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valkas [14]
2 years ago
8

What happened when we made the predator(snake) population larger?

Chemistry
1 answer:
jeka57 [31]2 years ago
3 0

Answer:

The rabbit prey population will decrease.

Explanation:

More predators are there to eat the prey

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Which substance has a high melting point and conducts electricity in the liquid phase
ELEN [110]
It is true that substances that have a high melting point and conduct electricity in the liquid phase are ionic substances, and if one of your options is NaCl, then that is the correct answer.
8 0
3 years ago
Read 2 more answers
What mass of solute should you measure out in order to make 1,000 mL of a 0.3 M solution of magnesium phosphate Mg3(PO4)2?
vivado [14]

Hey there !

Molecular Weight: 262.86 g/mol

Volume in liters : 1,000 mL => 1,000 / 1000 => 1 L

Number of moles of solution :

number of moles = volume x molarity

number of moles = 1 x 0.3  => 0.3 moles

Therefore:

1 mole Mg₃(PO₄)₂ ------------------- 262.86 g

0.3 moles ----------------------------- mass of Mg₃(PO₄)₂  ??

mass of Mg₃(PO₄)₂ = 0.3 x 262.86 / 1

mass of Mg(PO₄)₂ => 78.858 g

Hope this helps!

7 0
2 years ago
What is the equilibrium expression for the reaction below?
Mariana [72]

Answer:

A. K=\frac{[N_2O]^2}{[N_2]^2[O_2]}

Explanation:

Hello there!

In this case, for us to figure out the appropriate equilibrium expression, it will be firstly necessary for us to recall the law of conservation of mass which states that the equilibrium constant of an equilibrium chemical reaction is written by dividing the products and reactants and including the stoichiometric coefficients as exponents. In such a way, for the given reaction, we will have:

K=\frac{[N_2O]^2}{[N_2]^2[O_2]}

As N2O is the product whereas N2 and O2 are reactants; thus, the equilibrium expression will be A.

Regards!

6 0
2 years ago
For an alloy that consists of 33.5 wt% Pb and 66.5 wt% Sn, what is the composition (a) of Pb (in at%), and (b) of Sn (in at%)? T
Tju [1.3M]

Answer:

Pb: 22.4 at%

Sn: 77.6 at%

Explanation:

It is possible to find at% of Pb and Sn converting mass in moles using molar mass assuming a basis of 100g, thus:

Pb: 33.5g × (1mol / 207.2g) = <em>0.1617mol</em>

Sn: 66.5g × (1mol / 118.7g) = <em>0.5602mol</em>

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Total moles: 0.1617mol + 0.5602mol = 0.7219mol

Composition in at%:

Pb: 0.1617mol / 0.7219mol × 100 = <em>22.4 at%</em>

Sn: 0.5602mol / 0.7219mol × 100 = <em>77.6 at%</em>

<em />

I hope it helps!

5 0
3 years ago
Complete the complex dimensional analysis problem to determine the price of one atom of aluminum. A 20cm x 20cm square of alumin
mixer [17]

$8.09

Because you multiply and subtract to get the answer

7 0
3 years ago
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