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Art [367]
3 years ago
14

Hurry 20pts

Chemistry
1 answer:
PSYCHO15rus [73]3 years ago
3 0

Answer:

Schaus Swallowtail Butterfly

Explanation:

They eat food plants, torchwood and wild lime. And their an endangered species in Florida.

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The number of grams of H2 in 1470 mL of H2 gas. ​
Lorico [155]

Answer:

0.1313 g.

Explanation:

  • It is known that at STP, 1.0 mole of ideal gas occupies 22.4 L.
  • Suppose that hydrogen behaves ideally and at STP conditions.

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

1.0 mol of hydrogen occupies → 22.4 L.

??? mol of hydrogen occupies → 1.47 L.

∴ The no. of moles of hydrogen that occupies 1.47 L = (1.0 mol)(1.47 L)/(22.4 L) = 6.563 x 10⁻² mol.

  • Now, we can get the no. of grams of hydrogen in 6.563 x 10⁻² mol:

<em>The no. of grams of hydrogen = no. of hydrogen moles x molar mass of hydrogen</em> = (6.563 x 10⁻² mol)(2.0 g/mol) = <em>0.1313 g.</em>

5 0
3 years ago
Calculate the number of grams in magnesium present in 25 g of magnesium phosphate
olga55 [171]

you can google it and it pops up right away

4 0
3 years ago
Read 2 more answers
Lattice energy is an estimate bond of the bond:
lidiya [134]

Answer:

Strength

Explanation:

Lattice energy is the energy needed to remove one mole of ionic substance to its gaseous ion.

The lattice energy is used to determine the strength of a substance.

  • Lattice energy increases as the size of an ion decreases.
  • It decreases as the ion size increases.
  • This quantity is often determined using electrostatics method in the laboratory
  • The lattice energy is used to break an ionic solid to form a gaseous compound.
4 0
2 years ago
Read 2 more answers
What processes take place within all cells in order to maintain homeostasis?
NISA [10]

Answer:

Explanation: obtain and use energy, make new cells, exchange materials, eliminate wastes

6 0
3 years ago
Read 2 more answers
Calculate the molarity of a solution containing 5.6 mol of sodium hydroxide dissolved in 2.1 L of water
yKpoI14uk [10]

2.0 MOL is the correct answer I believe


5 0
3 years ago
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