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viktelen [127]
3 years ago
11

If oxygen is removed from a sample of air as iron nusts, what happens to the partial pressure of oxygen in the air?

Chemistry
1 answer:
trasher [3.6K]3 years ago
3 0

Answer:

It increases because the less oxygen the more pressure there will be on that specific object

Explanation:

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Which is true about all the different types of matter?
Marat540 [252]
Answer: 1. It is made up of the same basic particles

Matter is made up of atoms, molecules, and ions that cause it to have mass and volume. The different types of matter are made up of the same basic particles but differ on the molecular arrangement and energy the atoms contains that's why they appear differently and have different properties.
8 0
3 years ago
A 10% bleach solution for disinfecting countertops can be prepared by: a. weighing the bleach and the water b. weight to volume
Ierofanga [76]

Answer:

The correct answer is - c. adding 10 mL bleach to 90 mL water.

Explanation:

To prepare a effective disinfecting solution to clean the countertops is a bleasce solution of 10% solution of bleach. The ten percent of the bleach solution means there are one volve of bleach and 9 volume of clean water in this solution.

So, preparing the 1/10 or ten percent solution is where adding 10 ml of bleach which is diluted to 90 ml clean water. This diluted solution can be use as disinfecting solution.

3 0
2 years ago
The vapor pressure of a liquid __________.
mash [69]

Answer:

B

Explanation:

The tendency of a liquid to convert to vapour increases smoothly with increasing temperature. Vapour pressure shows the tendency of a liquid to convert to vapour. Increase In vapour pressure shows an increased tendency to convert to vapour. The higher the temperature, the higher the vapour pressure.

6 0
3 years ago
99 POINTS!! Question: Tell what information each number or symbol in a chemical formula tells you. (Please be specific :)
taurus [48]

Answer: A subscript or superscript is a character that is set slightly below or above the normal line of type, respectively. It is usually smaller than the rest of the text. Subscripts appear at or below the baseline, while superscripts are above.

a coefficient is a constant term related to the properties of a product. In the equation that measures friction, for example, the number that always stays the same is the coefficient.

Parentheses are used in mathematical expressions to denote modifications to normal order of operations (precedence rules). In an expression like , the part of the expression within the parentheses, , is evaluated first, and then this result is used in the rest of the expression.

Chemical symbols are abbreviations used in chemistry for chemical elements, functional groups and chemical compounds. Element symbols for chemical elements normally consist of one or two letters from the Latin alphabet and are written with the first letter capitalized.

That there are no numbers present in the chemical formula means that there is one atom of each element present in the molecule. The Periodic Table reveals that Na is the symbol for sodium, and Cl is the symbol for chlorine.

Explanation:

Is this Good enough?

3 0
3 years ago
Read 2 more answers
Gaseous methane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water . Suppose 7.9 g of methane is
Vikki [24]

Explanation:

The given reaction is as follows.

     CH_{4} + 2O_{2} \rightarrow CO_{2} + 2H_{2}O

As it is known that number of moles equal mass divided by molar mass. Molar mass of methane is 16 g/mol.

Hence,   No. of moles = \frac{mass}{molar mass}

                                   = \frac{7.9 g}{16 g/mol}

                                   = 0.493 mol

Molar mass of oxygen is 32 g/mol.

Hence, its number of moles = \frac{mass}{molar mass}

                                            = \frac{14.4 g}{32 g/mol}

                                            = 0.45 mol

As, it is shown from the reaction that 1 mole of methane needs 2 mole of oxygen.

Therefore, 0.493 mol of methane needs 2 \times 0.45 mol equals 0.9 moles of oxygen.

As there is only 0.45 moles of oxygen for the reaction. So, it means that oxygen is the limiting reagent.

Hence, for 0.45 moles of oxygen, methane required is as follows.

                        \frac{0.45}{2} = 0.225 moles

So, 0.225 moles of methane is equal to 0.225 \times 16 = 3.6 g

As, 3.6 g of methane reacts with oxygen. Therefore, amount of methane remains is calculated as follows.

                   (7.9 g - 3.6 g) = 4.3 g

 Thus, we can conclude that the minimum mass of methane that could be left over by the chemical reaction is 4.3 g.

8 0
3 years ago
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