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
dolphi86 [110]
2 years ago
5

HELP! ASAP!!! WILL MARK BRAINLIEST!!

Chemistry
2 answers:
san4es73 [151]2 years ago
8 0

Answer:

Rb

Alkali Metals are Group 1 so

Rb it isnt Hydrogen because it is a gas

Explanation:

mojhsa [17]2 years ago
6 0
Rubidium is the chemical element with the symbol Rb and atomic number 37. Rubidium is a very soft, silvery-white metal in the alkali metal group. Rubidium metal shares similarities to potassium metal and caesium metal in physical appearance, softness and conductivity. Rubidium cannot be stored under atmospheric oxygen, as a highly exothermic reaction will ensue, sometimes even resulting in the metal catching fire.
You might be interested in
Why is it good to use blue and red litmus for the same solution?
Neko [114]

Under acidic conditions, the solution is red, and under alkaline conditions, the solution is blue. Chemical reactions other than acid-base can also cause a color change to litmus paper. For instance, chlorine gas turns blue litmus paper white – the litmus dye is bleached, because of presence of hypochlorite ions.

6 0
3 years ago
Solutions
nordsb [41]
D. Yep, D is the answer, alright.
3 0
3 years ago
How does the product of burning differ from the original material​
guajiro [1.7K]

Answer:

Burning is a chemical process by which two atoms or molecules will combine with each other. In burning, the two atoms or molecules will combine and release energy.When the molecules combine and release energy, it is released in the form of heat and often light.Different compounds react with oxygen differently – some contain lots of heat energy while others produce a smaller amount.The bigger the fuel load, the more intense the fire will be in terms of heat energy output. Moisture content: If the fuel isn't dry enough, it won't burn.Flames consist primarily of carbon dioxide, water vapor, oxygen and nitrogen. If hot enough, the gases may become ionized to produce plasma. Depending on the substances alight, and any impurities outside, the color of the flame and the fire's intensity will be different.

7 0
2 years ago
Write the proper word equation to express the following chemical reaction: 4Fe (s) + 3Sn(NO3)4 (aq) arrow 4Fe(NO3)3 (aq) + 3Sn (
Lapatulllka [165]
The word equation for this reaction is:

Iron + Tin nitrate → Iron nitrate + Tin
3 0
3 years ago
Suppose you have 100 grams of a radioisotope with a half-life of 100 years. How much of the isotope will you have after 200 year
Ulleksa [173]
        Amount Remaining     Years       #half lives 
             100g                            0                 0
             50 g                           100                1                  
             25g                            200               2                      




8 0
3 years ago
Read 2 more answers
Other questions:
  • Which can lead scientists to change a theory that has already been accepted? Check all that apply.
    15·2 answers
  • Explain the neutralization of vitamin c with sodium hydrogen carbonate?
    13·2 answers
  • Phosphine, PH₃, is a colorless, toxic gas that is used in the production of semiconductors as well as in the farming industry. W
    10·1 answer
  • 10. Convert 4.25 x 108 km) to Liters (show you work)
    10·1 answer
  • In an energy pyramid, which level has the most available energy?
    10·1 answer
  • How do I do this Phenomenal Based writing: Dont mess up the cookies worksheet? I need the answers asap please!!
    6·1 answer
  • What is the symbol for the most common isotope of tin
    9·2 answers
  • Saturn has spectacular rings of ____ and ____ that surrounded the planet.
    7·2 answers
  • 3. How is the potential energy of any object released? What happens to this released energy? I
    6·1 answer
  • Balance the following equation:<br> -_MgCO3 → _MgO + __CO2
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!