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3 years ago

Heliocentric and Geocentric

Chemistry

1 answer:

bulgar [2K]3 years ago

7 0

Explanation:

heliocentric means having the sun in the middle/center in the solar system

geocentric means having the earth in the middle/center in the solar system

therefore your answers are:

the planets orbit the sun.

in 1543, Nicolaus Copernicus proposed the theory.

the evidence that led people to believe this was when Galileo observed that four moons orbited around Jupiter. in other words, heliocentric.

most of the stars are located in the milky way galaxy.

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A 38.6 kg marble slab is shown above. What is its density? Give your answer to the nearest tenth.

LuckyWell [14K]

Answer:

Density, $d=26.7\ g/cm^3$

Explanation:

The attached figure shows a 38.6 kg marble slab. The dimensions of the marble slab is 23 cm × 17 cm × 4 cm

Density = mass/volume

Volume of a cuboid shape is equal to, V = 23 cm × 17 cm × 4 cm

V = 1564 cm³

Density,

$d=\dfrac{38.6\times 10^3\ g}{1564\ cm^3}\\\\d=24.68\ g/cm^3$

$d=26.7\ g/cm^3$

So, the density of the marble slab is $26.7\ g/cm^3$ .

6 0

3 years ago

Read 2 more answers

What can the particles of a liquid do that the particles of a solid can't do?

son4ous [18]

THey can move around each other instead of just vibrating in place like solid prticles.

3 0

3 years ago

How many moles are in 75.0 grams of nitrogen gas, N2?

Westkost [7]

Given:

Mass of Nitrogen (N₂) gas = 75 grams

Finding the number of moles of N₂:

We know that the molar mass of N₂ is 28 grams/mole

Number of moles = Given mass / Molar mass

Number of moles = 75 / 28

Number of moles = 2.68 moles

Hence, there are 2.68 moles in 75 grams of Nitrogen Gas

7 0

2 years ago

Besides nylon, what other product is formed from the reaction of adipoyl chloride and 1,6-diaminohexane?.

Len [333]

Besides nylon, HCl is formed from the reaction of adipoyl chloride and 1,6- diaminohexane , but HCl is the byproduct molecule.

<h3>What is formed when adipoyl chloride and 1,6-diaminohexane reacts with each other and what are the by products?</h3>

Adipoyl chloride is the monomer and hexamethylinediamine is also the monomer which reacts together to form polymer.
The polymer formed is named nylon6,6 which is a co polymer and nylon 6,6 find its use in various other activities of life.
Nylon6,6 is a copolymer since the participation of two monomers , and not a single monomer undergoing decomposition.
Nylon6,6 is formed with an elimination of small molecule of HCl which is considered to be a by product .
It is formed by a condensation reaction and hence HCl is the product formed from the reaction of adipoyl chloride and 1,6- diaminohexane.

To know more about nylon visit:

brainly.com/question/10278626

#SPJ4

7 0

7 months ago

In photosynthesis, the reactants are more stable than the products. However, both the products and reactants are stable. Therefo

My name is Ann [436]

Answer:

A.) Absorb and store

Explanation:

The reaction for photosynthesis is:

$6CO_{2}+ 12H_{2} O$ → $C_{6} H_{12} O_{6} +6H_{2} O$ (reaction conditions: light and chlorophyll)