How do we measure the acidity of rain?

Answers

Answer 1

Answer: just use litmus paper or a pH indicator

Related Questions

How could you test the law of conservation of matter? ( No atoms can be created or destroyed when under physical or chemical change)
All funguslike protists are able to do this at some point in their lives
In the last 100 years, the level of CO2 in the atmosphere has been significantly increased by man by: pesticides the burning of fossil fuels domestic heat incineration of waste products
How would one convert 36 yd to centimeters 2.54 cm = 1 in)?
Which two substances are covalent compounds?(1) C6H12O6(s) and KI(s)(2) C6H12O(s) and HCl(g)(3) KI(s) and NaCl(s)(4) NaCl(s) and HCl(g)

Does sodium have a positive or negative charge after ionization?

Answers

Explanation:

Sodium has atomic number of 11 with electronic configuration of :

$[Na]=1s^22s^22p63s^1$

Sodium loose it single electron to attain stability of noble gas configuration. While this process electron gets removed from the outer shell of the sodium atom and it gains positive charge of +1.

$[Na^+]=1s^22s^22p63s^0$

$Na\rightarrow Na^++e^-$ (Ionization)

Sodium Chloride also known as table salt, the sodium has a positive charge and the chloride a negative so after ionization that leaves you with two negative charges because it takes the salt away. possibly disforming the atoms.

ammoniagas and oxygengas react to form nitrogen gas and water vapor. suppose you have of and of in a reactor. calculate the largest amount of that could be produced. round your answer to the nearest .

Answers

Answer:

Explanation:

To calculate the largest amount of nitrogen gas (N2) that could be produced when ammonia gas (NH3) and oxygen gas (O2) react, you need to consider the balanced chemical equation for the reaction:

4 NH3(g) + 5 O2(g) -> 4 N2(g) + 6 H2O(g)

From the balanced equation, you can see that 4 moles of NH3 produce 4 moles of N2.

Now, let's calculate the number of moles of NH3 and O2 you have:

Moles of NH3 = 4.0 grams / molar mass of NH3

Moles of O2 = 8.0 grams / molar mass of O2

The molar mass of NH3 (ammonia) is approximately 17.03 g/mol, and the molar mass of O2 (oxygen) is approximately 32.00 g/mol.

Moles of NH3 = 4.0 g / 17.03 g/mol ≈ 0.235 moles

Moles of O2 = 8.0 g / 32.00 g/mol ≈ 0.250 moles

Now, you need to determine the limiting reactant, which is the reactant that is completely consumed and limits the amount of product formed. To do this, compare the mole ratio from the balanced equation to the actual moles of NH3 and O2:

NH3 : O2 = 4 moles : 5 moles

Since you have fewer moles of NH3 (0.235 moles) than the required 0.25 moles based on the mole ratio, NH3 is the limiting reactant.

Now, calculate the moles of N2 produced using the mole ratio:

Moles of N2 = Moles of NH3 (since it's the limiting reactant)

Moles of N2 = 0.235 moles

Now, you can convert moles of N2 to grams:

Mass of N2 = Moles of N2 x Molar mass of N2

The molar mass of N2 (nitrogen gas) is approximately 28.02 g/mol.

Mass of N2 = 0.235 moles x 28.02 g/mol ≈ 6.59 grams

Rounding to the nearest gram, the largest amount of N2 that could be produced is approximately 7 grams.

What is the general procedure from extracting a metal from its ore

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Ores are naturally occurring rocks that contain metal or metal compounds in sufficient amounts to make it worthwhile extracting them. For example, iron ore is used to make iron and steel.

The melting and freezing points of a substance are the same temperature.a. True
b. False

Answers

That's false. A melting point is hot/warm, while the freezing point is cold.

False! The melting point and freezing points would differ based on their properties.

Which physical changes are endothermic?(1) melting and freezing
(2) melting and evaporating
(3) condensation and sublimation
(4) condensation and deposition

Answers

Melting and evaporating are endothermic.

Melting and evaporating are the physical changes that are endothermic. Therefore, the correct option is option 2.

Physical modifications are those that modify a chemical substance's shape yet do not affect its chemical content. Physical changes may normally be utilised to separate compounds to chemical elements and simpler compounds, but they cannot be utilised for separate mixtures to their individual components. When something changes physically but not chemically, it is said to have undergone a physical transformation. This contrasts to the idea of a chemical change, when a material's composition changes or a substance or substances mix or separate to generate new compounds. Melting and evaporating are the physical changes that are endothermic.

Therefore, the correct option is option 2.

To know more about physical change, here:

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Physical conditioning or acquired skill cannot be inherited.
True
False

Answers

True just because your parent is great at football does not mean that you will be as good as they were. They can teach you but you won't naturally be Olympic good if your parents are olympians

Answer:

Hi there, the answer is true

Explanation:

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What is the volume of solution needed to make a 0.5M solution, using 250g of NaCl