During a collision, the person would most likely experience the same conditions with or without a seatbelt.
It helps shape and create the study of electromagnetism
The answer would be D. (The 4th one listed).
Abiotic factors are the non-living parts of the environment that can often have a major influence on living organisms.
Hope this helps!
Hola!
[ refer the attachment. ]
Compare this diagram with that of yours.. :)
hope it helps!
<h3>
Answer:</h3>
1.37 × 10²³ formula units MgCl₂
<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>Atomic Structure</u>
- Reading a Periodic Table
- Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.
<u>Stoichiometry</u>
- Using Dimensional Analysis
<h3>
Explanation:</h3>
<u>Step 1: Define</u>
[Given] 21.6 g MgCl₂
<u>Step 2: Identify Conversions</u>
Avogadro's Number
[PT] Molar Mass of Mg - 24.31 g/mol
[PT] Molar Mass of Cl - 35.45 g/mol
Molar Mass of MgCl₂ - 24.31 + 2(35.45) = 95.21 g/mol
<u>Step 3: Convert</u>
- [DA] Set up:
![\displaystyle 21.6 \ g \ MgCl_2(\frac{1 \ mol \ MgCl_2}{95.21 \ g \ MgCl_2})(\frac{6.022 \cdot 10^{23} \ formula \ units \ MgCl_2}{1 \ mol \ MgCl_2})](https://tex.z-dn.net/?f=%5Cdisplaystyle%2021.6%20%5C%20g%20%5C%20MgCl_2%28%5Cfrac%7B1%20%5C%20mol%20%5C%20MgCl_2%7D%7B95.21%20%5C%20g%20%5C%20MgCl_2%7D%29%28%5Cfrac%7B6.022%20%5Ccdot%2010%5E%7B23%7D%20%5C%20formula%20%5C%20units%20%5C%20MgCl_2%7D%7B1%20%5C%20mol%20%5C%20MgCl_2%7D%29)
- [DA] Multiply/Divide [Cancel out units]:
![\displaystyle 1.36619 \cdot 10^{23} \ formula \ units \ MgCl_2](https://tex.z-dn.net/?f=%5Cdisplaystyle%201.36619%20%5Ccdot%2010%5E%7B23%7D%20%5C%20formula%20%5C%20units%20%5C%20MgCl_2)
<u>Step 4: Check</u>
<em>Follow sig fig rules and round. We are given 3 sig figs.</em>
1.36619 × 10²³ formula units MgCl₂ ≈ 1.37 × 10²³ formula units MgCl₂