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3 years ago

Does anyone know if this is correct?

Chemistry

1 answer:

hjlf3 years ago

4 0

Answer:

try 76.35 or d didi in the back of the STREETS of the city girls are the same time as hell

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1.18 g/L to mg/microliters

Ilya [14]

1.18 to microliters is 0.0118 i am sure, so use a table and note in 4 boxes, the first one write liters, then the next write deciliters, then milliliters in the next then microliters, last nanoliters, you want to find the answer of how many micro liters there are in liters so 1.18 just move the decimal to the right each time you go right in the liters boxes, also add two zeros like this 0.0118, boom.

7 0

3 years ago

Someone plz answer this

siniylev [52]

Answer: I would choose the fourth

Explanation: b/c group 18 on the periodic table have the most stable valence electrons (the # of valence electrons are full and no side outweighs another). At least that’s what my teacher last year said.

5 0

3 years ago

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2AlF3 + 3K2O → 6KF + Al2O3

Agata [3.3K]

<h3>Answer:</h3>

7.4797 g AlF₃

<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>Stoichiometry</u>

Reading a Periodic Table
Using Dimensional Analysis

<h3>Explanation:</h3>

<u>Step 1: Define</u>

[RxN] 2AlF₃ + 3K₂O → 6KF + Al₂O₃

[Given] 15.524 g KF

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

[RxN] 6 mol KF = 2 mol AlF₃

Molar Mass of K - 39.10 g/mol

Molar Mass of F - 19.00 g/mol

Molar Mass of Al - 26.98 g/mol

Molar Mass of KF - 39.10 + 19.00 = 58.1 g/mol

Molar Mass of AlF₃ - 26.98 + 3(19.00) = 83.98 g/mol

<u>Step 3: Stoichiometry</u>

Set up: $\displaystyle 15.524 \ g \ KF(\frac{1 \ mol \ KF}{58.1 \ g \ KF})(\frac{2 \ mol \ AlF_3}{6 \ mol \ KF})(\frac{83.98 \ g \ AlF_3}{1 \ mol \ AlF_3})$
Multiply/Divide: $\displaystyle 7.47966 \ g \ AlF_3$

<u>Step 4: Check</u>

<em>Follow sig fig rules and round. We are given 5 sig figs.</em>

7.47966 g AlF₃ ≈ 7.4797 g AlF₃

3 0

3 years ago

What are oil traps?

aliya0001 [1]

In petroleum geology, a trap is a geological structure affecting the reservoir rock and caprock of a petroleum system allowing the accumulation of hydrocarbons in a reservoir. Traps can be of two types: stratigraphic or structural.

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3 years ago

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drek231 [11]

Answer:

Atom is a particle that defines a chemical element, and is normally surrounded by 2 electrons.

Also, how do you that font ?

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3 years ago

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