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3 years ago

Which is needed to determine the amount of gravitational force between two objects?

Chemistry

1 answer:

adell [148]3 years ago

5 0

Answer: B

Explanation:

B. Distance and Mass

Newton's Law of gravitation states $F=\frac{GMm}{r^2}$

G being a constant

M being mass 1

m being mass 2

r being the distance between them from their center of mass

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during the processes of erosion and deposition sediments that are the ____ in size will be carried the greatest distances before

Harlamova29_29 [7]

<span>Smallest sediments will go the farthest. Usually sand or silt size grains.</span>

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3 years ago

Where would the temperature of the ocean's surface water be the lowest?

bazaltina [42]

Answer:

The correct answer is option C, areas with a high salinity

Explanation:

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How many molecules are in 0.500 mol of AlBr3

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Which of the following are characteristics of ionic compounds? Check all that apply. have high melting and boiling points are ha

Oliga [24]

Answer:

A-Have high melting and boiling points

B- Are hard

D- Are good conductors of electricity when dissolved in water

Explanation:

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3 years ago

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What is the amount in moles 3.40 g Zn

Sidana [21]

<h3>Answer:</h3>

0.0520 mol Zn

<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> </u>

<u>Chemistry</u>

<u>Atomic Structure</u>

Reading a Periodic Table

<u>Stoichiometry</u>

Using Dimensional Analysis

<h3>Explanation:</h3>

<u>Step 1: Define</u>

3.40 g Zn

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

Molar Mass of Zn - 65.39 g/mol

<u>Step 3: Convert</u>

Set up: $\displaystyle 3.40 \ g \ Zn(\frac{1 \ mol \ Zn}{65.39 \ g \ Zn})$
Divide: $\displaystyle 0.051996 \ mol \ Zn$

<u>Step 4: Check</u>

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

0.051996 mol Zn ≈ 0.0520 mol Zn

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3 years ago