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sladkih [1.3K]
2 years ago
10

Name all nonmetals that are noble has. PLEASE HELP ASAP ILL GIVE YOU BRAINLIEST

Chemistry
1 answer:
miss Akunina [59]2 years ago
4 0
Hellium argon neon xenon krypton randon oxygen fluorine chlorine bromine
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Please help!!<br> I don’t understand
laiz [17]
<h3>Answer:</h3>

150 g Si

<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
  • Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.

<u>Stoichiometry</u>

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

<u>Step 1: Define</u>

[Given] 3.2 × 10²⁴ atoms Si

[Solve] grams Si

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

Avogadro's Number

[PT] Molar Mass of Si - 28.09 g/mol

<u>Step 3: Convert</u>

  1. [DA] Set up:                                                                                                       \displaystyle 3.2 \cdot 10^{24} \ atoms \ Si(\frac{1 \ mol \ Si}{6.022 \cdot 10^{23} \ atoms \ Si})(\frac{28.09 \ g \ Si}{1 \ mol \ Si})
  2. [DA] Multiply/Divide [Cancel out units]:                                                            \displaystyle 149.266 \ g \ Si

<u>Step 4: Check</u>

<em>Follow sig fig rules and round. Instructed to round to 2 sig figs.</em>

149.266 g Si ≈ 150 g Si

4 0
3 years ago
WHAT DOES THIS SAY AND WHAT THE ANSWER
notka56 [123]

It says

The majority of elements on the periodic table are ______________ (metals, nonmetals, or metalloids).  

The periodic table on the left separates elements into three groups: the metals (green in the table), nonmetals (orange), and metalloids (blue). Most elements are metals.

Apr 18, 2003

4 0
3 years ago
what is the empirical formula of a compound if a sample contains 8.52g of carbon and 1.43 grams of hydrogen?
motikmotik

Answer:

Ultra ng 5

Palitan konang 6 Gems

Comment base❤

<h3> %Legit✔️</h3>
6 0
2 years ago
In which of the following does the land being moved contin approximately 60% water
sp2606 [1]

Answer:

C

Explanation:

The answer is C because only that amount can move

4 0
3 years ago
Read 2 more answers
What going on in each spot
KATRIN_1 [288]

nothing ksbsshshhzvsjajbsjshjsgdvdjhsbsj

3 0
3 years ago
Read 2 more answers
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