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
QveST [7]
2 years ago
14

Is the equation balanced or unbalanced? Explain. AI + O2 --> AI2O3

Chemistry
1 answer:
anastassius [24]2 years ago
6 0

Answer:

unbalanced..........

You might be interested in
What is the pH of a solution that is 0.40 M NaBrO and 0.50 M HBrO (hypobromous acid) (Ka for HBrO = 2.3 x 10^-9)
Pie

Answer

pH=8.5414

Procedure

The Henderson–Hasselbalch equation relates the pH of a chemical solution of a weak acid to the numerical value of the acid dissociation constant, Kₐ. In this equation, [HA] and [A⁻] refer to the equilibrium concentrations of the conjugate acid-base pair used to create the buffer solution.

pH = pKa + log₁₀ ([A⁻] / [HA])

Where

pH = acidity of a buffer solution

pKa = negative logarithm of Ka

Ka =acid disassociation constant

[HA]= concentration of an acid

[A⁻]= concentration of conjugate base

First, calculate the pKa

pKa=-log₁₀(Ka)= 8.6383

Then use the equation to get the pH (in this case the acid is HBrO)

pH=8.6383+\log_{10}(\frac{0.40\text{ M}}{0.50\text{ M}})=8.5414

8 0
1 year ago
Science quiz, i think its chem... grade 8
lina2011 [118]

Answer:

Everything to the right of the arrow is a product.

Explanation:

6 0
3 years ago
Read 2 more answers
Arrange the following elements from greatest to least tendency to accept an electron.? Rank from greatest to least tendency to a
shtirl [24]
Your answer is correct, I do not understand why it would be wrong.
The electron accepting tendency of an atom is known as the tendency of an atom to accept an electron. This is ranked on a scale of 0.7 to 3.98 and these species have the following values:
F: 3.98
O: 3.44
C: 2.55
Be: 1.57
Li: 0.98
3 0
3 years ago
Read 2 more answers
There are two isotopes of an unknown element, X-19 and X-21. The abundance of X-19 is 14.55%. A weighted average uses the percen
alekssr [168]

Answer:

2.765amu is the contribution of the X-19 isotope to the weighted average

Explanation:

The average molar mass is defined as the sum of the molar mass of each isotope times its abundance. For the unknown element X that has 2 isotopes the weighted average is defined as:

X = Mass X-19 * Abundance X-19 + MassX-21 * Abundance X-21

The contribution of the X-19 isotope is its mass (19.00 amu) times its abundance (14.55% = 0.1455). That is:

19.00amu * 0.1455 =

2.765amu is the contribution of the X-19 isotope to the weighted average

8 0
2 years ago
What are the names of the components (each shown with a leader and a line) of a circuit shown in the diagram? Please help!!!!
alekssr [168]
Maybe: Battery, wire, lamp and switch
6 0
3 years ago
Other questions:
  • a hydrogen-filled balloon was ignited and 1.60g of hydrogen reacted with 12.8g of oxygen. how many grams of water vapor were for
    14·1 answer
  • Why do the ocean currents move from the equator towards the poles?
    12·1 answer
  • What is the percent composition of carbon in caffeine (C₈H₁₀N₄O₂)?
    6·1 answer
  • An atom has 3 protons, two electrons and 1 neutrons. Describe this atom using as many vocabulary words
    9·1 answer
  • If 200.0 g of copper(II) sulfate react with an excess of zinc metal, what is the theoretical yield of copper?
    6·2 answers
  • Which sentence is a scientific statement? A. There is a substance around us that cannot be detected. B. Kids should go to school
    13·1 answer
  • What is the formula for potassium iodite? How did you get it?
    11·1 answer
  • Which pair of elements is most apt to form an ionic compound with each other?
    5·1 answer
  • How many grams in 1.000 moles of oxygen gas?
    13·1 answer
  • A chemical change always involves...
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!