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12345 [234]
2 years ago
5

Hello people ~Help me with this question.Thanks in advance!​

Chemistry
1 answer:
Alekssandra [29.7K]2 years ago
3 0

Hello!

The pollution due to oxides of sulfur gets enhanced due to the

presence of :

  • (a) particulate matter
  • (b) ozone
  • (d) hydrogen peroxide

∴ The correct option is : <u>(4) (a),(b),(d) only</u>

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Can someone answer 2 for me please?
harkovskaia [24]

Answer:

i think its b but i could be wrong

Explanation:

5 0
3 years ago
Read 2 more answers
1.How many grams of zinc Zn and oxygen O2 will be needed to form 324 grams of ZnO after the reaction?
Murrr4er [49]

Answer: pretty sure its 0.214 moles * 40.3g/mole = 8.6g (2 sig figs) of MgO, and

0.035 moles * 40.3g/mole = 1.4g of MgO

Explanation:

6 0
3 years ago
as a gas occupied a volume of 250cc at 250at 700mm pressure temperature,25degree Celsius what additional pressure is required?re
Allisa [31]

Additional pressure required : 175 mm

<h3>Further explanation</h3>

Boyle's Law  

At a constant temperature, the gas volume is inversely proportional to the pressure applied  

\rm p_1V_1=p_2.V_2\\\\\dfrac{p_1}{p_2}=\dfrac{V_2}{V_1}

V₁=250 ml

P₁=700 mmHg

\tt V_2=\dfrac{4}{5}\times 250=200~ml

\tt P_2=\dfrac{P_1.V_1}{V_2}\\\\P_2=\dfrac{700\times 250}{200}=875~mmHg

Additional pressure :

\tt 875-700=175~mm

4 0
3 years ago
A sample of hexane (C6H14) has a mass of 0.580 g. The sample is burned in a bomb calorimeter that has a mass of 1.900 kg and a s
gulaghasi [49]
The answer is 27.7

According to this equation:
q = M C ΔT
When q= the energy that produced when there is a difference in temperature.
M (g) = amount of the material= 1.900 Kg= 1900 g
ΔT= difference in temperature ( in kelvin or C°)= 4.542 K
C= Specific heat capacity=3.21

∴ q = 1900 * 4.542 * 3.21 = 27701.7 J = 27.7 KJ


7 0
4 years ago
Read 2 more answers
Which of the following are fair conductors and are always solid at room temperature?
tensa zangetsu [6.8K]

Answer:

Metalloids and ions

Explanation:

Mercury is not solid at room temperature. (Metals)

Many nonmetals aren't good at conducting electricity. Oxygen for example. (Nonmetals)

Metalloids are always solid at room temp and are fair conductors. (Metalloids)

Ions are same as metalloids. (Ions)

PLS GIVE BRAINLIEST

3 0
3 years ago
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