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3 years ago

PLEASE HELP IM STUGGLING

Chemistry

1 answer:

Gre4nikov [31]3 years ago

7 0

Answer:

8)acids are electron pair acceptors and bases are electron pair donors

9)monoprotic

10)weak acids

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A block of aluminum occupies a volume of 15.0 mL and weighs 40.5 g. What is its density? Answer in g/mL.

solong [7]

Answer:

The answer is

Explanation:

The density of a substance can be found by using the formula

$Density = \frac{mass}{volume}$

From the question

mass of aluminum = 40.5 g

volume = 15 mL

Substitute the values into the above formula and solve for the density

We have

$Density = \frac{40.5}{15}$

We have the final answer as

Hope this helps you

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4 years ago

Which statement best describes the compressibility of a gas? A Increasing the temperature of a gas decreases the pressure. B Inc

k0ka [10]

The answer is C. Compressing the air reduces the volume and increases the pressure. Compressing the air causes the molecules to collide with one another, and with the walls of the container, at a higher frequency. This is becaue the number of molecules are still the same but now forced in a smaller volume of space. This why the pressure increases wiht reduced volume, while keeping the temperatures constant.

8 0

4 years ago

Read 2 more answers

What is the mass of 5.26 mol Fe2(SO4)3?<br> Answer in units of g.

dsp73

<h3>Answer:</h3>

2100 g Fe₂(SO₄)₃

<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>

Using Dimensional Analysis

<u>Atomic Structure</u>

Reading a Periodic Table

<h3>Explanation:</h3>

<u>Step 1: Define</u>

5.26 mol Fe₂(SO₄)₃

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

Molar Mass of Fe - 55.85 g/mol

Molar Mass of S - 32.07 g/mol

Molar Mass of O - 16.00 g/mol

Molar Mass of Fe₂(SO₄)₃ - 2(55.85) + 3(32.07) + 12(16.00) = 399.91 g/mol

<u>Step 3: Convert</u>

Set up: $\displaystyle 5.26 \ mol \ Fe_2(SO_4)_3(\frac{399.91 \ g \ Fe_2(SO_4)_3}{1 \ mol \ Fe_2(SO_4)_3})$
Multiply/Divide: $\displaystyle 2103.53 \ g \ Fe_2(SO_4)_3$

<u>Step 4: Check</u>

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

2103.53 g Fe₂(SO₄)₃ ≈ 2100 g Fe₂(SO₄)₃

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3 years ago

A compound contains 36.48% Na, 25.41% S, and 38.11% O. Find it’s empirical formula

MAXImum [283]

Answer:

we can use 100g of compounds as the basis.

Explanation:

3 0

2 years ago

A substance dissolves in water by breaking up into smaller pieces. these pieces of the same substance spread throughout the wate

photoshop1234 [79]

<span>A substance dissolves in water by breaking up into smaller pieces. these pieces of the same substance spread throughout the water. this process is known as d</span>iffusion.

In short, your answer would be : Diffusion.

Hope this helps !

Photon

6 0

4 years ago