ice because it can melt back to water
Molecular solids do not ionize into several particles while ionic solids do (to some extent). Since Freezing-point depression is a colligative property, caused by the presence of particles of non-volatile solute (and not on their chemical nature), ionic solids have a multiplicative effect on the change in temperature per unit - i.e. the van't hoff constant, i<span>.
F</span>P depression equation: <span>ΔT=i∗m∗<span>Kb
</span></span>Molecular solids have i=1 always, and ionic solids <span>i≥2.
</span><span>The formula to find the molar mass:
</span>M=<span><span>i∗m∗<span>Kb/</span></span><span>k<span>g <span>solvent</span></span>∗ ΔT</span></span>
Bears are omnivores (and scavengers), meaning they eat both plants and animals.
it can be both a primary consumer (if it eats plants) and secondary & tertiary consumers (if it eats a plant-eating animal). so it depends on what it eats.
Answer:
Collecting residue samples.
Explanation:
All the other given options are equally important on the exploration of a bomb aftermath.
The most important task is the collection of residue samples since it needs highly skilled personel to collect accurate samples for later on analysis.
Identification of meaningful collection areas is a technical skill that requires the most experienced team memebers.
If one wants to make a molar quantity of aluminum oxide from aluminum in the laboratory, the amount of aluminum needed would be 53.96 grams.
<h3>Stoichiometric problem</h3>
Aluminum and oxygen react to form aluminum oxide according to the following equation:
From the balanced equation, the mole ratio of aluminum that reacts to the aluminum oxide that is produced is 2:1.
Now, we want to produce just a molar of aluminum oxide, this means 2 moles of aluminum will be required.
Recall that: mass = mole x molar mass
The molar mass of aluminum is 26.98 g/mol.
Mass of 2 moles aluminum = 2 x 26.98
= 53.96 grams
Thus, the amount of aluminum that one would need to produce a molar aluminum oxide in the laboratory is 53.96 grams.
More on stoichiometric problems can be found here: brainly.com/question/14465605
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