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stich3 [128]
3 years ago
11

The number of moles of hydrogen that are needed to produce .253 moles of water​

Chemistry
1 answer:
Brut [27]3 years ago
8 0

Answer:

454

Explanation:

j

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How many moles in 2 h2o molecules
alexandr1967 [171]

Answer:

2 molecules of water represents 3.32 x 10^-24 moles of water.

Explanation:

To find the solution to this problem, you have to use the concept of Avogadro´s number, that is in 1 mol of any element o compound there are                    6.022 x 10^23 molecules. Then,

1 mol H2O ------------- 6.022 x 10^23 molecules

x= 3.32 x 10^-24 ---- 2 molecules.

2 molecules of water represents 3.32 x 10^-24 moles of water.

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Describe the relationship between potential and kinetic energy
pashok25 [27]

We know potential energy is position relative, and kinetic energy is motion relative. The primary relationship between the two is their ability to transform into each other. In other words, potential energy transforms into kinetic energy, and kinetic energy converts into potential energy, and then back again.

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What is a molecule???
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A molecule consists of group of atoms that are bonded together by chemical bond. It is the smallest particle of an element or a compound that has the properties of the element or the compound embedded in it. The atoms present in one element easily forms a bonding with the atoms of another element to form molecules. The size and complex nature of molecules varies hugely. Some molecules can have a single atom as is the case with helium, while in several other elements the number of atoms in the molecule can be more than one.
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Which of the following is always a reactant in a combustion reaction?
Marina86 [1]

Answer:

Oxygen

Explanation:

Any Hydrocarbon + Oxygen ----> Carbon Dioxide + H2O (Water vapour, gas, water)

5 0
3 years ago
Read 2 more answers
What is the amount in moles 3.40 g Zn
Sidana [21]
<h3>Answer:</h3>

0.0520 mol Zn

<h3>General Formulas and Concepts:</h3>

<u>Math</u>

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

<u>Chemistry</u>

<u>Atomic Structure</u>

  • Reading a Periodic Table

<u>Stoichiometry</u>

  • Using Dimensional Analysis
<h3>Explanation:</h3>

<u>Step 1: Define</u>

3.40 g Zn

<u>Step 2: Identify Conversions</u>

Molar Mass of Zn - 65.39 g/mol

<u>Step 3: Convert</u>

  1. Set up:                    \displaystyle 3.40 \ g \ Zn(\frac{1 \ mol \ Zn}{65.39 \ g \ Zn})
  2. Divide:                    \displaystyle 0.051996 \ mol \ Zn

<u>Step 4: Check</u>

<em>Follow sig fig rules and round. We are given 3 sig figs.</em>

0.051996 mol Zn ≈ 0.0520 mol Zn

3 0
3 years ago
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