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
GREYUIT [131]
3 years ago
7

What is the percent composition of Ba(OH)2?

Chemistry
2 answers:
iren2701 [21]3 years ago
6 0
%BA= 137.3/171.3=80.2%

%O= 32.0/171.3=18.7%

%H= 2.0/171.3=1.1%


Alex17521 [72]3 years ago
3 0
Element Symbol Atomic Mass
Barium Ba 137.327
Hydrogen H 1.00794
Oxygen O 15.9994


Hope this helps, good luck
You might be interested in
Haw many H atom in tow H2O molecules
allochka39001 [22]
Two hydrogen and two oxygen multiply for two
7 0
2 years ago
Gases with high molecular weights diffuse more slowly than gases with lower molecular weights.
Rom4ik [11]
The answer to this item is TRUE. This can be explained through the Graham's law. This law states that the rate at which gases diffuse is inversely proportional to the square root of their densities which is also related to their molecular masses. 
7 0
3 years ago
Read 2 more answers
What is the correct formula for combining Mg2+ and Br1+
True [87]

Answer: The correct formula is MgBr_2

Explanation:

For formation of a neutral ionic compound, the charges on cation and anion must be balanced. The cation is formed by loss of electrons by metals and anions are formed by gain of electrons by non metals.  

Here magnesium is having an oxidation state of +2 called as Mg^{2+} cation and bromine Br^{-} is an anion with oxidation state of -1. Thus they combine and their oxidation states are exchanged and written in simplest whole number ratios to give neutral MgBr_2.

The cations and anions being oppositely charged attract each other through strong coloumbic forces and form an ionic bond.

6 0
2 years ago
Which of the following radiations consists of a helium nucleus emitted by some radioactive substances? Alpha radiation Beta radi
erica [24]

Answer: Alpha radiation

Explanation: Alpha decay : When a larger radioactive nuclei decays into smaller nuclei by releasing alpha radiation, the mass number and atomic number is reduced by 4 and 2 units respectively.

_Z^A\textrm{X}\rightarrow _{Z-2}^{A-4}Y+_2^4\textrm{He}


Beta decay : When a larger radioactive nuclei decays into smaller nuclei by releasing beta radiation, the atomic number is increased by 1 unit.


_Z^A\textrm{X}\rightarrow _{Z+1}^{A}Y+_{-1}^0e


Gamma decay : When a larger radioactive nuclei decays into smaller nuclei by releasing gamma radiation, the mass number remains same.

_Z^A\textrm{X}^*\rightarrow _Z^A\textrm{X}+_0^0\gamma

5 0
3 years ago
The electron configuration 1s2 is correct for an element that has 2 electrons, both in the first principle energy level
Molodets [167]

Answer:

The answer is True

Explanation:

I got it right on my quiz, hope this helps!

5 0
3 years ago
Other questions:
  • Isoflurane, shown here, is a common inhalation anesthetic. write its molecular formula and calculate its percent composition by
    7·1 answer
  • Which two elements in the periodic table have the same number of electrons in their outer orbitals?
    9·1 answer
  • List the elements Cs, Ca, Ne, Na, Ar in order of decreasing first ionization energy
    7·1 answer
  • Agar is used to culture bacteria and as a medium in electrophoresis. The agar used in this Petri dish is a by-product of an unli
    13·1 answer
  • Which state of matter characterized by having a definite shape and a definite volume?
    9·1 answer
  • A piece of notebook paper
    14·2 answers
  • An analytical chemist is titrating of a solution of hydrazoic acid with a solution of . The of hydrazoic acid is . Calculate the
    8·1 answer
  • A representation of chemical reaction​
    10·1 answer
  • Which type of circuit has a string of lights and one light goes out but the others stay lit
    10·1 answer
  • How is energy transferred and transformed
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!