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
Levart [38]
3 years ago
10

Pls help me First person to Ans correctly will get branliest

Chemistry
2 answers:
Virty [35]3 years ago
6 0

Answer:

I think we should heat for it to decompose

Explanation:

when decomposed KCO3 becomes potassium carbonate water and co2

nignag [31]3 years ago
5 0

Answer:

do it by yourself 6637373

You might be interested in
which diagram best illustrates the ion-molecule attractions that occur when the ions of NaCl(s) are added to water
tatuchka [14]
Diagram is on the picture below.
Answer is: 1).
Sodium chloride is ionic compound and in the water dissociate in sodium cation (positive charge) and chloride anion (negative charge). Water is polar compound, oxagan has negative charge and hydrogen charge. Positive interact witn negative charge and negative with positive charge.

8 0
4 years ago
Calculate the molar mass of al2(cro4)3
just olya [345]
Molar mass  of Al₂(CrO₄)₃ is the mass of  one mole of  Al₂(CrO₄)₃
one mol =weight of Al₂(CrO₄)₃  in g /one mol
1) We have to find the atomic mass (in a periodic talbe) of the following elements  (in u)
Al=26.98 u
Cr=52 u
O=16 u

2)We calculate the atomic weight of Al₂(CrO₄)₃
Atomic weight (Al₂(CrO₄)₃)=2(26.98 u)+3[(52 u)+4(16 u)]=
=53.96 u+3(52 u+64 u)=53.96 u+3(116 u=53.96 u+348 u=401.96 u

3) One mole of (Al₂(CrO₄)₃ ) have 401.96 g of Al₂(CrO₄)₃ 

molar mass=401.96 g/ mol

answer: 401.96 g/ mol

8 0
3 years ago
R u a gurl hmmmmmmmmmm
posledela

Im a boy by the way...

5 0
3 years ago
Read 2 more answers
How many molecules of o2 are produced from 82g of h2o? <br> 2na2o2 +2h2o= o2 +4naoh
vovangra [49]

Answer:
857.2947

Explanation:

You start with what you’re given 82g of H20 and multiply by 1 mole and the actual grams of h20 which is 18.0 then you do the mole. 1 mol of O2 and 2 mol of H2O times 6.02 x 10^23

6 0
2 years ago
Choose the most reactive of the pair.<br> A. Ni+2<br> B. Li+
andriy [413]

Answer:

wd

Explanation:

h

6 0
3 years ago
Read 2 more answers
Other questions:
  • What is the Sun's life span?
    8·1 answer
  • 2. Suppose you placed two flasks, each filled with 100 milliliters of water, on a lab bench Then you covered one flask tightly w
    9·1 answer
  • Explain how gas pressure is measured
    9·2 answers
  • Nitric acid is a strong acid, sodium hydroxide is a strong base, and sodium nitrate is a soluble salt. Which of the following is
    15·1 answer
  • Dinitrogen tetraoxide, a colorless gas, exists in equilibrium with nitrogen dioxide, a reddish brown gas.
    6·1 answer
  • 2A → B + C
    14·1 answer
  • What is the molarity of sodium ions in a solution prepared by diluting 250. mL of 0.550 M Na2SO4 to 1.25 L? (A) 0.110 M (C) 0.22
    10·1 answer
  • Examples s name of thosse food items we can store for a month?​
    14·1 answer
  • How can you use continental drift hypothesis in a sentence
    15·1 answer
  • 7. What is the name of an element with 3 protons and 5 neutrons?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!