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mina [271]
3 years ago
5

Blank is the most abundant gas in earths atmosphere

Chemistry
2 answers:
mezya [45]3 years ago
8 0
The answer to your question is nitrogen :)
Hope this helped!
levacccp [35]3 years ago
7 0
Hey there!

There are many gases in the atmosphere - like greenhouse gases such as methane and carbon dioxide that lead to climate change, and water vapor and oxygen that help us. However, there's only one element that remains abundant throughout the entirety of the atmosphere, and that element is nitrogen. Nitrogen takes up nearly 78% of the atmosphere and leads in the composition of the atmosphere over an astounding 21% oxygen.

Hope this helps!
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A mechanical pencil has a mass of 47.4 grams. The volume of the pencil is 15.8 cubic centimeters. What is the density of the pen
BlackZzzverrR [31]
Density = mass over volume
so
47.4g/15.8cm^3
=3g/cm^3
4 0
3 years ago
Read 2 more answers
A gas has a volume of 5.00 L at 0°C. What final temperature, in degrees Celsius, is needed to change the volume of the gas to ea
Diano4ka-milaya [45]

Answer:

A = -213.09°C

B = 15014.85 °C

C = -268.37°C

Explanation:

Given data:

Initial volume of gas = 5.00 L

Initial temperature = 0°C  (273 K)

Final volume = 1100 mL, 280 L, 87.5 mL

Final temperature = ?

Solution:

Formula:

The given problem will be solve through the Charles Law.

According to this law, The volume of given amount of a gas is directly proportional to its temperature at constant number of moles and pressure.

Mathematical expression:

V₁/T₁ = V₂/T₂

V₁ = Initial volume

T₁ = Initial temperature

V₂ = Final volume  

T₂ = Final temperature

Conversion of mL into L.

Final volume = 1100 mL/1000 = 1.1 L

Final volume =  87.5 mL/1000 = 0.0875 L

Now we will put the values in formula.

V₁/T₁ = V₂/T₂

T₂ = V₂T₁ / V₁

T₂ = 1.1 L × 273 K / 5.00 L

T₂ = 300.3 L.K / 5.00 K

T₂ = 60.06 K

60.06 K - 273 = -213.09°C

2)

V₁/T₁ = V₂/T₂

T₂ = V₂T₁ / V₁

T₂ = 280 L × 273 K / 5.00 L

T₂ = 76440 L.K / 5.00 K

T₂ = 15288 K

15288 K - 273 = 15014.85 °C

3)

V₁/T₁ = V₂/T₂

T₂ = V₂T₁ / V₁

T₂ = 0.0875 L × 273 K / 5.00 L

T₂ = 23.8875 L.K / 5.00 K

T₂ = 4.78 K

4.78 K - 273 = -268.37°C

4 0
3 years ago
Josie observed that when water is boiled in an open beaker it completely disappears, leaving the beaker dry. What can Josie conc
-BARSIC- [3]
That when water is boiled in a open beaker and it disappears that it evaporates into the air
6 0
4 years ago
!! ANSWER QUICK !!
kari74 [83]

Answer:

I can use a dichotomous key. It helps me classify objects by sorting it out with "yes" and "no" questions.

or

I can use a Punnett Square. It helps me classify what genes the offspring will receive simply by figuring out the recessive and dominant genes as well as the hetzygous and homzygous.

Now give an example of which ever chart you choose by drawing it if that is required. For the Punnett Square label each of the squares Top right Hetzygous, top left dominant, bottom left recessive, bot-tom right homzygous. And for the dichotomous key put a 5-7 length branch showing the animals that have fur, can breathe under water, what cannot or doesn't have those traits. or something similar

Hopefully this helps :)

3 0
3 years ago
Read 2 more answers
How many protons and electrons are contained in an<br> atom of element 44?
vitfil [10]

Answer:

44

Explanation:

protons and electrons have the same number:)

5 0
4 years ago
Read 2 more answers
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