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
S_A_V [24]
3 years ago
9

Can someone please answer this and if you dont know dont answer (:

Chemistry
2 answers:
anyanavicka [17]3 years ago
8 0

Answer:  1- Alkali metals

                2- Noble gases

                3- Halogens

Explanation:

Softa [21]3 years ago
8 0

Answer:

???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????

Explanation:

You might be interested in
How to find the relationship between slope and speed
devlian [24]
You can study article about slope and speed 
3 0
3 years ago
Which represents the correst equilibrium constant expression for Cu(s) +2Ag<------> Cu^2 (aq) +2Ag(s)
nataly862011 [7]

Answer:

Kc=\frac{(Cu2)(Ag)^2}{(cu)(Ag)^2}

Explanation:

because it is products / reactants  

Hope this helps:)

7 0
3 years ago
If a gas’s [kelvin] temperature doubles and it’s volume then remains the same, then what happens to it’s pressure?
Tamiku [17]

Answer:

The final pressure will double i.e it will be twice the initial pressure

Explanation:

T1 = T

T2 = 2T ( twice the original T)

P1 = P

P2 =?

Since the volume is constant,

P1/ T1 = P2 /T2

P/ T = P2 / 2T

Cross multiply

T x P2 = 2T x P

Divide both side by T

P2 = (2T x P) / T

P2 = 2P

Therefore, the final pressure will double i.e it will be twice the initial pressure

5 0
3 years ago
3. What are vaccines? Are there different types?​
Inga [223]

Answer:Four types of vaccines are currently available: Live virus vaccines use the weakened (attenuated) form of the virus. The measles, mumps, and rubella (MMR) vaccine and the varicella (chickenpox) vaccine are examples

4 0
3 years ago
Read 2 more answers
New technologies have allowed buildings to become taller and heavier than ever before.This is an example of:
balu736 [363]

This is an example of "Skyscrapers".

Explanation:

  • Skyscraper is a high rise, tall multi storied  building of  that consist of about 40 floors inside it  that is mainly built for the corporate offices, commercial spaces and residential flats.
  • Buildings that are  higher than 150m height are known skyscrapers. They  have steel or iron  framework to its inner side of the building that supports its floor and walls.
  • Skyscrapers are made possible by the process of Bessemer process of mass production of steel beam.
5 0
3 years ago
Other questions:
  • The correct chemical equation for the reaction of sodium bromide and lead nitrate is: _________.
    6·1 answer
  • How many grams of ice at 0c could be melted by the additional of 0.400 kJ of heat
    9·1 answer
  • 15. What is the name of Fl-?<br> A)Fluorous ion<br> B)Fluorine<br> C)Fluoride ion<br> D)Fluorine ion
    8·1 answer
  • How many feet is 5642cm
    10·1 answer
  • Hydrogen has an average atomic mass of 1.008 amu and has 3 known isotopes
    11·1 answer
  • Polysaccharides always:a. are a string of 3 or more sugar molecules.b. contain lipids.c. are polymers.d. The first and second ch
    9·1 answer
  • Identify the type of sugar corresponding to each name. Sucrose Lactose Fructose Starch Glucose
    14·1 answer
  • ANSWER ASAP THIS IS 6TH GRADE SCIENCE! GIVING BRAINLIEST FIVE STARS ANS A HEART!
    7·1 answer
  • Ideally, the van 't Hoff factor should be equal to the number of ions that make up a compound. In reality, van 't Hoff factors t
    13·1 answer
  • Is hydrogen the only non-metal positive ion?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!