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3 years ago

Question: Looking at the above visual of "Atmospheres of the Solar System" What are two patterns

Chemistry

2 answers:

Contact [7]3 years ago

6 0

Answer:

The first and most obvious pattern I see is that all gas giants have an atmosphere mainly made up of hydrogen

The second thing I notice is that all the rocky planets have a significant amount of Nitrogen in their atmospheres except Mercury.

The third thing I notice is that all planets have one element that makes up 75% or more of its atmosphere except Mercury.

(If this is good, may I have brainliest, <em>please</em>? I'm kinda poor..)

Kitty [74]3 years ago

3 0

Answer:

It's hard to find patterns in the solar system's atmosphere but I think above found a lot of them.

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A chermist weighs out 400.0 g of Ca How many moles of Ca is this?

ra1l [238]

Answer:

<h3>The answer is 0.1 mol</h3>

Explanation:

To find out the number of moles we use the formula

$n = \frac{m}{M} \\$

where

n is the number of moles

M is the molar mass

m is the mass of the substance

From the question

m = 400 g

M of Ca = 40 g/mol

We have

$n = \frac{40}{400} = \frac{1}{10} \\$

We have the final answer as

Hope this helps you

4 0

4 years ago

When was helium discoved?

andrey2020 [161]

It was discovered in 1868.i hope this helps you .

4 0

4 years ago

A sample of tin (Cp = 0. 227 J/gâ€˘Â°C) is placed in a freezer. Its temperature decreases from 15. 0Â°C to â’10. 0Â°C as it rele

pshichka [43]

Taking into account the definition of calorimetry, the mass of the sample is 478.41 grams.

Calorimetry is the measurement and calculation of the amounts of heat exchanged by a body or a system.

Sensible heat is defined as the amount of heat that a body absorbs or releases without any changes in its physical state (phase change).

So, the equation that allows to calculate heat exchanges is:

Q = c× m× ΔT

where Q is the heat exchanged by a body of mass m, made up of a specific heat substance c and where ΔT is the temperature variation.

In this case, you know:

Q= -543 J because the energy is releases
c= 0.227 $\frac{J}{gC}$
m= ?
ΔT= Tfinal - Tinitial= 10 C - 15 C= -5 C

Replacing:

-543 J= 0.227 $\frac{J}{gC}$ × m× (-5 C)

Solving:

$m=\frac{-543 J}{0.227 \frac{J}{gC}x(-5 C)}$

<u><em>m=478.41 grams</em></u>

In summary, the mass of the sample is 478.41 grams.

Learn more about calorimetry:

4 0

3 years ago

What is the key difference between element and compound

olga nikolaevna [1]

Answer and Explanation:

DIFFERENCE BETWEEN ELEMENT AND COMPOUND :

An element is made up of same type of atoms whereas a compound is made up of different type of atoms.
A compound can be separated by chemical methods but an element can not be separated by chemical methods.
Example of element is Cu Fe C and example of compound is $CO_2\ NO_2 \ NH_3$ etc
Elements can not be split into different substances but compound can be splited into different substances

3 0

3 years ago

880.7 decameters<br> as hectometers

Butoxors [25]

Answer:??

Explanation:

4 0

3 years ago