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lesya [120]
3 years ago
10

PLSSSSSS HELPPPPPP?????

Chemistry
2 answers:
Lerok [7]3 years ago
6 0

Answer:

<u>I think the answer for this is C) lizard and snake</u>

Semenov [28]3 years ago
3 0

Answer:

Lizard and Snake

Explanation:

Since the Lizard eats the grasshopper (primary comsumer) the lizard is a secondary comsumer. Since the sanke eats the mouse (primary comsumer) the snake is a secondary comsumer

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Consider the following reaction.
Ivan

Answer:

162 g Fe₂O₃

Explanation:

To find the mass of Fe₂O₃, you need to (1) convert grams C to moles C (via molar mass from periodic table), then (2) convert moles C to moles Fe₂O₃ (via mole-to-mole ratio from reaction coefficients), and then (3) convert moles Fe₂O₃ to grams (via molar mass). It is important to arrange the ratios/conversions in a way that allows for the cancellation of units. The final answer should have 3 sig figs to reflect the given value.

Molar Mass (C): 12.011 g/mol

2 Fe₂O₃(s) + 3 C(s) ---> 4 Fe(s) + 3 CO₂(g)

Molar Mass (Fe₂O₃): 2(55.845 g/mol) + 3(15.998 g/mol)

Molar Mass (Fe₂O₃): 159.684 g/mol

18.3 g C           1 mole            2 moles Fe₂O₃          159.684 g
--------------  x  ----------------  x  -------------------------  x  -----------------  = 162 g Fe₂O₃
                        12.011 g              3 moles C                 1 mole

5 0
2 years ago
I need to know the answers to this to make sure I am right ​
oee [108]
The answer is C............
3 0
3 years ago
What was the 'elixir of life' ​
4vir4ik [10]
A magical or medicinal potion/solution
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What is the full form of alcl3​
Likurg_2 [28]

Answer:

Aluminum Chloride

Explanation:

8 0
3 years ago
Write 10,847,100 in Scientific Notation with 4 significant figures.
masha68 [24]

Answer:

The number 10,847,100 in Scientific Notation is 1.0847x10^{7}

Explanation:

Scientific notation is an easy form to write long numbers and it is commonly used in the scientific field. To write a long number in a shorter way it is necessary to 'move' the decimal point to the left the number of positions that are necessary until you get a unit. Then you write the number and multiplied it by 10 raised to the number of positions you moved the decimal point. In this case, it is necessary to move the decimal point 7 positions so, we multiply the number by 10 raised to 7.

5 0
3 years ago
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