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d1i1m1o1n [39]
2 years ago
11

Migration can best enhance the survival of individuals because it

Chemistry
1 answer:
Svet_ta [14]2 years ago
7 0

Answer:

It can enhance survival because the animals for example birds are migrating to those places for high or increasing resources

Explanation:

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umka21 [38]

Answer:

2 8 8 2 is a correct answer

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2 years ago
To pull up a bucket of water from a well, George pulled hard on a handle to wind up a rope. Which kind of energy was George appl
mote1985 [20]

b frictional energy

is the correct answer

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2 years ago
The following properties are either physical or chemical. Which one is different from the rest based on those two category? A.)
Oduvanchick [21]

Answer:

A.)physical B.)physical C.)physical D.)chemical

5 0
3 years ago
Read 2 more answers
What net ionic equation describes the reaction when these solutions are mixed?
GarryVolchara [31]
Balanced chemical reaction:
2Na₃PO₄(aq) + 3CaCl₂(aq) → 6NaCl(aq) + Ca₃(PO₄)₂(s).
Ionic reaction:
6Na⁺(aq) + 2PO₄³⁻(aq) + 3Ca²⁺(aq) + 6Cl⁻(aq) → 6Na⁺(aq) + 6Cl⁻(aq) + Ca₃(PO₄)₂(s).
Net ionic reaction: 2PO₄³⁻(aq) + 3Ca²⁺(aq) → Ca₃(PO₄)₂(s).
<span>(aq) means that substances are dissociated on cations and anions in water.
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5 0
3 years ago
3 H2 (g) + N2 (g) 2 NH3 (g)
ale4655 [162]

Answer:

Mass = 0.697 g

Explanation:

Given data:

Volume of hydrogen = 1.36 L

Mass of ammonia produced = ?

Temperature = standard = 273.15 K

Pressure = standard = 1 atm

Solution:

Chemical equation:

3H₂ + N₂       →      2NH₃

First of all we will calculate the number of moles of hydrogen:

PV  = nRT

R = general gas constant = 0.0821 atm.L/mol.K

1atm ×1.36 L = n × 0.0821 atm.L/mol.K × 273.15 K

1.36 atm.L = n × 22.43 atm.L/mol

n = 1.36 atm.L / 22.43 atm.L/mol

n = 0.061 mol

Now we will compare the moles of hydrogen and ammonia:

                 H₂         :          NH₃

                  3          :            2

                0.061     :         2/3×0.061 = 0.041

Mass of ammonia:

Mass = number of moles × molar mass

Mass = 0.041 mol × 17 g/mol

Mass = 0.697 g

4 0
3 years ago
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