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3 years ago

Help PlS AFAP and thank you so much

Chemistry

2 answers:

Triss [41]3 years ago

8 0

Answer:

Explanation:

idk how to explain, B is the definition of conduction

Umnica [9.8K]3 years ago

8 0

the answer is B transfer thru direct contact

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Name the compound Fe(NO2)2?

Contact [7]

The compound Fe(NO2)2 is Iron (II) Nitrite.
Hope I could help :)

5 0

3 years ago

Read 2 more answers

g A piece of solid Zn metal is put into an aqueous solution of Cu(NO3)2. Write the net ionic equation for any single-replacement

Nimfa-mama [501]

Answer:

Zn(s) + Cu²⁺(aq) ⇒ Zn²⁺(aq) + Cu(s)

Explanation:

Let's consider the molecular single displacement equation between Zn and Cu(NO₃)₂

Zn(s) + Cu(NO₃)₂(aq) ⇒ Zn(NO₃)₂(aq) + Cu(s)

The complete ionic equation includes all the ions and insoluble species.

Zn(s) + Cu²⁺(aq) + 2 NO₃⁻(aq) ⇒ Zn²⁺(aq) + 2 NO₃⁻(aq) + Cu(s)

The net ionic equation includes only the ions that participate in the reaction and insoluble species.

Zn(s) + Cu²⁺(aq) ⇒ Zn²⁺(aq) + Cu(s)

4 0

3 years ago

What is the mass in grams of 2.25 mol of the element iron, Fe?

scZoUnD [109]

<h3>Answer:</h3>

126 g Fe

<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

<h3>Explanation:</h3>

<u>Step 1: Define</u>

2.25 mol Fe

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

Molar Mass of Fe - 55.85 g/mol

<u>Step 3: Convert</u>

Set up: $\displaystyle 2.25 \ mol \ Fe(\frac{55.85 \ g \ Fe}{1 \ mol \ Fe})$
Multiply: $\displaystyle 125.663 \ g \ Fe$

<u>Step 4: Check</u>

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

125.663 g Fe ≈ 126 g Fe

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3 years ago

Organisms belonging to the same species can mate and produce fertile offspring. T F

Zina [86]

(True) <span>Organisms belonging to the same species can mate and produce fertile offspring</span>

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3 years ago

How many protons and neutrons does gamma radiation have? <br><br> it’s for my project please

aliina [53]

None

it is a form of electromagnetic radiation, meaning it does not have any protons or neutrons

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3 years ago