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Iteru [2.4K]
3 years ago
8

If a substance is not able to be separated by physical means but is able to be separated by chemical means, it is a(n)

Chemistry
1 answer:
fenix001 [56]3 years ago
4 0
A compound is a substance that consists of 2 or more elements chemically combined in a fixed proportion.

Compounds can be broken down ijt0 simple substances by chemical means but, elements cannot.
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Which equation describes a reduction?​
ira [324]
The answer choice is going to be B.
7 0
4 years ago
Help me please help...
Mashcka [7]

Since gravitational force is inversely proportional to the square of the separation distance between the two interacting objects, more separation distance will result in weaker gravitational forces. So as two objects are separated from each other, the force of gravitational attraction between them also decreases. -google

its probably 40

8 0
3 years ago
A hot air balloon is filled to 1250 m3 at 27 C. At what temperature will the balloon be filled to 1600 m3 if the pressure remain
SSSSS [86.1K]

Answer:

384.2 K

Explanation:

First we convert 27 °C to K:

  • 27 °C + 273.16 = 300.16 K

With the absolute temperature we can use <em>Charles' law </em>to solve this problem. This law states that at constant pressure:

  • T₁V₂=T₂V₁

Where in this case:

  • T₁ = 300.16 K
  • V₂ = 1600 m³
  • T₂ = ?
  • V₁ = 1250 m³

We input the data:

300.16 K * 1600 m³ = T₂ * 1250 m³

And solve for T₂:

T₂ = 384.2 K

7 0
3 years ago
Nitrogen H2 has :
brilliants [131]

Answer:

the bond is ionic

Explanation:

6 0
2 years ago
How many neutrons does element X have if its atomic number is 35 and its mass number is 76?
Nastasia [14]

Formula for calculation of neutrons is Mass number - atomic number, here values are given. By putting values in formula 76-35= 41. Number of neutrons 41

6 0
3 years ago
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