2HgO O2 + 2Hg

A covalent bond between an oxygen atom and a hydrogen atom is best described as _____.

Igoryamba

The answer is most likely nonmetals. :)

7 0

3 years ago

Imagine that you have a 7.00 L gas tank and a 3.50 L gas tank. You need to fill one tank with oxygen and the other with acetylen

GaryK [48]

Answer:

We should fill the acetylene tank to a pressure of 100 atm

Explanation:

Step 1: Data given

Volume tank 1 = 7.00 L

Tank 1 is filled with oxygen and has a pressure of 125 atm

Volume tank 2 = 3.50 L

Step 2: The balanced equation

2 C2H2 + 5 O2 → 4 CO2 + 2 H2O

Step 3: Calculate the pressure of acetylene

p(oxygen) * V(Oxygen) = n(Oxygen) * R * T

p(Acetylene) * V(Acetylene) = n(Acetylene) * R * T

We can assume both tanks are at the same temperature, so we can write this as followed:

p(Oxygen)* V(Oxygen) / p(Acetylene)*V(Acetylene) = n(Oxygen) / n(Acetylene)

⇒with n(Oxygen) / n(Acetylene) = 5/2

⇒with p(Oxygen) = 125atm

⇒V(Oxygen) =7L

⇒V(Acetylene) = 3.5L

⇒ this gives us: (125 * 7) / (P(Acetylene) * 3.5) = 5/2

p(Acetylene) = 100 atm

We should fill the acetylene tank to a pressure of 100 atm

7 0

4 years ago

The average atomic weight of oxygen (O) is 15.9994 amu. It has three naturally occurring isotopes, 16 O, 17 O and 18 O, and 0.03

olganol [36]

Answer:

Abundance 18O = 0.201%

Abundance 16O = 99.768%

Explanation:

The average atomic weight of oxygen is defined as:

Average = Abundance 16O * 15.995amu + Abundance 17O * 16.999amu + Abundance 18O * 17.999amu

As average is 15.9994 amu and abundance of O17 = 0.037% = 3.7x10⁻⁴ we can write:

15.9994amu = Abundance 16O * 15.995amu + 3.7x10⁻⁴* 16.999amu + Abundance 18O * 17.999amu

15.9931 = Abundance 16O * 15.995amu + Abundance 18O * 17.999amu (1)

The abundance of each isotope = 1:

1 = Abundance 16O + Abundance 17O + Abundance 18O

1 = Abundance 16O + 3.7x10⁻⁴ + Abundance 18O

0.99963 = Abundance 16O + Abundance 18O (2)

Replacing (2) in (1):

15.9931 = (0.99963 - Abundance 18O) * 15.995amu + Abundance 18O * 17.999amu

15.9931 = 15.9891 - 15.995Abundance 18O + 17.999Abundance 18O

4.0182x10⁻³ = 2.004Abundance 18O

2.005x10⁻³ = Abundance 18O = 0.201%

Thus, abundance of 16O in percentage is:

Abundance 16O = 100 - 0.201% - 0.031%

<h3>Abundance 16O = 99.768%</h3>

8 0

3 years ago

Given the balanced equation representing a reaction: 2NaCl -> 2Na + Cl2 A 1170. gram sample of NaCl completely reacts, produc

arlik [135]

Given the stoichiometric equation above and the amount of NaCl needed to produce the products, we can determine the amount of products produced. A 1170 gram NaCl using stoich produces 460 grams Na. This means the reaction makes a 100% conversion after. So, the amount of Cl2 produced from stoich is 709.61 grams.

5 0

3 years ago

Read 2 more answers

Which phrase best defines the term energy

Mars2501 [29]

Answer:

theres no options?

Explanation:

6 0

4 years ago