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3 years ago

Who does not experience critical periods? humans animals both neither

Chemistry

2 answers:

Alexxx [7]3 years ago

7 0

Answer:

The correct answer is neither.

Explanation:

A critical period in developmental biology refers to a stage of maturation in the organism's lifespan during which the nervous system is mainly vulnerable to some kinds of environmental stimuli. If due to certain causes, the organism does not acquire the suitable stimulus at this critical period, to acquire a given trait or skill, it may become tough, eventually less successful, or even not possible, to attain some of the functions in the later stages of the life. The functions, which are essential for the survival of an organism, like vision, are mainly likely to form at these critical periods.

Rashid [163]3 years ago

4 0

I would go with neither

Hope this helps

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ANSWER FAST!!

belka [17]

Answer: 800 mL of methyl alcohol should be added to 200 ml of water to make this solution.

Explanation:

Volume of the methyl alcohol = x

Volume of water = y = 200 mL

Volume of the solution ,V = x + y

Volume percentage of solution = 80%

x = 800 mL

800 mL of methyl alcohol should be added to 200 ml of water to make this solution.

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2 years ago

How many moles are in 100.0g of gold

Mars2501 [29]

0.50769... It is just the 100g divided by golds molar mass, which is 196.97

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3 years ago

What’s the answer to this

Svetllana [295]

Answer:

B and D as well

Explanation:

All the electronic configuration of the elements of B end on s sub shell.

S energy level sub shell can hold 2 electrons and since Be, Mg, Ca Sr end in s.

We can say, they have same valence electrons, i.e 2 electrons.

6 0

2 years ago

Read 2 more answers

Draw the resonance structures for (SCN)".

Phantasy [73]

Answer : The resonance structure of $SCN$ is shown below.

Explanation :

Resonance structure : It is defined as when more than one Lewis structure can be drawn, the molecule or ion is said to have resonance.

Resonance is the concept where electrons (bonds) are delocalized over three or more atoms which cannot be depicted with one simple Lewis structure.

First we have to draw Lewis-dot structure.

Lewis-dot structure : It shows the bonding between the atoms of a molecule and it also shows the unpaired electrons present in the molecule.

In the Lewis-dot structure the valance electrons are shown by 'dot'.

The given molecule is, $SCN$

As we know that sulfur has '6' valence electrons, carbon has '6' valence electrons and nitrogen has '5' valence electron.

Therefore, the total number of valence electrons in $SCN$ = 6 + 4 + 5 = 15

According to Lewis-dot structure, there are 7 number of bonding electrons and 8 number of non-bonding electrons.

In SCN, carbon atom is the central atom and sulfur and nitrogen are the neighboring atoms.

The resonance structure of $SCN$ is shown below.

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3 years ago

When determining the density of a pure liquid or solution the temperature of the sample must be measured what is the density of

Whitepunk [10]

Idk I just need points sorry man

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3 years ago