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Below are the choices the answer is E
A. It is an animal cell because starch is the energy storing molecule in animal cells.
<span>B. It is an animal cell because starch is responsible for protein synthesizing in animal cells. </span>
<span>C. It is a plant cell because starch is responsible for protein synthesizing in plant cells. </span>
<span>D. It is a plant cell because starch is responsible for cell building in plant cells. </span>
<span>E. It is a plant cell because starch is the energy storing molecule in plant cells.</span>
This technique has no effect on the percent of acetic acid in the vinegar, as deionized water does not affect the number balance of H+ hydronium ions or OH- hydroxide ions. This is done just to make the endpoint reading easier.
Answer:
argon is 18 2-8-8 since it has octet circle and fully stable you can say it has no electro negativity
<u>Answer:</u>
<em>The mole to mole ratio between oxygen gas and water is 2 : 1</em>
<em></em>
<u>Explanation:</u>
Balancing is making the number of atoms of each element same on both the sides (reactant and product side).
To find the number of atoms of each element we multiply coefficient and the subscript
For example
contains
5 × 1 = 5 ,Ca atoms and
5 × 2 = 10, Cl atoms
If there is a bracket in the chemical formula
For example
we multiply coefficient × subscript × number outside the bracket to find the number of atoms
(Please note: 3 is the coefficient, and if there is no number given then 1 will be the coefficient )
So
3 × 3 = 9 , Ca atoms
3 × 1 × 2 = 6, P atoms
3 × 4 × 2 = 24, O atoms are present.
So
The balanced chemical equation is
![2H_2 O >2H_2+1O_2](https://tex.z-dn.net/?f=2H_2%20O%20%3E2H_2%2B1O_2)
The number which stands in front of the chemical formula is the coefficient and it represents the number of moles of each substance.
So we see here 2 is the coefficient of
and 1 is the coefficient of
So the mole ratio of water and oxygen gas is 2 : 1
(Answer)
1.08 atm is the pressure for a certain tire in atmosphere.
<u>Explanation:</u>
One kilo pascal (1 kPa) corresponds to 1000 pascal. Another common unit used for pressure is atmosphere (symbolised as ‘atm’). 1 atm refers the standard atmospheric pressures and corresponds to 760 mm Hg and 101.3 kPa. Atmospheric pressures are commonly referred as square inches (psi)/ pounds.
![1 \mathrm{atm}=101.3 \mathrm{kPa}=101,325 \mathrm{Pa}=760 \mathrm{mm} \mathrm{Hg}=760 \text { torr }=14.7 \mathrm{lb} / \mathrm{in}^{2}(\mathrm{psi})](https://tex.z-dn.net/?f=1%20%5Cmathrm%7Batm%7D%3D101.3%20%5Cmathrm%7BkPa%7D%3D101%2C325%20%5Cmathrm%7BPa%7D%3D760%20%5Cmathrm%7Bmm%7D%20%5Cmathrm%7BHg%7D%3D760%20%5Ctext%20%7B%20torr%20%7D%3D14.7%20%5Cmathrm%7Blb%7D%20%2F%20%5Cmathrm%7Bin%7D%5E%7B2%7D%28%5Cmathrm%7Bpsi%7D%29)
Given:
The air pressure for a certain tire = 109 kPa
We need to find pressure in atmospheres
So, we know,
1 atm = 101.3 kPa
Hence,
![\frac{109 \mathrm{kPa}}{1} \times \frac{1 \mathrm{atm}}{101.3 \mathrm{kPa}}=1.076=1.08 \mathrm{atm}](https://tex.z-dn.net/?f=%5Cfrac%7B109%20%5Cmathrm%7BkPa%7D%7D%7B1%7D%20%5Ctimes%20%5Cfrac%7B1%20%5Cmathrm%7Batm%7D%7D%7B101.3%20%5Cmathrm%7BkPa%7D%7D%3D1.076%3D1.08%20%5Cmathrm%7Batm%7D)
1.08 atm is the pressure for a certain tire in atmosphere.