2 years ago

Why are meerkats considered to be part of an ecosystem

Chemistry

1 answer:

ladessa [460]2 years ago

5 0

They are living organisms in the ecosystem and make up part of the food chain.

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The following information is to be used for the next 2 questions. In order to analyze for Mg and Ca, a 24-hour urine sample was

Ainat [17]

Answer:

Explanation:

From the given information:

The concentration of metal ions are:

$[Ca^{2+}]= \dfrac{0.003474 \ M \times 20.49 \ mL}{10.0 \ mL}$

$[Ca^{2+}]=0.007118 \ M$

$[Mg^2+] = \dfrac{0.003474 \ M\times (26.23 - 20.49 )mL}{10.0 \ mL}$

$=0.001994 \ M$

Mass of Ca²⁺ in 2.00 L urine sample is:

$= 2.00 L \times 0.001994 \dfrac{mol}{L} \times \dfrac{40.08 \ g}{1 \ mol}$

= 0.1598 g

Mass of Ca²⁺ = 159.0 mg

Mass of Mg²⁺ in 2.00 L urine sample is:

$= 2.00 L \times 0.007118 \dfrac{mol}{L} \times \dfrac{24.31 \ g}{1 \ mol}$

= 0.3461 g

Mass of Mg²⁺ = 346.1 mg

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3 years ago

Which of the following is an acid? Be(OH)2 HCl LiBr NH3

Lyrx [107]

Answer:

HCl is the correct answer

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2 years ago

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What is the molecular geometry of c atom in ch3nh2

victus00 [196]

Answer:

compound is sp3.

Explanation:

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3 years ago

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A runner travels at a constant speed of 4 m/s. What happens to the velocity of the runner when the runner changes direction?

ANTONII [103]

Answer:

4m/s in the direction of the turn

Explanation:

The velocity of an object is the rate of change of its position with respect to a frame of reference.

Assuming the runner stays the same speed as he turns, his velocity will be 4m/s in the speed he turns.

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2 years ago

i have a crossword thing that i got from school and one of the clues is: If there are two equal and opposite forces on something

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I would assume the answer is called attractive

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