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2 years ago

Sublimation is snow or ice changing to a gas without melting. What must happen to the molecules for this to happen?

1 answer:

6 0

Answer:Sublimation is the conversion between the solid and the gaseous phases of matter, with no intermediate liquid stage. For those of us interested in the water cycle, sublimation is most often used to describe the process of snow and ice changing into water vapor in the air without first melting into water.

Explanation:

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Half equation for oxygen to oxide ions, aluminium ions to aluminium, magnesium to magnesium ions

soldi70 [24.7K]

2mg(s)+02(g)=2mg0 that was the correct answer

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2 years ago

An indicator is what type of compound?

OleMash [197]

The letter (d.) strong base or acid would be the most appropriate answer to the question above. An indicator is a strong base or acid. Indicators are strong base and acid because through this you can determine if a compound is acid or base with its color.

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3 years ago

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Which is a postulate of the kinetic molecular theory of gases? Despite being very small, the volume occupied by the individual p

Paladinen [302]

Answer:

The particles that compose a gas are so small compared to the distances between them that the volume of the individual particles can be assumed to be negligible.

Explanation:

This is a postulate of the Kinetic Molecular Theory.

A is wrong. KMT assumes the that the volume of the particles is negligible.

B is wrong. KMT assumes that the distance between the particles is muck greater than their size.

D is wrong. It takes the large distances as a fact. KMT uses this as an assumption.

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2 years ago

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Use the following equation to answer question 1-4. Make sure you balance first.

worty [1.4K]

<h3>Answer:</h3>

5.2 mol H₂O

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

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

<u>Chemistry</u>

<u>Stoichiometry</u>

Using Dimensional Analysis

<h3>Explanation:</h3>

<u>Step 1: Define</u>

[RxN - Balanced] 6HCl + Fe₂O₃ → 2FeCl₃ + 3H₂O

[Given] 10.4 mol HCl

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

[RxN] 6 mol HCl = 3 mol H₂O

<u>Step 3: Stoichiometry</u>

Set up: $\displaystyle 10.4 \ mol \ HCl(\frac{3 \ mol \ H_2O}{6 \ mol \ HCl})$
Multiply/Divide: $\displaystyle 5.2 \ mol \ H_2O$

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2 years ago

Can someone please help me fill this out?

Mamont248 [21]

The states of matter is solid,liquid and gas & you go from there.

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2 years ago