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KIM [24]
3 years ago
6

Look at the food pyramid below.

Chemistry
2 answers:
Alborosie3 years ago
4 0

Answer:

1 - producer, 2 - primary consumer, 3 - secondary consumer, 4 - tertiary consumer

Explanation:

Nata [24]3 years ago
4 0

Answer:

#1 Producers

#2 Primary consumer

#3 Secondary consumer

#4 Tertiary consumer

Explanation:

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A van moves with a constant speed
Kitty [74]

Answer:

1.5 hours or 90 minutes

Explanation:

Velocity = d/t

V = 64 mi / hour or 96 mi / 9 min OR 16 mi / 15 min

D = 96 miles

Velocity * Time = Distance

Time = Distance / Velocity

T = 96 mi / 64 mi / hour

96 / 64 = 1.5 mi per hour

T = 1.5 hours or 90 minutes

4 0
2 years ago
Match the compounds as organic (O) or inorganic (I).
SashulF [63]
H2O2(I)
C6H6(O)
CO2(I)
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HNO3(I)
7 0
2 years ago
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Name two compounds with more exothermic lattice energies than scandium oxide and justify your choice.
N76 [4]

Answer:

1 . Al_2O_3

2. TiO_2

Explanation:

The more stable the ionic compound, the more is it lattice energy.

  • The more the charge on the cation and the anion, the greater is the lattice energy.
  • The less the size of the cation and the anion, the greater is the lattice energy.

Scandium oxide (Sc_2O_3) is an oxide in which Sc^{3+} behaves as cation and O^{2-} behaves as anion.

The compounds which has higher lattice energy than scandium oxide are:

1 . Al_2O_3

This is because the charge are same on the cation and the anion as in the case of the Scandium oxide but the size of the cation Al^{3+} is smaller than Sc^{3+}. Thus, this corresponds to higher lattice energy.

2. TiO_2

This is because the charge on the cation Ti^{4+} is greater than that of Sc^{3+} and also the size of the cation Ti^{4+} is smaller than Sc^{3+}. Thus, this corresponds to higher lattice energy.

3 0
3 years ago
How many moles are in 12.5 g ammonium chloride
77julia77 [94]

Answer:

0.233682161601125

Explanation:

3 0
2 years ago
Which organelle is the control center of the cell?
Ivenika [448]

Answer:

nucleus

Explanation:

6 0
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