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alexandr1967 [171]
3 years ago
9

Many homes that are not

Chemistry
1 answer:
andrew11 [14]3 years ago
6 0

Answer:

pump that is the answer hope its right

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A student burned 0.250 g of magnesium metal in an open crucible.Oxygen from the air combined with the metal forming magnesium ox
Varvara68 [4.7K]

Answer:

0.171 grams of oxygen combined with the metal.

Explanation:

2Mg+O_2\rightarrow 2MgO

Mass of magnesium oxide produced = 0.421 g

Mass of magnesium metal used = 0.250 g

Suppose reaction completely converts the magnesium into magnesium oxide.

Mass of oxygen combined with magnesium = m

0.421 g = 0.250 g + m

m =  0.421 g - 0.250 g = 0.171 g

0.171 grams of oxygen combined with the metal.

5 0
3 years ago
What is 95°F on the Celsius scale?
GarryVolchara [31]
ºC = ( ºF - 32 ) / 1.8

ºC = 95 - 32 / 1.8

ºC = 63 / 1.8

= 35 ºC

hope this helps!

5 0
3 years ago
2. A copper wire can conduct electricity whether the wire is
Stells [14]

Answer:

Intensive

Explanation:

The electrical conductivity of a wire depends on its composition, not the length of the wire.

Hope this helps! If correct pls mark brainliest :)

7 0
3 years ago
What is oxidation in the case of electrons??
leonid [27]

Answer:

losing electrons and gaining positive charges. atoms that lose electrons were oxidized

Explanation:

6 0
2 years ago
How waves affect matter at the macroscopic and particle levels.
Rus_ich [418]
In a macroscopic object, each particles wave is being absorbed and combined with the waves of the other particles to create one wave for the entire object. Since this object is able to be seen, the wave function immediately collapses.

Anytime you possess anykind of information about the world around us, some wave, somewhere function collapses.

In short, if we can see the object, then it has no wave function.
6 0
3 years ago
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