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Genrish500 [490]

4 years ago

14

How does a large body of water, such as the ocean, influence climate?

2 answers:

almond37 [142]4 years ago

5 0

C.ocean winds can carry moisture with them and can bring rain and fog over inland areas

maw [93]4 years ago

3 0

Correct answer: Cool ocean air causes a cool climate.

Because, in the summer, the beach is less oppressive than the city.

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Is there DNA in prokaryotic cells?

Gekata [30.6K]

Answer:

Prokaryotic are unicellular organisms that lack organelles or other internal membrane-bound structures. Therefore, they do not have a nucleus, but, instead, generally have a single chromosome: a piece of circular, double-stranded DNA located in an area of the cell called the nucleotide.

Explanation:

5 0

4 years ago

Can a physical or chemical change brake down a element?

mylen [45]

Answer:

yes It can because it can be changed by any property

5 0

4 years ago

A popular classroom demonstration consists of filing notches into a new penny and soaking the penny in hydrochloric acid overnig

Ivanshal [37]

Answer:

$HCl conc=2.2M$

Explanation:

From the question we are told that:

Mass of zinc $Mass_{z_n}=2.5g$

Initial conc of HCl $HConc_1=6.0M$

Initial volume of HCl $Hvol_1=20.0mL$

Molar mass of zinc $M_{Z_n}=65.38g/mol$

Generally the equation for reaction is mathematically given by

$2HCL+Zn\implies ZnCl_2 +H_2$

Generally the equation for moles of zinc $m_{z_n}$ is mathematically given by

$m_{z_n}=\frac{Mass_{Z_n}}{M_{Z_n}}$

$m_{z_n}=\frac{2.5g}{M_{65.38}}$

$m_{z_n}=0.038molZn$

Generally the equation for moles of $m_{HCl}$ is mathematically given by

$m_{HCl}=HConc_1*Hvol_1$

$m_{HCl}=6.0M*20.0mL$

$m_{HCl}=6.0M*20.0*10^{-3}L$

$m_{HCl}=0.12\ mol\ HCl$

Generally the reacted moles of HCl $HCl_[reacted]$ is mathematically given by

Since

Zn:HCl =1:2

Therefore

$HCl_[reacted]=0.038*\frac{2}{1}$

$HCl_[reacted]=0.076mol \ HCl$

Generally the moles of HCl after Zn oxidization X is mathematically given by

$x=0.12-0.076$

$x=0.044 mol HCl$

Generally the conc of hydrochloride acid X is mathematically given by

$X=\frac{0.044}{0.020}$

$X=2.2 M Hcl$

Therefore Conc of HCl

$HCl conc=2.2M$

5 0

3 years ago

Describe one way the respiratory and nervous system work together

DiKsa [7]

<h2>♨ANSWER♥</h2>

The respiratory system supplies oxygen to the blood and removes carbon dioxide. The brain monitors respiratory volume and blood gas levels. The brain regulates respiratory rate.

<u>☆</u><u>.</u><u>.</u><u>.</u><u>hope this helps</u><u>.</u><u>.</u><u>.</u><u>☆</u>

_♡_<em>mashi</em>_♡_

7 0

2 years ago

Balance equations __Mg (s)+ __HCI(aq)—> __MgCI2(aq) + __H2(g)

Alina [70]

The balanced equation is Mg(s) + 2HCI(aq) = H2(g) + MgCI2 (aq)

6 0

4 years ago