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
strojnjashka [21]
3 years ago
11

Question 4 of 10

Chemistry
2 answers:
puteri [66]3 years ago
8 0

Answer: neon and methane

Nastasia [14]3 years ago
6 0

Answer:

Neon and Methane

Explanation:

Nitrogen and Oxygen made up way over half of the atmosphere so it's without a doubt, not those two. Precisely, Nitrogen makes up 78% of the atmosphere while oxygen makes up 21%

You might be interested in
Help with number 20-22 please
SSSSS [86.1K]
18. c
19. A
20. decomposition reaction 
21. 4 
22. 0.04%

4 0
3 years ago
If the formula for potassium chlorate is KClO3 and the formula for magnesium fluoride is MgF2, then what isthe formula for magne
mr_godi [17]
The formula for magnesium chlorate is Mg(ClO3)2.
5 0
3 years ago
Calculate the concentration of h3o⁺ in a solution that contains 5.5 × 10-5 m oh⁻ at 25°c. Identify the solution as acidic
Andreas93 [3]

Answer: [H_3O^+]=1.6\times 10^{-10}M , the solution is basic

Explanation:

pH or pOH is the measure of acidity or alkalinity of a solution.

Acids have pH ranging from 1 to 6.9 and bases have pH ranging from 7.1 to 14.Neutral substances have pH of 7.

pH=-\log [H_3O^+]

pOH=-\log[OH^-]

Putting in the values:

pOH=-\log[5.5\times 10^{-5}]

pOH=4.2

pH+pOH=14

pH=(14-pOH)=(14-4.2)=9.8

9.8=-\log [H_3O^+]

[H_3O^+]=1.6\times 10^{-10}M

As pH is more than 7, the solution is basic

7 0
3 years ago
Identify the type of reaction described in the sentence below. then, write a chemical equation. be sure to specify the states of
natulia [17]

Answer : The type of reaction described in the sentence is Synthesis or Combination

Explanation :

The balanced equation for the reaction between Phosphorous and Oxygen gas can be written as

4P (s) + 5O_{2} (g) ------>  P_{4} O_{10}  (s)

From the above equation we can see that there are two different reactants ( P and O₂ ) which are combining with each other to give a single product.

This type of reaction is known as Combination or Synthesis.

A general form of Synthesis reaction is given below.

A + B ---->  AB

Here we can conclude that a synthesis / combination reaction is the one where 2 or more reactants combine together to give only one product .

6 0
3 years ago
How many different substituents are required on a carbon atom for it to be chiral?
zheka24 [161]

Four different substituents are required on a carbon atom for it to be chiral.

<h3>What is Chiral Carbons ?</h3>

The carbon atom which is attached with four different types of group of atoms or atoms is called Chiral carbon. Chiral molecules are non superimposable on their mirror images. Chiral carbon is also called asymmetric carbon.

Example:

Br - \underset{H} {\underset{|} {\overset{CH_3}  {\overset{|}{C}}}} - Cl

In the above example we can see that carbon atom has 4 different group attached with it that is Br, Cl, H, CH₃.

Thus from the above conclusion we can say that Four different substituents are required on a carbon atom for it to be chiral.

Learn more about the Chiral carbon here: brainly.com/question/1195366

#SPJ4

6 0
2 years ago
Other questions:
  • What is the smallest scale increment of the ruler shown in fig. 4, above?
    15·2 answers
  • I need help!!!! Plz help me with the above question
    15·1 answer
  • When comparing the reaction rates for the SN2 substitution of two alkyl halides, the more hindered substrate will undergo substi
    11·1 answer
  • BF3 type of compound
    15·1 answer
  • Alka seltzer and water from
    11·1 answer
  • The table below shows the number of sub-atomic particles in an atom of sodium. Sub-atomic Particles Sub-atomic Particle Number P
    13·2 answers
  • How many moles of O2 are needed to react completely with 35.0 mol of
    11·1 answer
  • I gave brainlest:: answer this .....​
    6·1 answer
  • Which of the following is not an alkali?
    8·1 answer
  • How many atoms can be found in a sample of 75g of silicon
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!