Answer:
Empirical: OH
Molecular: 
Explanation:
First of all, we are going to use the formula: mass = no. moles x Molar Mass And rearrange it to find No. moles: No. moles = mass/Molar Mass
Let's start with Hydrogen:
The given mass is 0.44g, and hydrogen's molar mass is 1.01, therefore the number of moles is: 0.44/1.01 = 0.4356
Now we do the same for Oxygen:
Given mass = 6.92, Molar mass of Oxygen = 16.00, No. Moles = 6.92/16.00 = 0.4325
Now we identify the smaller one (Oxygen as 0.4325 < 0.4356) and we divide both values by that number:
0.4325/0.4325 = 1
0.4356/0.4325 = 1.01
We round both to the nearest 0.2 or 0.25 (depending on what you're taught), and we get: 1 and 1.
This means that the empirical formula has one of each: OH
Now to find the molecular formula we find the relative mass of OH and divide the given mass by that:
M(OH) = 16.00+1.01 = 17.01
34.00/17.01 = 2
We now multiply both by this number to get:
Hope this helped!
The type of fossils that are found only rarely are complete skeletons
Answer: C). 50%
Explanation:
The possible genotypes of the offsprings are Gg and gg. Gg has a dominant gene G for glossy leaves and so will manifest as glossy leaves because G is dominant over g which is recessive. Fifty percent of the offsprings will have glossy leaves while the remaining fifty percent will have nonglossy leaves.
See the attached punnet square for illustration.
Answer:
Question 1.. A. Question 2.. C Question 3.. D. Question 4.. D. Question 5.. C.
Question 6.. A. Question 7.. B. Question 8.. B. Question 9.. B. Question 10.. B.
Explanation:
The answer is: <span>larger horses have longer legs.
</span>The ancestors of horses lived in the forest, where they could hide from the predators. But, with the first steppes, they could be spotted by the predators. Horses had to adapt in order to survive. Thus, their legs became longer through time so horses could run faster to escape predators.<span>
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