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Blizzard [7]
3 years ago
9

What type of reaction is 4Na + O2 --> 2Na2O?

Chemistry
1 answer:
sveticcg [70]3 years ago
3 0

Answer:

Synthesis is the Chemical reaction

                                                     

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Inner planets usually have...
BigorU [14]

Answer:

Shorter revolution times, Made of rock, No rings

Explanation:

want more facts? Here u go!

The four planets closest to the Sun—Mercury, Venus, Earth, and Mars—are the inner planets or terrestrial planets (Figure below). They are similar to Earth. All are solid, dense, and rocky. None of the inner planets has rings. Compared to the outer planets, the inner planets are small. They have shorter orbits around the Sun and they spin more slowly. Venus spins backward and spins the slowest of all the planets.

All of the inner planets were geologically active at one time. They are all made of cooled igneous rock with inner iron cores. Earth has one big, round moon, while Mars has two very small, irregular moons. Mercury and Venus do not have moons.

6 0
2 years ago
What type of system is best used to observe conservation of matter because all of the mass stays in one place?
melamori03 [73]

Answer:

Hello, There!

<em>What type of system is best used to observe conservation of matter because all of the mass stays in one place?</em>

<em />

A closed system Would be The Correct Answer!

Explanation:

In a closed system, matter does not enter or leave And it Says In one place.

Therefore, making A Closed System the Correct Answer.

7 0
3 years ago
Which of these solutes raises the boiling point of water the most?
VMariaS [17]
Raising of the boiling point is a colligative property. That means that it depends on the number of particles dissolved. The greater the number of particles the greater the increase in the boiling point. So, you can compare the effect of these solutes in the increase of the boiling point by writing the chemical equations and comparing the number of particles dissolved: 1)ionic lithium chloride, LiCl(s) --> Li(+) + Cl (-) => 2 ions; 2) ionic sodium chloride, NaCl(s) --> Na(+) + Cl(-) => 2 ions; 3) molecular sucrose, C12H22O11 (s) ---> C12H22O11(aq) => 1 molecule; 4) ionic phosphate, Na3PO4 --> 3Na(+) + PO4 (3-) => 4 ions; 5) ionic magnesium bromide, MgBr2 --> Mg(2+) + 2 Br(-) => 3 ions. <span>So, ionic phosphate produces the greatest number of particles and it will cause the greatest increase of the boiling point.</span><span />
4 0
3 years ago
A compound that consists of atoms of nonmetals that are held together by covalent bonds are.
rusak2 [61]

Answer:

The answer is molecule

Explanation:

4 0
2 years ago
Read 2 more answers
What is the purpose of the prefixes in the metric system?
Helen [10]
<span>Prefixes are used in the metric system to indicate smaller or larger measurements</span>
4 0
3 years ago
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