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wariber [46]
2 years ago
6

Use the chart below to answer the question.

Chemistry
1 answer:
lilavasa [31]2 years ago
4 0

Answer:

Species M. furo and F. catus

Explanation:

When you look at their family name, both species have -<em>lidae </em>at the end, indicating that they are more closely related.

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the molar mass of a compound can be caucaleted by adding the standar atomic masses.

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Which characteristics help enable plants to survive on earth ?
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Plants use carbon dioxide, and put out oxygen, so it's like a cycle there. plants have roots to collect water from the soil around them. And they use the sun for energy.
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A trophic level is a number that tells you the position an organism occupies in a food chain or food pyramid.
svet-max [94.6K]

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true

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8 0
3 years ago
Commercial grade HCl solutions are typically 39.0% (by mass) HCl in water. Determine the molality of the HCl, if the solution ha
marta [7]

Molality of the solution is defined as the number of moles of a substance dissolved divided by the mass of the solvent:

Molality = number of moles / solvent mass

From the concentration of 39% (by mass) of HCl in water, we construct the following  reasoning:

in 100 g solution we have 39 g hydrochloric acid (HCl)

number of moles  = mass / molecular weight

number of moles of HCl = 39 / 36.5 = 1.07 moles

solvent (water) mass = solution mass - hydrochloric acid mass

solvent (water) mass = 100 - 39 = 61 g

Now we can determine the molality:

molality = 1.07 moles / 61 g = 0.018

8 0
3 years ago
Which of the following is a combustion reaction?
azamat

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A.NaOH+HCI+NaCI+H2O

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