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Rufina [12.5K]
2 years ago
5

How can you tell if glucose is present?

Chemistry
1 answer:
rosijanka [135]2 years ago
4 0

Answer:

Plants use photosynthesis to make glucose. Glucose is also know as sugar. You can tell it is present if the plant receives sunlight as well as water.

Explanation:

MARK BRAINLIEST

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Why is water called a universal solvent?
kondor19780726 [428]

Answer: B

Explanation:

Water is called the "universal solvent" because it dissolves more substances than any other liquid.

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2 years ago
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Number the elements sodium, magnesium, and potassium in the predicted order of ionic radius from the largest (1) to the smallest
Aleksandr-060686 [28]
Potassium ,sodium, and magnesium
7 0
3 years ago
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please hurry! If 3.87g of powdered aluminum oxide is placed in a container containing 5.67g of water, what is the limiting react
VikaD [51]

Answer:

Explanation:

Given parameters:

Mass of aluminium oxide = 3.87g

Mass of water = 5.67g

Unknown:

Limiting reactant = ?

Solution:

The limiting reactant is the reactant in short supply in a chemical reaction. We need to first write the chemical equation and convert the masses given to the number of moles.

Using the number of moles, we can ascertain the limiting reactants;

         Al₂O₃  + 3H₂O  →  2Al(OH)₃  

Number of moles;

            Number of moles = \frac{mass}{molar mass}

molar mass of Al₂O₃  = (2x27) + 3(16) = 102g/mole

    number of moles = \frac{3.87}{102}  = 0.04mole

   

molar mass of  H₂O = 2(1) + 16 = 18g/mole

    number of moles = \frac{5.67}{18}  = 0.32mole

From the reaction equation;

        1 mole of  Al₂O₃  reacted with 3 moles of H₂O

   0.04 mole of Al₂O₃ will react with 3 x 0.04 mole = 0.12 mole of H₂O

But we were given 0.32 mole of H₂O and this is in excess of amount required.

This shows that Al₂O₃ is the limiting reactant

           

6 0
2 years ago
Once the sun's energy reaches the earth's atmosphere through radiation, it is circulated within the atmosphere and oceans throug
Levart [38]

B) convection

Explanation:

Once the sun's energy reaches the earth's atmosphere by radiation, it is circulated within the atmosphere and oceans through convection.

The energy of the sun on earth is moved between the ocean and the atmosphere by air around us.

  • Heat transfer in fluids is by convection.
  • It involves the actual motion of the particles of medium from one place to another due to differences in temperature and density.
  • Air close to the surface of the ocean is less dense and hot due to high temperature.
  • The air rises and it is replaced by colder air masses.
  • This exchange leads to the development of convective cells.
  • This moves the energy of the sun between the atmosphere and the ocean surface.

learn more:

Radiation brainly.com/question/1140127

#learnwithBrainly

4 0
3 years ago
How many sublevels inn the second energy level?
GREYUIT [131]

There are two subshells that are s and p, which are present in the second energy level.

The energy level can be defined as the fixed distances from the nucleus of an atom where electrons may be found. Each energy level is divided into some Subshells. These subshells are known as s-subshell, p-subshell, d-subshell, and f-subshell. This subshell contains some orbitals, these orbitals are the place where there is the maximum probability of getting the electrons. In one orbital, a maximum of two electrons can be present.

Hence, there are two subshells in the second energy level.

Learn more about subshells here:

brainly.com/question/26438203

#SPJ10

4 0
1 year ago
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