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Gwar [14]
2 years ago
11

The Case of the Missing Mass: Students have completed the experiment of combining vinegar and baking soda. They notice that thei

r beginning mass in the video does not match the ending one. Use the equation(below) and the Law of Conservation of Mass to explain why the students have NOT destroyed atoms in their experiment. This is the chemical equation for the experiment:

Biology
2 answers:
enot [183]2 years ago
8 0
The law of conservation of mass states that atoms cannot be created not destroyed, so they could not have destroyed it. This means that the experiment had to be open (which means there is no barrier that keeps all the solution in, like a plug or a bag). When the liquid in the equation turned into gas, the gas floated away from the solution, making the ending mass smaller than the beginning.
In-s [12.5K]2 years ago
5 0

Answer:

google

Explanation:

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3 years ago
This food web describes feeding relationships in a tropical community.
zzz [600]

Answer:

The answer is C. An increase in competition for sunlight and space among plants

8 0
2 years ago
A Drosophila fruit fly cell with 2N = 8 chromosomes-two of each kind—is called a
ELEN [110]

Answer: allele/ gene / homologous

Explanation:

5 0
3 years ago
Suppose a population is carrying a condition controlled by two alleles: P (dominant) and p (recessive). Only homozygous individu
Virty [35]

<span>The answer is B. 72.25 percent.

The Hardy-Weinberg principle can be used:</span>

<em>p² + 2pq + q² = 1 </em>and <em>p + q = 1</em>

where <em>p</em> and <em>q</em> are the frequencies of the alleles, and <em>p²</em>, <em>q²</em> and <em>2pq</em> are the frequencies of the genotypes.

<span>The <em>p</em> allele (<em>q</em>) is found in 15% of the population:
q = 15% = 15/100
Thus, q = </span><span>0.15

To calculate the <em>P</em> allele frequency (<em>p</em>), the formula <em>p + q = 1</em> can be used:
If p + q = 1, then p = 1 - q
p = 1 - 0.15
Thus, </span><span>p = 0.85

Knowing the frequency of the <em>P</em> allele (<em>p</em>), it is easy to determine the frequency of the <em>PP </em>genotype (<em>p²</em>):
p² = 0.85² = 0.7225

Expressed in percentage, p² = 72.25%.</span>

7 0
3 years ago
Which of the following explains why food is often better when it is whole?
Ierofanga [76]

Answer:

the 3ed one hope this helped

Explanation:

7 0
2 years ago
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