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3 years ago

How do water go to the sky?

Chemistry

2 answers:

Tanya [424]3 years ago

7 0

Water goes into the sky by condensation I think

Lostsunrise [7]3 years ago

3 0

Heat from the Sun causes water<span> to evaporate from the surface of lakes and oceans.</span>

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7. What are two ways to improve an experiment?

faltersainse [42]

Answer:

Stopwatches versus clocks. To improve reliability repeat the experiment multiple times according to an identical procedure. Record these steps so the experiment can be repeated at any time

Explanation:

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2 years ago

Joe the scientist wants to figure out the angle for throwing a football that

Solnce55 [7]

Answer:

Explanation:

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2 years ago

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How many moles of iron is 6.022 x 10^22 atoms of iron? (Report answer as a number rounded to one place past the decimal.) *

yuradex [85]

<h3>Answer:</h3>

$\displaystyle 0.1 \ mol \ Fe$

<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>

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>

6.022 × 10²² atoms Fe (iron)

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

Avogadro's Number

<u>Step 3: Convert</u>

Set up: $\displaystyle 6.022 \cdot 10^{22} \ atoms \ Fe(\frac{1 \ mol \ Fe}{6.022 \cdot 10^{23} \ atoms \ Fe})$
Divide: $\displaystyle 0.1 \ mol \ Fe$

7 0

3 years ago

if an iron nail is placed in a glass of water the nail will sink. Is the density of iron smaller than or larger than the density

Gala2k [10]

It has more density when it sinks because the water pushes away thats why people float they are less dense

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2 years ago

Why are fibers birefringent

horrorfan [7]

Inevitable manufacturing imperfections in optical fiber leads to birefringence, which is one cause of pulse broadening in fiber-optic communications. Such imperfections can be geometrical (lack of circular symmetry), due to stress applied to the optical fiber and/or due to bending of the fiber.

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2 years ago

Read 2 more answers