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
tamaranim1 [39]
3 years ago
8

Pls some one help 1 mark question

Chemistry
1 answer:
Tatiana [17]3 years ago
7 0

Answer:

See below

Explanation:

Helium belongs to group VIII of the periodic table "Noble gases". It has only 1 electronic shell and that too contains 2 electrons according to the accommodation of the shell. Hence, it's electronic shell is complete. This is the reason, Helium is chemically unreactive.

\rule[225]{225}{2}

Hope this helped!

<h3>~AH1807 </h3>
You might be interested in
What type of bond is most likely being represented in row 1?
Angelina_Jolie [31]

ionic is the awnser have a blessed day

5 0
4 years ago
Read 2 more answers
When the pH of a solution is changed from 4 to 3,
Ivenika [448]
The correct answer is option 2. When the pH of a solution is changed from 4 to 3, the hydronium ions increases by a factor of 10.  pH is a scale used to measure the acidity or alkalinity of an aqueous solution. It can be used to calculate the amount of hydronium ions in the solution. It is expressed as: pH = -log [H+].

 

7 0
3 years ago
Imagine that you are a drop of water in the ocean. Describe a journey through the water cycle. Explain what causes you to change
Scorpion4ik [409]

<em>I am going to use first-person pronouns for this drop of water</em>

[ Start ] Liquid

     I start out as a drop of water among other drops of water in the ocean. I am currently a liquid as I can change shape easily but I do not float up.

[ Middle ] Gas

     The sun feels very hot. From the heat I turn into a gas, specifically water vapor, and float up into the sky.

[ Middle x 2 ] Solid

     In the sky I meet up with a lot of my past friends. We form a cloud, and as we grow heavier (the more the merrier) we start to fall down. It is extremely cold now, so we fall down as a solid, also known as hail or snow.

[ End ] Liquid

     We hit the ocean again as we fall from the sky. I'm so happy to be back home as a water drop again!

Have a nice day! - <u>Please note this is very simplified</u>

     I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)

- Heather

5 0
3 years ago
If 1.80 moles of NaCl was dissolved in enough water to make 3.60 L of solution, what is the Molarity?
sweet-ann [11.9K]

Answer:

0.5M

Explanation:

The equation for molarity is:

  • M = \frac{mol}{liters} ; where the "M" stands for molarity, the "mol" stands for moles of solute and the "liters" means the volume in liters of solution.

We are given that there are:

  • 1.80 moles of NaCl (the moles of solute)
  • 3.60 Liters of solution (the volume in liters of solution)

Now we just plug those numbers into the formula and get our answer:

  • M= \frac{1.80mol}{3.60L}= 0.5M

After doing the math and dividing the moles of solute by the liters of solution, we get that the molarity of the solution is 0.5M.

8 0
3 years ago
What type of molecule is acetylacetone?
Vlada [557]

Answer:

c. ketone

Explanation:

the answer is ketone

6 0
2 years ago
Other questions:
  • What is the PH of a solution if [H3O]= 1.7×10-3 M
    14·1 answer
  • Which pair of elements will form an ionic bond?
    13·2 answers
  • Making an apple pie calls for a reaction among certain ratios of ingredients. How is making an apple pie different from making l
    14·1 answer
  • What is the mass in grams of 0.700 moles of water
    15·1 answer
  • In the electron cloud model, electrons are said to be moving so fast that a person can _____.
    10·2 answers
  • Al2Cl6 (266.7 g/mol) is made by treating scrap aluminum with chlorine gas. If a reaction is run with 270 g of aluminum and 710 g
    10·1 answer
  • What change would you expect if you were to change the bromine atom to chloride atom​
    13·1 answer
  • Which of the following describes an impact of the specific heat of water on the planet?
    8·1 answer
  • The fluid in a car battery has a volume of 125 mL and a mass of 155 g what is the density
    14·2 answers
  • The volume occupied by a gas at STP is 250 L. At what pressure (in atm) will the gas occupy 1500 L, if the temperature is consta
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!