Answer:
0.062 moles of hydrogen gas
Explanation:
We must first out down the reaction equation before we can attempt to solve the problem.
Mg(s) + 2HCl(aq) ----> MgCl2(aq) + H2(g)
Next we obtain the number of moles in 1.5 g of magnesium metal from;
Molar mass of magnesium = 24.3 gmol-1
Number of moles of magnesium= mass/molar mass = 1.5g/24.3gmol-1 = 0.062 moles
From the reaction equation;
1 mole of magnesium metal yields 1 mole of hydrogen gas
0.062 moles of magnesium metal will yield 0.062 moles of hydrogen gas
Therefore, reaction of 1.5g of magnesium metal with excess hydrochloric acid will yield 0.062 moles of hydrogen gas.
The nucleotide variation is obtained by comparing nucleotide sequence between individuals between individuals of a particular population. If genetic variability is 0 % then the number of alleles would be 1.
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What is genetic variability?</h3>
Genetic variability is the evolutionary process and development of new species. Genetic variability describes the dissimilarities such as brown eyes, blue eyes that happen naturally when DNA is altered.
Genetic variability varies in population. Genetic variability describes the tendency at which traits in a population may vary.
Gene variation refers to a differences in the genetic makeup of the individual. Genetic variation is a important process of natural selection and biological evolution.
Therefore, The nucleotide variation is obtained by comparing nucleotide sequence between individuals between individuals of a particular population. If genetic variability is 0 % then the number of alleles would be 1.
To learn more about genetic variation, refer to the link :
brainly.com/question/848479
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Even the cell membrane is like the cell wall its flexible and lets certain things in and certain things out.
The age group she does fit in is Infancy
<span>Basically, the body needs to know what it is defending against. Your body can still (usually) fight off infection, even without an immunization, but it takes longer. Basically, your body creates cells with a receptor for a specific disease. When this cell finds the disease it is programmed for, it will send out signals to the "killer" cells to come and kill it. If your body doesn't have the "seeker" cells, it can't fight off the infection until it does. The opposite end are autoimmune diseases, where your immune system starts attacking itself.
brainlest answer</span>
