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
Anit [1.1K]
3 years ago
9

Fill in the blanks to complete the statements about the gases in Earth’s atmosphere. Earth’s atmosphere is mostly nitrogen, whic

h makes up about 78 percent of the atmosphere, and , which makes up about 21 percent. in the air condenses around tiny particles, causing clouds and rain. The gas exists in small amounts but is very important because plants use it to make food.
Chemistry
2 answers:
vivado [14]3 years ago
8 0

Answer:

1) Oxygen

2) water vapor

3) carbon dioxide

nasty-shy [4]3 years ago
8 0

Answer:

Earth’s atmosphere is mostly nitrogen, which makes up about 78 percent of the atmosphere, and  

✔ oxygen

, which makes up about 21 percent.  

✔ water vapor

in the air condenses around tiny particles, causing clouds and rain. The gas  

✔ carbon dioxide

exists in small amounts but is very important because plants use it to make food.

Explanation:

You might be interested in
What is the mass of insoluble lead(II) iodide (461.0 g/mol) produced from 0.830 g of potassium iodide (166.00 g/mol) and aqueous
VikaD [51]

Answer:

C

Explanation:

7 0
2 years ago
In which state of the following compounds does nitrogen have the most positive oxidation state? group of answer choices no2 nano
Amiraneli [1.4K]

The compound nitrogen have most positive oxidation state is NO₂. The correct option is b.

<h3>What is oxidation state?</h3>

The total number of electrons gained or lost by an atom in order to form a chemical bond with another atom.

The charge on an ion is equal to the sum of the oxidation states of all the atoms in the ion. A substance's more electronegative elements are given a negative oxidation state.

A positive oxidation state is assigned to the less electronegative element.

Thus, the correct option is b, NO₂.

Learn more about oxidation state

brainly.com/question/11313964

#SPJ4

4 0
2 years ago
a sample of an unknown gas has a mass of 0.582g. it's volume is 21.3 mL a a temp of 100 degrees Celsius and a pressure of 754 mm
Zielflug [23.3K]

Answer:

Molar mass = 0.09 × 10⁴ g/mol

Explanation:

Given data:

Mass = 0.582 g

Volume = 21.3 mL

Temperature = 100°C

Pressure = 754 mmHg

Molar mass = ?

Solution:

(21.3 /1000 = 0.0213 L)

(100+273= 373 K)

(754/760 = 0.99 atm)

PV = nRT

n = PV/RT

n = 0.99 atm × 0.0213 L / 0.0821 atm. L. mol⁻¹. k⁻¹ × 373 K

n =0.02 mol/ 30.6

n = 6.5 × 10⁻⁴ mol

Molar mass = Mass/ number of moles

Molar mass = 0.582 g / 6.5 × 10⁻⁴ mol

Molar mass = 0.09 × 10⁴ g/mol

6 0
3 years ago
What is the boiling point of methanol, if ∆H°for vaporization is 35.3 kJ/mol, and ∆S° for vaporization is 105 J/mol K?
QveST [7]

Answer: 336.2K

Explanation:

The boiling point is obtained from the standard enthalpy and entropy of vaporization as shown in the image attached.

Standard enthalpy of vaporization=35.3KJmol-1=35.3×10^3 Jmol-1

Standard entropy of vaporization= 105 JMol-1K-1

The formula and details of the solution are shown in the image attached.

6 0
3 years ago
Magnesium sulfide + nitric acid net ionic
Oxana [17]

Answer:

MgSO_3(s) + 2 HNO_3(aq) rightarrow Mg^2+(aq) + 2 NO_3^-(aq) + SO_2(g) + H_2O(l) b.

Explanation:

The balanced net ionic equation for the reaction of magnesium sulfite with nitric acid is a. MgSO_3(s) + 2 HNO_3(aq) rightarrow Mg^2+(aq) + 2 NO_3^-(aq) + SO_2(g) + H_2O(l) b.

8 0
3 years ago
Other questions:
  • When an excited electron in an atom moves to the ground state, the electron
    13·2 answers
  • If the mass of a material is 104 grams and the volume of the material is 21 cm3, what would the density of the material be?
    13·1 answer
  • I2 is an example of a
    9·2 answers
  • 20 points - Chemistry - plzzz help
    6·1 answer
  • Mercury (II) oxide decomposes to mercury and oxygen. In the chemical equation below, what is the subscript, x, on the oxygen equ
    6·1 answer
  • What is sublimation and what type change is this?
    15·1 answer
  • (Please help ASAP I will mark brainliest!! (: )Which of the following describes what happens when a cell uses energy to transpor
    15·2 answers
  • Which is a form of kinetic energy?
    12·1 answer
  • Classify the chemical equations as being balanced or not balanced. 2CO 2NO → 2CO2 N2 6CO2 6H2O → C6H12O6 O2 H2CO3 → H2O CO2 2Cu
    13·1 answer
  • What type of bond is present in a copper wire
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!