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Alexus [3.1K]
3 years ago
13

Certain bacteria live in plant roots and receive sugars from the plants. The bacteria provide a source of useful nitrogen for th

e plants. This best describes which type of relationship?
A: Parasitism
B: Competition
C: Mutualism
D: Predation
Chemistry
2 answers:
schepotkina [342]3 years ago
8 0

Answer:

Hope that helps!

Explanation:

Mutualism. They work together and both gain.

miss Akunina [59]3 years ago
4 0

Answer:

c

Explanation:

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B

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molecular mass of B is 28

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When people walked on the Moon, they found that they could jump higher than they could back on Earth. Why is this true?
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Determine the empirical formula of a compound that contains 30.45% nitrogen and 69.55% oxygen
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All of the following are conductors of electricity except
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Realiza los cálculos para determinar la cantidad de KOH 90%, que se necesita para preparar 100 ml de solución 1N.
attashe74 [19]

Answer:

6.23 KOH 90% son necesarios

Explanation:

Una solución 1N de KOH requiere 1equivalente (En KOH, 1eq = 1mol) por cada litro de solución.

Para responder esta pregunta se requiere hallar los equivalentes = Moles de KOH para preparar 100mL = 0.100L de una solución 1N. Haciendo uso de la masa molar de KOH y del porcentaje de pureza del KOH se pueden calcular los gramos requeridos para preparar la solución así:

<em>Equivalentes KOH:</em>

0.100L * (1eq / L) = 0.100eq = 0.100moles

<em>Gramos KOH -Masa molar: 56.1056g/mol-:</em>

0.100moles * (56.1056g/mol) = 5.61 KOH se requieren

<em>KOH 90%:</em>

5.61g KOH * (100g KOH 90% / 90g KOH) =

<h3>6.23 KOH 90% son necesarios</h3>
8 0
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