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3 years ago

Water boils at a higher temperature than a non-polar solvent like ether because...

2 answers:

7 0

E a large amount of energy is required to break the many hydrogen bonds that restrict the movement of individual water molecules.

Katena32 [7]3 years ago

5 0

Water boils at a higher temperature that a non-polar solvent like ether because a large amount of energy is required to break the many hydrogen bonds that restrict the movement of individual water molecules. The answer is E. Hope it helps.

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How much does calcite coast

Nikitich [7]

Answer:

It depends on what kind and how much. Some are about $100, and others are $1,000.

5 0

3 years ago

one reaction that produces hydrogen gas can be represented by the unbalanced chemical equation Mg(s)+HCI(aq) -> MgCI(aq)+H2(g

Sonbull [250]

<h3>Answer:</h3>

128 g HCl

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

Math

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Chemistry

Atomic Structure

Reading a Periodic Table

Stoichiometry

Reaction Mole Ratios
Using Dimensional Analysis

<h3>Explanation:</h3>

Step 1: Define

[RxN - Unbalanced] Mg (s) + HCl (aq) → MgCl (aq) + H₂ (g)

↓

[RxN - Balanced] 2Mg (s) + 2HCl (aq) → 2MgCl (aq) + H₂ (g)

[Given] 3.25 mol Mg

[Solve] x g HCl

Step 2: Identify Conversions

[RxN] 2 mol Mg → 2 mol HCl

[PT] Molar Mass of H - 1.01 g/mol

[PT] Molar Mass of Cl - 35.45 g/mol

Molar Mass of HCl - 1.01 + 35.45 = 36.46 g/mol

Step 3: Stoich

[S - DA] Set up: $\displaystyle 3.25 \ mol \ Mg(\frac{2 \ mol \ HCl}{2 \ mol \ Mg})(\frac{36.46 \ g \ HCl}{1 \ mol \ HCl})$
[S - DA] Multiply/Divide [Cancel out units]: $\displaystyle 127.61 \ g \ HCl$

Step 4: Check

Follow sig fig rules and round. We are given 3 sig figs.

127.61 g HCl ≈ 128 g HCl

3 0

2 years ago

1) What is air pressure? (4 Points)

Nataly [62]

1) What is air pressure? (Answer: Atmospheric pressure, sometimes also called barometric pressure, is the pressure within the atmosphere of Earth.)

2) What is a barometer and what is it used to measure? (Answer: A barometer is a scientific instrument used in meteorology to measure atmospheric pressure. Pressure tendency can forecast short term changes in the weather.)

3) How does air pressure change? (Answer: Millibar values used in meteorology range from about 100 to 1050. At sea level, standard air pressure in millibars is 1013.2. Weather maps showing the pressure at the surface are drawn using millibars. ... This change in pressure is caused by changes in air density, and air density is related to temperature.)

4) Why is cooler, drier air related to High Pressure? (Answer: This is due to density differences between the two air masses. Since stronger high-pressure systems contain cooler or drier air, the air mass is denser and flows towards areas that are warm or moist, which are in the vicinity of low pressure areas in advance of their associated cold fronts.)

5) Why is warm, moister air related to Low Pressure? (Answer: When air warms, its molecules scatter. The air becomes lighter and rises.)

7 0

3 years ago

Read 2 more answers

What is the mass, in grams, of 50.0L of N2 at STP?

vodka [1.7K]

Hey there!:

Molar mass N₂ = 28.0134 g/mol

28.0134 g ------------------- 22.4 L (at STP )

mass N₂ -------------------- 50.0 L

mass N₂ = 50.0 x 28.0134 / 22.4

mass N₂ = 1400.67 / 22.4

mass N₂ = 62.529 g

Hope this helps!

6 0

3 years ago

PLS HELP What is one of the benefits that scientists have discovered from organisms' daily exposure to radioisotopes? 1, being a

True [87]

Being able to carbon date fossils

5 0

3 years ago

Read 2 more answers