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balandron [24]
3 years ago
9

Please help taking a test!!!!!

Biology
1 answer:
MatroZZZ [7]3 years ago
6 0
Limestone is the correct answer
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The process of condensation is occurring at what number?
AnnyKZ [126]
The correct answer is 9
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What does a population graph with an s-curve show
JulijaS [17]

It’s called densitydependent. It slowly increases then reaches an exponential growth rate and then declines into the negative until it gets to zero where it stabilizes

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3 years ago
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A student is collecting the gas produced
marissa [1.9K]

Answer:

0.062 moles of hydrogen gas

Explanation:

We must first out down the reaction equation before we can attempt to solve the problem.

Mg(s) + 2HCl(aq) ----> MgCl2(aq) + H2(g)

Next we obtain the number of moles in 1.5 g of magnesium metal from;

Molar mass of magnesium = 24.3 gmol-1

Number of moles of magnesium= mass/molar mass = 1.5g/24.3gmol-1 = 0.062 moles

From the reaction equation;

1 mole of magnesium metal yields 1 mole of hydrogen gas

0.062 moles of magnesium metal will yield 0.062 moles of hydrogen gas

Therefore, reaction of 1.5g of magnesium metal with excess hydrochloric acid will yield 0.062 moles of hydrogen gas.

7 0
3 years ago
Which statement best describes how a major change in size of one population affects an ecosystem
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If one population, such as lets say a hawk decreases the niche, or the importance of an animal or its effect in the ecosystem, on the mice. the mice population increases. or it can be lets say plants and bugs, the lady bug goes away and the other bugs eat the plant
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