u>Fraction = 2/6 = 1/3</u>

4 0
4 years ago
Other questions:
  • What are the 10 families on the peruodic table?
    6·1 answer
  • How do you find molality and molarity?
    6·1 answer
  • Which equation is correctly balanced?
    5·1 answer
  • Which of the following changes is observed when we move across the row from left to right in the periodic table?
    14·2 answers
  • What is the correct interpretation of the mole ratios for the elements in
    10·1 answer
  • Define a salt bridge.
    7·1 answer
  • What is the mass of 1.00 mol of oxygen (O2)?
    12·1 answer
  • Why is the hydrogen molecule stable with only 2 electrons while the fluorine molecule needs to have 8 electrons available for ea
    10·1 answer
  • • How did your experimental absolute zero value compare to the accepted value?
    15·1 answer
  • Question 11 help me pls
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!