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Mice21 [21]
3 years ago
13

before the quarry was dug, the land contained more vegetation . what impact has this change most likely had on the local ecosyst

em
Chemistry
1 answer:
Sergio039 [100]3 years ago
5 0
It was loss of nutrients, I think


Explanation:

The quarry was dug up and vegetation started dying. The quarry was probably rich with nutrients

Please brainliest !! ❤️
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Why did the vinegar erupt when I put the baking soda ?
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When the chemicals combine, it creates a chemical reaction or "eruption" 
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Ten moles of hydrogen are allowed to react with 6 moles of oxygen. How much water will be
Anastaziya [24]

Answer:

10 moles of water are produced,

Explanation:

Given data:

Moles of H = 10 mol

Moles of O = 6 mol

Water obtained = ?

Solution:

Balance chemical equation:

2H₂ + O₂    →    2H₂O

Now we will compare the moles of H₂ and O₂ with water from balance chemical equation.

                            H₂             :          H₂O

                             2              :            2

                             10             :           10

                            O₂             :          H₂O

                             1              :            2

                             6             :           2×6 = 12

Number of moles of water produced by hydrogen are less so hydrogen will be limiting reactant and it will limit the yield of water thus, 10 moles of water are produced.

                                 

3 0
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2 years ago
Read 2 more answers
A pure gold ring (c = 0.128 J/g°C) and pure silver ring (c = 0.235 J/g°C) have a total mass of 16.891 g . The two rings are heat
ANTONII [103]

Explanation:

The total mass will be as follows.

          Total mass = mass of silver ring (M_{s}) + mass of gold ring (M_{G})

And, heat lost by gold and silver rings = heat gained by water

 [M_{G} \times 0.128 J/g^{o}C \times (66.887 - 24.2)^{o}C] + [M_{s} \times 0.235 J/g^{o}C \times (66.887 - 24.2)^{o}C] = 13.9 ml \times 0.998 g/ml \times 4.18 J/g^{o}C \times (24.2 - 21.9)^{o}C

           42.687 (0.128M_{g} + 0.235M_{s}) = 133.368

              0.128M_{g} + 0.235M_{s} = 3.124

             0.128M_{g} + 0.235 (16.891 - M_{g}) = 3.124

        0.128M_{g} + 3.969 - 0.235M_{g} = 3.124                

                            0.107M_{g} = 0.845

                           M_{g} = 7.897 g

Thus, we can conclude that the mass of gold ring is 7.897 g.

7 0
3 years ago
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