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4 years ago

The gravitational Strength on earth is less than the gravitational strength on Neptune. Which statement is correct?

Chemistry

1 answer:

tatuchka [14]4 years ago

4 0

Answer:

This makes Neptune very light because of its size. The surface gravity on Neptune is about 110 percent of the surface gravity on Earth, so if you weigh 100 pounds on Earth, you weigh 110 pounds on Neptune (assuming you could find a place to stand).

Explanation:

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Order the molecules from the strongest intermolecular force (top) to the weakest (bottom).

ASHA 777 [7]

1. HF>HCl>HBr>Hl

2. C

YEEEET

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3 years ago

Read 2 more answers

Four properties of water are listed. It reacts with halogens to form oxygen gas as one of the products. It is transparent and ta

Luda [366]

Answer:

1 and 4 took the test

Explanation:

5 0

3 years ago

Write the symbolic notation of an isotope of an element having 8 protons, 8 electrons, and 11 neutrons. Click on the “Templates”

horrorfan [7]

Attached to this answer is the format of Isotope Notation that you can use for future reference. <em>(Please open)</em>

There are 8 Protons. The Atomic Number is the same number of an element's proton.

If you can see in the format, the mass number is calculated by adding the atomic number/protons and neutrons.

Mass number = 8 + 11
Mass number = 19

The image of the final answer is attached as well.

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3 years ago

How many molecules of CF₂Cl₂ are in 45.7 grams of CF₂Cl₂? (Show work)

posledela

Answer:

The answer to your question is: 2.20 x 10 ²³ molecules

Explanation:

Data

mass = 45.7 g

molecules of CF₂Cl₂ = ?

Process

1.- Calculate the mass number of CF₂Cl₂

C = 12 F =2 x 19 Cl = 2 x 35.5

total = 12 + 38 + 71

total = 121 g

2.- Use the Avogradro's number to solve the problem

121 g ------------------- 6.023 x 10²³ molecules of CF₂Cl₂

45.7 g --------------- x

x = (45.7 x 6.023 x 10²³) / 121

x = 2.75 x 10²⁵ / 121

x = 2.20 x 10 ²³ molecules

4 0

3 years ago

Which of the following was NOT one of the components of Dalton's Atomic Theory? (1 point) All elements are composed of tiny indi

bezimeni [28]

Answer: Atoms of one element, however, are never changed into atoms of another element as a result of a chemical reaction.

Explanation:

Dalton's Atomic Theory was proposed in the 20th century by an English Scientist named John Dalton. His theory is postulated as follows:

1) All elements are composed of tiny indivisible particles called atoms.

2) The atoms of any one element are identical to those of any other element. 3) Atoms of different elements can physically mix together or can chemically combine in simple whole-number ratios to form compounds.

However, the final option is NOT one of Dalton's Theory

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3 years ago