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finlep [7]
3 years ago
8

Which is a substance that could be found in air , water , or soil that is harmful to humans or animals?

Chemistry
2 answers:
aleksklad [387]3 years ago
3 0

Answer: Pollutant

Explanation:

CaHeK987 [17]3 years ago
3 0

Answer:

Explanation:

The substance that could be found in air, water or soil that is harmful to humans or animals is called pollutant.

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Solid NH4HS is introduced into an evacuated flask at 24 ∘C. The following reaction takes place: NH4HS(s)⇌NH3(g)+H2S(g) At equili
Ivanshal [37]

Answer:

0.09425

Explanation:

The reactant is in solid phase and therefore has zero partial pressure.

The products have the same mole ratio (1:1) and will have the same partial pressure = 1/2 × 0.614 atm = 0.307 atm

Kp =  (NH3)(H2S) = 0.09425

4 0
3 years ago
Important (question on k12 test)
monitta

Answer:

A new Dana system of classification contains 78 different classes of minerals based on composition and then further classified by type and group. To be considered a mineral, a substance must be an inorganic, naturally formed solid, with a specific chemical formula and a fixed internal structure. To test whether something is a mineral, there are several identification tests to which the substance is subjected, including its resistance to scratching, its density in comparison to water, its color, the degree of light it reflects, the color of the powdered mineral, its breakage pattern and its crystalline form.

Explanation:

4 0
3 years ago
Read 2 more answers
Elements, Compounds,& Mixtures,
mrs_skeptik [129]

Answer:

1. Elements: F, H, E

2. Compounds: A, D, I

3. Mixtures: B, C, G

Explanation:

3 0
3 years ago
In an electron dot diagram of fluorine , how many dots should be drawn around the elements symbol
Irina18 [472]

Answer:

7 dots

Explanation:

8 0
3 years ago
Which feature indicates that Mars resides in the inner region of the solar system?
amm1812

Answer: The correct option is B.

Explanation: There are 2 regions of the solar system.

1) Inner region: There are 4 planets which lie in this region: Mercury, Venus, Earth and Mars. The inner region planets are rocky in nature. The orbit time of these planets around the sun is short. They have 0, 1 or 2 satellites in total. There is no ring system in these planets.

2) Outer region: There are 4 planets which lie in this region: Jupiter, Saturn, Uranus and Neptune. The outer region planets are gaseous in nature. The orbit time of these planets around the sun is long. They have usually more number of satellites around them. Ring system in these planets is very common.

Hence, Mars resides in the inner region of the solar system because it has a rocky surface that one could firmly stand on.

8 0
3 years ago
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