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3 years ago

If the outer energy level of the atom is full, it ________ react readily with other atoms.

1 answer:

5 0

If the outer energy level of the atom is , it does not react readily with other atoms.

The atom has it's outer energy level FULL, it doesn't need anymore electrons; so it's not going to bond with any atoms. It needs no more valence electrons to fill its outermost shell.

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Many people believe that vitamins and minerals are essentially the same type of nutrient but they are not: one is an organic mol

Minchanka [31]

Answer:

The correct statements are listed below.

Explanation:

Vitamins are organic and minerals are inorganic.

Organic compounds comes from living things.Vitamins generally exist as organic compounds for example all the vitamin such as vitamin A, Thiamine,riboflavin,biotin,pyridoxin,vitamin c,vitamin E, vitamin K exist as organic compounds.

On the other hand minerals are found in inorganic form for example nitrogen is found as nitrate and nitrite,phosphorus is found as phosphate group,phosphoric acid.

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2 years ago

Which of the following correctly shows one path that energy would flow through this ecosystem?

natulia [17]

Answer: g

Explanation:

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2 years ago

1. How many different kinds of cells can<br> you see in this picture? Describe at least 2

romanna [79]

There is no picture, though.

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3 years ago

When a living organism dies, it stops taking in new carbon. Thus, as the radioactive carbon-14 decays, the ratio of carbon-12 to

Alexxandr [17]

Answer: The fossil is 11459 years old.

Explanation:

Half-life of carbon-14 = 5700 years

First we have to calculate the rate constant, we use the formula :

$k=\frac{0.693}{5700\text{years}}$

$k=1.21\times 10^{-4}\text{years}^{-1}$

Now we have to calculate the age of the sample:

Expression for rate law for first order kinetics is given by:

$t=\frac{2.303}{k}\log\frac{a}{a-x}$

where,

k = rate constant = $1.21\times 10^{-4}\text{years}^{-1}
t = age of sample = ?
a = let initial amount of the reactant = 100 g
x = amount decayed = 75 g
a - x = amount left after decay process = 100 - 75 = 25 g Now put all the given values in above equation, we get
[tex]t==\frac{2.303}{1.21\times 10^{-4}}\log\frac{100}{25}$

$t=11459years$

The fossil is 11459 years old.

4 0

2 years ago

How are mean and median alike?how are they different?

Vlada [557]

Answer:

Mean is the average you'll get when you add all your numbers then divide by the number of numbers you have. On the opposite side, median is the middle number within your list of numbers. If there isn't a middle number, take the two middle numbers and add them. Now, for how they are alike, I'm not so sure :'), but my closest guess would be they are fairly close together.

Sorry it's so long, hope I helped you :')

Explanation:

7 0

3 years ago