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maria [59]
3 years ago
12

Our Solar System consists of our star, the Sun, and its orbiting planets (including Earth), along with numerous moons, asteroids

, comet
material, rocks, and dust. However, our Solar System is only part of space. Place the following in order from biggest to smallest.

A) Galaxy, Universe, Solar System, Star, Planet

B) Universe, Solar System, Galaxy, Planet, Star

C) Solar System, Universe, Galaxy, Star, Planet

D) Universe, Galaxy, Solar System, Star, Planet
Chemistry
2 answers:
adoni [48]3 years ago
7 0

Answer:

D

Explanation:

Universe consits of galaxies, galaxies consit of solar systems, and solar systems consist of planets

dlinn [17]3 years ago
4 0
Answer: The answer would be B) Universe, Galaxy, Solar System,Planet Star

Explanation: The universe consists of all of these states of matter, The Milky Way itself is a galaxy,a solar system is made of planets and stars are tiny balls of gas!

The way the answer is correct and presented is because they are in order by size! For example the universe is infinite our solar system is only made of planets so that would be likely a galaxy is just made up of stars a planet is just a ball of gas with matter or something inside of it and a star just a tiny ball of gas made dust
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When copper(II) oxide is heated with hydrogen gas, water and copper metal is produced. What mass of copper can be obtained if 32
Vadim26 [7]

Answer:

25.5 g

Explanation:

First, you will need a balanced chemical equation

CuO  +  H₂  ==>  H₂O  +  Cu

From the equation above, we can see that for every 1 mole of CuO (copper(II) oxide), 1 mole of Cu (copper) is produced.  

Convert grams of CuO to moles.  You should get 0.402 mol.  Now with the relationship established above, you can see that you should ideally get 0.402 mol.  Convert this to grams.  Your answer should be 25.5 g.

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How many grams of NaOH are in a 225.0 mL sample of a 2.5 M solution of NaOH? (Molar mass of NaOH is 40.0 g/mol)
ladessa [460]

Answer

Approx. 4 g of NaOH.

Explanation:

Concentration

 

=

 

Moles

Volume of solution

Number of moles

 

=

 

Volume

×

concentration  

=

0.250

⋅

L

×

0.400

⋅

m

o

l

⋅

L

−

1

=

 

0.100

⋅

m

o

l

Mass of sodium hydroxide

 

=

 

0.100

⋅

m

o

l

×

40.0

⋅

g

⋅

m

o

l

−

1

=

?

?

⋅

g

Explanation:

6 0
3 years ago
How many molecules are there in 45.0 grams of CH ?
Sonbull [250]

Answer:

There are 1.8021 ⋅ 1024 molecules of CH4 in 48 grams of CH4. To answer this question, you must understand how to convert grams of a molecule into the number of molecules. To do this, you have to utilize the concepts of moles and molar mass. A mole is just a unit of measurement. Avogadro's number is equal to 6.022 ⋅1023 molecules/mole. i think please dont complain to me if its wrong im sorry

Explanation:

8 0
3 years ago
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