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Mariulka [41]
3 years ago
5

2. Lightning, static electricity, electric eels and the animal nervous system

Chemistry
2 answers:
qwelly [4]3 years ago
8 0
True should be the correct answer
andreyandreev [35.5K]3 years ago
6 0
I believe the answer is true
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Sharing electrons between atoms indicates an ionic bond.<br><br> A. True<br> B. False
muminat

The sharing electrons between atoms indicates an ionic bond is FALSE.

I hope this helps

5 0
3 years ago
Read 2 more answers
What is the boiling point of water at standard atmospheric pressure?
denis23 [38]

Answer:100c

Explanation:

water boils at 100c the normal boiling point is the temperature at which the vapour pressure is equal to the standard sea-level atmospheric pressure

6 0
3 years ago
How many moles in 2.21 x10E24 atoms of aluminum
lisov135 [29]
<h3>Answer:</h3>

3.67 mol Al

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

<u>Math</u>

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

<u>Chemistry</u>

<u>Atomic Structure</u>

  • Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.

<u>Stoichiometry</u>

  • Using Dimensional Analysis
<h3>Explanation:</h3>

<u>Step 1: Define</u>

2.21 × 10²⁴ atoms Al

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

Avogadro's Number

<u>Step 3: Convert</u>

  1. Set up:                              \displaystyle 2.21 \cdot 10^{24} \ atoms \ Al(\frac{1 \ mol \ Al}{6.022 \cdot 10^{23} \ atoms \ Al})
  2. Divide:                              \displaystyle 3.66988 \ mol \ Al

<u>Step 4: Check</u>

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

3.66988 mol Al ≈ 3.67 mol Al

7 0
3 years ago
Which of the following is not true of hydrogen?
Neko [114]
The answer is the first one
4 0
3 years ago
Why do all living things need nitrogen?
Vadim26 [7]

Answer:

Option A. to build new cells.

Explanation:

All living things need nitrogen for the production of new cell because nitrogen is the main structural component of the cell. Protein is made up of amino acid and amino acid made of nitrogen. Without nitrogen atom, enzymes formation is impossible and we know that enzymes are necessary to speed up the chemical process. So nitrogen is very important for living organisms.

4 0
4 years ago
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