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Effectus [21]
3 years ago
10

Bill bye states that “ as more and more species disappear, it is harder and harder to keep the ecosystem in balance because we d

on’t know what?
Chemistry
1 answer:
Aleonysh [2.5K]3 years ago
6 0

Answer:

what th efuter holds and what the specicies need and what is healthy for them.

Explanation:

give me bwanliest pweeas i only need three more

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What percentage of the mass of 1 mole of CH3Cl is derived from carbon?​
steposvetlana [31]

Answer:

Element Symbol Atomic weight Atoms Mass percent

Carbon C                  12.0107               1              23.7894

Hydrogen H         1.00794                3         5.9892

Chlorine Cl                 35.453                 1       70.2213

Explanation:

3 0
3 years ago
Which best explains the difference between a ball-and-stick model of a chemical compound and a space-filling model?
Nikolay [14]
Scientists use models to show the characteristics of compounds. Of the different models,ball-and-stick model and space-filling model are commonly used but similar. Ball-and- stick model shows the bond between both atom and not the relative size of the atoms. Space-filling model shows the relative size of the atom and not the bond between the atoms. Both are 3-Dimensional and use color spheres within the model. 
4 0
3 years ago
Read 2 more answers
Which atom has the weakest attraction for electrons in a chemical bond? A) a boron atom B) a calcium atom C) a fluorine atom D)
Black_prince [1.1K]
<span> The answer is
B) a calcium atom</span>
3 0
3 years ago
What could happen to the amount of greenhouse gases in the atmosphere if oceans continue to warm? How could this impact global c
My name is Ann [436]

The solubility of gas in water is inversely proportional to the temperature. That means cool waters can hold more gases than hot waters. So when the oceans continue to warm all the green--houses gases present in oceanic waters will be released into to the atmosphere. This would further lead to the heating up of the planet. The global climate would keep changing and the temperature of the planet would increase further. Therefore, when the oceans continue to warm the amount of green-house gases  cannot be sequestered by the oceans (as the temperatures are high) and so this would further enhance the greenhouse effect.

5 0
2 years ago
Two gas-filled tanks have the same volume, temperature, and pressure. They are identical in every way except that one is filled
Tems11 [23]

Answer:

The tank with O₂ weighs more.

Explanation:

We can find the mass of gas using the ideal gas equation.

P.V=n.R.T=\frac{m}{M} .R.T\\m=\frac{P.V.M}{R.T}

Considering the pressure (P), volume (V), temperature (T) and ideal gas constant (R) are the same, we can establish that:

m ∝ M

The mass is directly proportional to the molar mass. The molar mass of O₂ (32 g/mol) is higher than the molar mass of N₂ (28 g/mol). Therefore, the tank with O₂ weighs more.

8 0
3 years ago
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