A scientist is observing a cell in notices the presence of starch what does this tell her about the cell

1 answer:

6 0

The answer would be :

It is a plant cell because starch is the energy storing molecule in plant cells.

Hope this helps !

Photon

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An automobile tire was inflated to a pressure of 24 lb in-2 (1.00 atm = 14.7 lb in-2 ) on a winter’s day when the temperature wa

const2013 [10]

Explanation:

Initial Pressure = 24 lb in-2

Initial Temperature = –5 o C = 268 K (Converting to kelvin temperature)

Final Pressure = ?

Final Temperature = 35 o C = 308 K (Converting to kelvin temperature)

No Change in Volume.

From Gay Lusaac's law; pressure of a given amount of gas held at constant volume is directly proportional to the Kelvin temperature.

P1T1 = P2T2

P2 = P1T1 / T2

P2 = 24 * 268 / 308 = 20.88 lb in-2

There would be a drop in pressure as the temperature increases. Appropriate measures should b taken by regularly gauging the pressure of the tire.

6 0

2 years ago

If a container contains 3.5 moles and has a volume of 1.5 L, then what volume is it when it contains 8 moles? *

Lilit [14]

Volume would be 3.4 L

8 0

3 years ago

Rainly

Pani-rosa [81]

Answer:

$b.$ $obtain$

Explanation:

Let us look at all the answers definitions,

Sponsor would not work as it talks about a company offering you something in back for an advertisement.

Obtain would work as it means to acquire something.

Neglect would not work because it means to fail to care for something properly

Dismiss wouldn't work because it means to leave or allow to exit

5 0

3 years ago

What is the stoichiometric ratio between BaCl2 and NaCl

bixtya [17]

BaCl2+Na2SO4---->BaSO4+2NaCl There is 1.0g of BaCl2 and 1.0g of Na2SO4, which is the limiting reagent? "First convert grams into moles" 1.0g BaCl2 * (1 mol BaCl2 / 208.2g BaCl2) = 4.8 x 10^-3 mol BaCl2 1.0g Na2SO4 * (1 mol Na2SO4 / 142.04g Na2SO4) = 7.0 x 10^-3 mol Na2SO4 (7.0 x 10^-3 mol Na2SO4 / 4.8 x 10^-3 mol BaCl2 ) = 1.5 mol Na2SO4 / mol BaCl2 "From this ratio compare it to the equation, BaCl2+Na2SO4---->BaSO4+2NaCl" The equation shows that for every mol of BaCl2 requires 1 mol of Na2SO4. But we found that there is 1.5 mol of Na2SO4 per mol of BaCl2. Therefore, BaCl2 is the limiting reagent.

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3 years ago

13. What is the total pressure inside the container

nasty-shy [4]

Answer: The total pressure inside the container is 77.9 kPa

Explanation:

Dalton's law of partial pressure states that the total pressure of the system is equal to the sum of partial pressure of each component present in it.

To calculate the total pressure inside the container, we use the law given by Dalton, which is:

$P_T=p_{N_2}+p_{O_2}+p_{Ar}$