1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
e-lub [12.9K]
3 years ago
11

The atmosphere is composed of several gases. The gas which is present in the largest quantity is:

Chemistry
2 answers:
Kamila [148]3 years ago
8 0

Answer 1: Option(B) Nitrogen

Explanation:

The earth's atmosphere comprises of different gases which are Nitrogen(78%), plenty of Oxygen(21%), argon(0.9%) and remaining are the methane, gaseous oxides etc. So Nitrogen is present in largest quantity in the earth's atmosphere.

Answer 2: Option(D) Ozone

Explanation:

The Stratosphere is the second lowest layer of the earth. It contains the ozone which absorbs the UV rays coming form the sun because of which there is a rise in temperature than other layers.

Answer 3: Option(A) Heat from the earths core

Explanation:

The heat energy coming from the Sun heats the earth non-uniformly that results in the hot and cold area on the earth causes low and high air pressure.The Sun heats the earth core. When there is a hot weather the land near the sea becomes hot in comparison with the sea results in the hot wind flow from the sea.

slega [8]3 years ago
4 0
1. <span>B. Nitrogen is the greatest component of the gases in Earth's atmosphere

2. </span><span>D. Ozone absorbs ultraviolet radiation

3. I would guess A. heat from the Earth's core but I'm not completely sure</span>
You might be interested in
ASAPPP EASY!!!!!!!!!!
zhenek [66]
Did you know conventional argult culture has increased greenhouse gas emissions, soil erosion, water pollution, and threatened humans health. Let’s stop this from harming our environment and take action about this today. Organic farming has a smaller carbon footprint, conserves and builds soil, replenishes natural ecosystems for cleaner water and air, all with a toxic pesticide residues.
5 0
3 years ago
Please help
lisabon 2012 [21]

Answer:

There are 2 hydrogen atoms, one magnesium atom, and 5 atoms in total.

Explanation:

We are given a compound in formula form. To make things easier to understand, we can first convert this to the name of the compound.

  • When a compound contains one or more elements in parentheses, these are usually a <u>polyatomic ion</u>.
  • Polyatomic ions are ions made up of two or more elements with a positive or negative charge over the entire ion. Commons examples of these NH₄⁺ (ammonia) and HCO₃⁻ (bicarbonate).
  • You can combine metals with polyatomic ions to create commonly known compounds, such as baking soda. The chemical name for baking soda is sodium bicarbonate, so we can combine Na (sodium) with HCO₃⁻ (bicarbonate) and create sodium bicarbonate: NaHCO₃.

This compound is one magnesium atom bonded to two hydroxide ions.

  • Hydroxide is the compound between one hydrogen atom and one oxygen atom. The compound overall adopts a negative charge of 1.
  • If we have one hydrogen atom and one oxygen atom, the most electronegative atom is written first in chemical formulas. Therefore, the symbol for Oxygen (O) goes first.
  • Then, write in the hydrogen atom directly after the O symbol: OH.
  • Finally, since we have a negative charge on the ion, we need to play a negative sign as a superscript for the compound. Therefore, this becomes OH⁻.

Now, we need to determine the charge on the Magnesium atom which is determined from the amount of valence electrons the atom has.

  • On a periodic table, the symbol for Magnesium is Mg and this element has 2 valence electrons.
  • In order to fulfill the Octet Rule, the It is more likely to give up 2 electrons to a nonmetal than it is to gain 6, so we can safely assume that the charge is ²⁺.
  • We need to use the criss-cross technique to transfer the charges between the element and the ion, so the negative 1 charge goes to the Mg, which does not appear (negative 1 or positive 1 are implied) and since the magnesium has a charge of positive 2, this is the subscript for the hydroxide ion.
  • Therefore, our compound becomes Mg(OH)₂, and we have labeled this as magnesium hydroxide.

Now, to the number of atoms:

  • The new charge on Mg is 1-, so there is only one atom of Mg.
  • The charge is 2+ on the OH ion, so there are two atoms of H and two atoms of O.
  • Two atoms of oxygen, two atoms of hydrogen, and one atom of magnesium add up to be five atoms in total.
3 0
3 years ago
Which of the following substances will cause the greatest temperature change if the same amount of each substance is added to 1.
Masja [62]
The answer is FeCl3, just took the quiz
5 0
3 years ago
Read 2 more answers
¿Que científico estableció que los electrones giran alrededor de un núcleo en varios niveles de energía?
svetlana [45]
Niels Bohr, hope it helps
6 0
3 years ago
When 3.54 grams of phosphorus react with excess oxygen gas to produce diphosphorus pentoxide, the percent yield is 84.1%. What w
NARA [144]
The answer to this question is 6.82
7 0
3 years ago
Other questions:
  • Balance the chemical equation below using the smallest possible whole number stoichiometric coefficients NH3(g) + O2(g) + CH4(g)
    13·1 answer
  • Which elements can form acidic compounds? ​
    6·2 answers
  • 19pts please help How many grams of CO are needed to react with an excess of Fe203 to produce 225.5 g Fe? Number after the symbo
    5·1 answer
  • Two students pull a box with force of 100 N to the left and 200 N to the right.
    6·1 answer
  • Which body changes occur during adolescence?
    13·2 answers
  • Calculate the heat (in calories) released when 115 g of CHCl3 changes from a liquid to a solid at
    7·1 answer
  • Why is methanol written as ch3oh instead of ch4o?​
    5·1 answer
  • You’ve been waiting for the bus and your hands become cold. When you get onto the bus and sit down, you put your hands under you
    11·2 answers
  • How many significant figures in 100000 g?
    15·1 answer
  • Which of the following is true of electronegativity?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!