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3 years ago

What do lysosomes and Golgi bodies have in common?

Chemistry

2 answers:

ser-zykov [4K]3 years ago

6 0

The answer is B ribosomes

Drupady [299]3 years ago

5 0

The first question would be B) they are examples of cell organelles. The second question would be A) mitochondria. Hope this helps!

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A carbon atom has six protons and six neutrons. What is its atomic number?

diamong [38]

Carbon always has six protons, as its atomic number is six. Carbon twelve would have six neutrons (six protons plus six neutrons) in the nucleus of the atom. So the atomic number is 12

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3 years ago

Emi wants to see if she can melt a marshmallow in the sun. She plans to put the marshmallow in a container that will cause it to

konstantin123 [22]

Answer:

I think emi should put it in a metal container and put it in the direction of the sun cause this will help produce heat as the sun shines on the metal container

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2 years ago

Do electrons spin in the same direction within an orbital?

tester [92]

Answer:

in an atom or molecule, no two electrons can have the same four electronic quantum numbers. As an orbital can contain a maximum of only two electrons, the two electrons must have opposing spins.

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3 years ago

What is the molar concentration (in moles/L) of a solution made with 3.744 g of Mg(NO3)2 dissolved in enough water to make 50.0

Annette [7]

Answer:

The molar concentration of a solution made with 3.744 g of Mg(NO₃)₂ dissolved in enough water to make 50.0 mL of solution is $0.5 \frac{moles}{L}$

Explanation:

Molarity or Molar Concentration is the number of moles of solute that are dissolved in a certain volume.

The molarity of a solution is calculated by dividing the moles of the solute by the volume of the solution:

$molarity=\frac{number of moles}{volume}$

In this case:

Mg: 24.3 g/mole
N: 14 g/mole
O: 16 g/mole

So, the molar mass of Mg(NO₃)₂ is:

Mg(NO₃)₂= 24.3 g/mole + 2*(14 g/mole + 3*16 g/mole)= 148.3 g/mole

So, if you have 3.744 g of Mg(NO₃)₂, you can apply the following rule of three: if 148.3 grams of Mg(NO₃)₂ are present in 1 mole, 3.744 grams in how many moles are present?

$moles=\frac{3.744 grams*1mole}{148.3 grams}$

moles= 0.025

Then you have:

number of moles=0.025
volume= 50 mL= 0.05 L (being 1,000 mL= 1 L)

Replacing in the definition of molarity:

$molarity=\frac{0.025 moles}{0.05 L}$

you get:

$molarity=0.5 \frac{moles}{L}$

The molar concentration of a solution made with 3.744 g of Mg(NO₃)₂ dissolved in enough water to make 50.0 mL of solution is $0.5 \frac{moles}{L}$

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3 years ago

For the following reaction, identify the substances being oxidized and reduced (including their oxidation numbers), the oxidizin

V125BC [204]

Si is reduced/Oxidizing reagent Mg is oxidized/reducing reagent

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4 years ago