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hichkok12 [17]
2 years ago
13

Which statements correctly describe characteristics of cells? Check all that apply. A. Animal cells are all generally circular i

n shape.
B. Plant cells come in many different shapes and sizes.
C. Only animal cells have a nucleus.
D. Bacterial cells are smaller than animal or plant cells.
E. Most cells within a living organism are alive.​
Chemistry
1 answer:
Gnoma [55]2 years ago
8 0

Answer:

A. Correct

B. Wrong

C. Wrong.

D. Correct.

E. Correct.

Explanation:

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Study the diagram about the varying pressures of Earth’s Layers.
melomori [17]

Answer:

A) Outer core

Explanation:

just took the test

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2 years ago
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Write 2 typical properties that are only common to transition metals​
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Answer:

Properties of transition elements

they are all metals and that most of them are hard, strong, and lustrous, have high melting and boiling points, and are good conductors of heat and electricity.

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3 years ago
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Which of the following has more energy than visible light?
Svetlanka [38]
It should be radio waves. If you need anymore help look up the wavelength chart online.

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2 years ago
How many moles in 4.93 x 10E23 atoms of silver?
leva [86]
<h3>Answer:</h3>

0.819 mol Ag

<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>

4.93 × 10²³ atoms Ag

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

Avogadro's Number

<u>Step 3: Convert</u>

  1. Set up:                              \displaystyle 4.93 \cdot 10^{23} \ atoms \ Ag(\frac{1 \ mol \ Ag}{6.022 \cdot 10^{23} \ atoms \ Ag})
  2. Divide:                              \displaystyle 0.818665 \ mol \ Ag

<u>Step 4: Check</u>

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

0.818665 mol Ag ≈ 0.819 mol Ag

8 0
2 years ago
Which of the following molecules has one lone pair of electrons?
BigorU [14]
You can automatically rule out CH₄ since it has no lone pairs at all around the central atom. Water has 2. Ammonia is the only Lewis structure that contains one lone pair.
7 0
2 years ago
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