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alexandr1967 [171]
2 years ago
12

The outside layer of cells on the top and bottom of a leaf

Chemistry
1 answer:
katovenus [111]2 years ago
8 0

Answer:

I think it would be the Stomata and the Lower Epidermis

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50 grams of water is placed into a beaker the mass of the beaker is now 115 grams what is the mass of the empty beaker
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65 Grams is the mass of the beaker because you just take the mass   of Water + Beaker and take the water away now you have the mass of the beaker
6 0
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Can you use molecular orbital theory to explain why fluorine is such a highly reactive gas?
vivado [14]
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olganol [36]

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Explanation:

8 0
2 years ago
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Based on the equation, how many grams of Br2 are required to react completely with 36.2 grams of AlCl3?
s2008m [1.1K]

Answer:

65.08 g.

Explanation:

  • For the reaction, the balanced equation is:

<em>2AlCl₃ + 3Br₂ → 2AlBr₃ + 3Cl₂,</em>

2.0 mole of AlCl₃ reacts with 3.0 mole of Br₂ to produce 2.0 mole of AlBr₃ and 3.0 mole of Cl₂.

  • Firstly, we need to calculate the no. of moles of 36.2 grams of AlCl₃:

<em>n = mass/molar mass</em> = (36.2 g)/(133.34 g/mol) = <em>0.2715 mol.</em>

<u><em>Using cross multiplication:</em></u>

2.0 mole of AlCl₃ reacts with → 3.0 mole of Br₂, from the stichiometry.

0.2715 mol of AlCl₃ reacts with → ??? mole of Br₂.

∴ The no. of moles of Br₂ reacts completely with 0.2715 mol (36.2 g) of AlCl₃  = (0.2715 mol)(3.0 mole)/(2.0 mole) = 0.4072 mol.

<em>∴ The mass of Br₂ reacts completely with 0.2715 mol (36.2 g) of AlCl₃ = no. of moles of Br₂ x molar mass</em> = (0.4072 mol)(159.808 g/mol ) = <em>65.08 g.</em>

4 0
3 years ago
How many electrons can be held in the third orbital?.
Evgen [1.6K]
32 electrons. as the orbitals get father away from the nucleus, they hold more electrons.
6 0
2 years ago
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