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
Luba_88 [7]
3 years ago
9

In the compound aluminum oxide, which is the cation?

Chemistry
1 answer:
8090 [49]3 years ago
7 0

Answer:

-Aluminum Oxide: The cation is Al3+ and the anion is O2-. The sum of the charges for aluminum oxide is 2(3+) + 3(2-) = 0. Thus, the formula is Al2O3. An ionic compound is named using the name of the cation followed by the name of the anion, eliminating the word ion from each.

Explanation:

You might be interested in
Calcium atoms have two electrons in the outermost shell. As a result, you would expect calcium to form ions with a charge of
mixer [17]
Calcium will form ions with a charge of +2
5 0
3 years ago
Convert 90.23 kPa into atm
svlad2 [7]

Answer:

The answer is

<h2>0.89 atm </h2>

Explanation:

To convert from kPa to atm we use the conversion

101.325 kPa = 1 atm

If

101.325 kPa = 1 atm

Then

90.23 kPa will be

\frac{90.23}{101.325}  \\  =0.89050086...

We have the final answer as

<h3>0.89 atm</h3>

Hope this helps you

6 0
3 years ago
When two air masses meet what do they form?
Yanka [14]

Answer:

ice. ......

Explanation:

because it cold

6 0
3 years ago
Read 2 more answers
If an atom of Oxygen (8 protons, 8 neutrons, and 8 electrons) gains two electrons, what is the charge of the ion formed?
Alexxx [7]

Answer:

It becomes negative

Explanation:

protons carry a positive charge

neutrons carry a neutral charge

electrons carry a negative charge

if we add 2 more electrons, the charge of the ion becomes negative

thank you.

4 0
3 years ago
Consider the reaction described by the following chemical equation.
oee [108]

Answer:

Q = -897 kJ/mol

Explanation:

From the given information:

The heat released Q = -65.9 kJ

To start with the molar mass of H_2O_2 = 2 × (molar mass of H) + 2 × (molar mass of O)

= (2 × 1.008) + (2 × 16.0 )

= 34.016 g/mol

However, given that:

mass of H_2O_2  2.50 g

The number of moles of H_2O_2  = \dfrac{mass}{molar \ mass}

= \dfrac{2.5}{34.016}

= 7.349 \times 10^{-2} \ mol

Finally; Using the formula:

\Delta H = \dfrac{Q}{number \ of \ moles}\\ \\ Q = \dfrac{-65.9 \ kJ}{7.349 \times 10^{-2} \ mol}

Q = -897 kJ/mol

6 0
2 years ago
Other questions:
  • When the following equation is balanced, what is the coefficient for HBr?
    11·1 answer
  • What types of energy is the potential energy in the match transformed into when a person strikes and lights a match?
    5·2 answers
  • How do the properties of the elements change as you move across a period on a periodic table from left to right?
    9·1 answer
  • What shape would a molecule of carbon tetrachloride have?
    15·2 answers
  • Which of the following chemical symbols represents the element silver?
    12·2 answers
  • If i have a 50 liter container that holds 45 moles of gas at a temperature of 200 degrees C, what is the pressure inside the con
    11·1 answer
  • If the pressure inside the cylinder increases to 1.3 atm, what is the final
    7·1 answer
  • Can you help me please​
    14·1 answer
  • Calculate ΔH when 2 moles of ethanol (C2H5OH) reacts with excess oxygen according to the following thermochemical equation?C2H5O
    10·1 answer
  • What is significant figure of 0.0048?​
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!