These are metal atoms. Hence,they have the tendency to give away (lend) electrons as each metal atoms has only 2 valence electrons which makes it easier to lose these electrons than gain.Numver of electrons give away is 2
Answer:
I'm assuming you're talking about something like a regular housekey, in which case there are numerous things you can describe!
<u>Its mass:</u> how much it weighs, times the gravity of the system.
<u>Its color:</u> is it silver-colored, or gold, etc.?
<u>Its volume:</u> you could probably calculate this, though it would be hard because it's not a traditional shape, I assume.
<u>Its density:</u> this is mass/volume. It means how many of the atoms are in a given space; how tightly packed the atoms are.
<u>Its tendency to rust / its specific combination of metals or alloys:</u> is it made of copper, tin, steel.. and these are all things that can rust to varying degrees.
The mass number = protons + electrons
Atomic number= protons (and electrons)
You can determine the number of neutrons by subtracting the number of protons from the mass number
<h3>
Answer:</h3>
2.6299 g NaCl
<h3>
General Formulas and Concepts:</h3>
<u>Math</u>
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
<u>Chemistry</u>
<u>Stoichiometry</u>
- Reading a Periodic Table
- Using Dimensional Analysis
<h3>
Explanation:</h3>
<u>Step 1: Define</u>
[RxN} FeCl₃ + 3NaOH → Fe(OH)₃ + 3NaCl
[Given] 2.43306 g FeCl₃
<u>Step 2: Identify Conversions</u>
[RxN] 1 mol FeCl₃ = 3 mol NaCl
Molar Mass of Fe - 55.85 g/mol
Molar Mass of Cl - 35.45 g/mol
Molar Mass of Na - 22.99 g/mol
Molar Mass of FeCl₃ = 55.85 + 3(35.45) = 162.2 g/mol
Molar Mass of NaCl - 22.99 + 35.45 = 58.44 g/mol
<u>Step 3: Stoichiometry</u>
- Set up:
- Multiply/Divide:
<u>Step 4: Check</u>
<em>Follow sig fig rules and round. We need 5 sig figs (instructed).</em>
2.62986 g NaCl ≈ 2.6299 g NaCl