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finlep [7]
4 years ago
14

The chemicals used on farms, golf courses, and domestic gardens are often to blame when groundwater becomes contaminated with A.

acid. B. fuel. C. sewage. D. nitrates.
Chemistry
2 answers:
zvonat [6]4 years ago
7 0

Answer:D. Nitrates

Explanation:

Nitrates enter the environment from fertilizers, sewage, or human and animal waste.

Therefore

Farms, golf courses and domestic gardens blame nitrates for contamination.

Agata [3.3K]4 years ago
6 0

Answer:

Nitrates

Explanation:

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balandron [24]

Answer:

Judges and justices serve no fixed term — they serve until their death, retirement, or conviction by the Senate. By design, this insulates them from the temporary passions of the public, and allows them to apply the law with only justice in mind, and not electoral or political concerns.

6 0
3 years ago
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How many photons are contained in a burst of yellow light (589 nm) from a sodium lamp that contains 623 kJ of energy?
Goryan [66]
<span>First we need to find the energy of one photon with a wavelength of 589 nm. E = hc / wavelength E = (6.63 x 10^{-34} J s)(3 x 10^8 m/s) / (589 x 10^{-9} m) E = 3.3769 x 10^{-19} Joules To find N, the number of photons, we need to divide the total energy by the energy of each photon. N = 623000 J / 3.3769 x 10^{-19} Joules N = 1.84 x 10^{24} photons There are 1.84 x 10^{24} photons in the burst of yellow light.</span>
3 0
3 years ago
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An copper mass is heated and placed in a foam cup calorimeter containing 45.0 mL of water at 24.0 degrees celcius. The water rea
Alenkinab [10]

Answer:

= 9,593.1 Joules

Explanation:

Heat absorbed by water is equivalent to heat released by copper.

Heat absorbed is given by;

Q = mcΔT

where m is the mass, c is the specific capacity and ΔT is the change in temperature.

Therefore;

Since dnsity of water is 1 g/mL, and specific heat capacity is 4.18 J/g°C while the change in temperature is (75-24) = 51°C.

Heat absorbed by water = 45 g × 4.18 J/g°C × 51

                                         = 9,593.1 Joules

Therefore, the heat released by copper is 9,593.1 Joules

7 0
4 years ago
Which of the following factors is the most in-<br> fluential in the formation of soil?
Shtirlitz [24]
B. climate
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4 0
3 years ago
Automobile catalytic converters use a platinum catalyst to reduce air pollution by changing emissions such as carbon monoxide, C
julia-pushkina [17]

Answer: 448 g of O_2 will be required to completely react with 784g moles of CO(g) during this reaction.

Explanation:

To calculate the moles :

\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}    

\text{Moles of} CO=\frac{784g}{28g/mol}=28moles

The balanced chemical equation is:

2CO(g)+O_2(g)\rightarrow 2CO_2(g)  

According to stoichiometry :

2 moles of CO require  = 1 mole of O_2

Thus 28 moles of CO will require=\frac{1}{2}\times 28=14moles  of O_2

Mass of O_2=moles\times {\text {Molar mass}}=14moles\times 32g/mol=448g

Thus 448g of O_2 will be required to completely react with 784g moles of CO(g) during this reaction.

6 0
3 years ago
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