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faust18 [17]
3 years ago
13

When more organisms move into an ecosystem and use more resources, the result is

Chemistry
2 answers:
Oxana [17]3 years ago
8 0
The answer would be, "A", "Overpopulation". 
Aneli [31]3 years ago
3 0
A) overpopulation :)
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Suppose you are titrating a sulfuric acid solution of unknown concentration with a sodium hydroxide solution according to the eq
Inga [223]

Answer:

M_{acid}=0.0444M

Explanation:

Hello,

In this case, for the given reaction:

H _2 S O _4 + 2 N a O H \rightarrow 2 _H 2 O + N a _2 S O_ 4

We find a 1:2 molar ratio between the acid and the base respectively, for that reason, at the equivalence point we find:

2*n_{acid}=n_{base}

That in terms of concentrations and volumes we can compute the concentration of the acid solution:

2*M_{acid}V_{acid}=M_{base}V_{base}\\\\M_{acid}=\frac{M_{base}V_{base}}{2*V_{acid}}=\frac{0.697M*28.07mL}{2*220.1mL}\\ \\M_{acid}=0.0444M

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5 0
3 years ago
Uranium has an atomic number of 92. How many neutrons does U-238 have?
LekaFEV [45]

Answer:

146 neutrons.

Explanation:

8 0
3 years ago
How many moles of carbon are in 7.87x10^7 carbon molecules?
zaharov [31]
There are 6.022*10^23 molecules in 1 mole of carbon
So how many will moles will be 7.87*20^7?
Let the required number of moles be ‘x’.
1 mole ———6.022*10^23
x moles———7.87*10^7
(Cross multiplication)
x=7.87*10^7/6.022*10^23
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6 0
3 years ago
What condition must be satisfied by a balanced chemical equation?
Zolol [24]

Answer:

The chemical equation needs to be balanced so that it follows the law of conservation of mass. A balanced chemical equation occurs when the number of the different atoms of elements in the reactants side is equal to that of the products side. Balancing chemical equations is a process of trial and error.

Explanation:

8 0
3 years ago
Where is absolute zero on the three temperature scales?
xenn [34]
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5 0
3 years ago
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