This is an inherited characteristic that increases an organism's chance of survival.

Chemistry

1 answer:

Bess [88]3 years ago

8 0

Answer:

Adaptation

Explanation:

A biological adaptation is an anatomical structure, physiological process or behavioral trait of an organism that has evolved over a period of time by the process of natural selection such that it increases the expected long-term reproductive success of the organism.

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An aqueous solution containing 17.5 g of an unknown molecular compound in 100.g water was found to have a freezing point of-1.8°

Zigmanuir [339]

Answer:

The answer to your question is 178.6 g

Explanation:

Data

ΔT = 1.8 °C

mass = 17.5 g

mass of water = 100 g

Kc = 1.86

Process

1.- Calculate the molality using the following formula

ΔTc = mKc

solve for m

m = ΔTc/Kc

substitution

m = 1.8/1.86

result

m = 0.968

2.- Calculate the number of moles

m = # of moles/kg of solvent

kg of solvent = 0.1 kg

# of moles = m x kg of solvent

# of moles = 0.968 x 0.1

# of moles = 0.0968

3.- Calculate the molar mass

x g molar mass --------------------- 1 mol

17.5 g --------------------- 0.0968 moles

x = (1 x 17.5)/0.0968

x = 178.6 g

4 0

3 years ago

The mass of a solid substance is 21.1164 g. If the volume of

GuDViN [60]

Answer:

The density of the substance is 1.0611 $\frac{g}{cm^{3} }$

Explanation:

The density of a substance is a characteristic property that matter, whether solids, liquids or gases, has to be compressed in a given space, that is, it allows us to measure the amount of mass in a certain volume of a substance.

Density is expressed as follows:

$density=\frac{mass}{volume}$