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3 years ago

What were the first 25 elements that found in the earth? answer it plz.

Chemistry

1 answer:

ollegr [7]3 years ago

6 0

Answer:

Copper, Lead, Gold, Silver, Iron, Carbon, Tin, Sulfur, Mercury, Zinc, Arsenic, Bismuth, Phosphorus, Cobalt, Platinum, Nickel, Magnesium, Hydrogen, Oxygen, Nitrogen, Barium, Chlorine, Manganese, Molybdenum, Tungsten.

Explanation:

Hope This Helps :b

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3 years ago

(Please answer ASAP) Describe in your own words A.) what does Inert mean? B.) why are noble gases Inert (include an explanation

Alex_Xolod [135]

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4 years ago

Convert 14.72 kg to ____ mg

navik [9.2K]

Answer:

14720000

Explanation:

1 kg = 1000000 mg

14.72 kg = 14.72 x 1000000

=14720000

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3 years ago

What part of a circuit stops the current if it is open

eduard

Answer:

B is the correct answer

Explanation:

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3 years ago

Find the mass in grams of 3.00 x 1023 molecules of F2

LUCKY_DIMON [66]

<h3>Answer:</h3>

18.9 g F₂

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

<u>Math</u>

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

<u>Chemistry</u>

<u>Atomic Structure</u>

Reading a Periodic Table
Using Dimensional Analysis
Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.

<h3>Explanation:</h3>

<u>Step 1: Define</u>

3.00 × 10²³ molecules F₂

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

Avogadro's Number

Molar Mass of F₂ (Diatomic) - 38.00 g/mol

<u>Step 3: Convert</u>

Set up: $\displaystyle 3.00 \cdot 10^{23} \ molecules \ F_2(\frac{1 \ mol \ F_2}{6.022 \cdot 10^{23} \ molecules \ F_2})(\frac{38.00 \ g \ F_2}{1 \ mol F_2})$
Multiply: $\displaystyle 18.9306 \ g \ F_2$

<u>Step 4: Check</u>

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

18.9306 g F₂ ≈ 18.9 g F₂

8 0

3 years ago

What were the first 25 elements that found in the earth? answer it plz. ​

What were the first 25 elements that found in the earth? answer it plz.