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
olga2289 [7]
3 years ago
9

This electron cloud model of aluminum has _______ energy levels with _______ electrons on its outer energy level. A) 1, 2 B) 2,

3 C) 3, 3 D) 4, 8

Chemistry
1 answer:
Talja [164]3 years ago
7 0

Answer:

C

Explanation:

Have anice day

You might be interested in
How many grams of Cl are in 465g of CaCl2
Rama09 [41]
2 ways to do this
a. find %Cl in CaCl2
2 x 35.45g/mole = 70.9g Cl
70.9g Cl / 110.9g/mole CaCl2 = 63.93% Cl in CaCl2
0.6963 x 145g = 92.7g = mass Cl

b. determine moles CaCl2 present then mass Cl
145g / 110.9g/mole = 1.31moles CaCl2 present
2moles Cl / 1mole CaCl2 x 1.31moles = 2.62moles Cl
2.62moles Cl x 35.45g/mole = 92.7g Cl
6 0
3 years ago
Read 2 more answers
What’s a predator? Are predators animals?
Setler [38]

Answer:

its an animal that preys on others

Explanation:

5 0
3 years ago
Read 2 more answers
What is the molarity of a 250.0 milliliter aqueous solution of sodium hydroxide that contains 15.5 grams of solute
tensa zangetsu [6.8K]

There are a number of ways to express concentration of a solution. This includes molarity. Molarity is expressed as the number of moles of solute per volume of the solution. The concentration of the solution is calculated as follows:

 <span> </span><span>Molarity = 15.5 g NaOH (1 mol NaOH / 40 g NaOH)  / .250 L solution</span>

<span>Molarity = 1.55 M</span>

5 0
3 years ago
How many moles of FeCl3 could be produced from 6.1 moles of Cly?<br> 2 Fe + 3Cl2 —&gt; 2 FeCl2
Black_prince [1.1K]

Answer:

4.1 moles of FeCl₃

Explanation:

The reaction expression is given as shown below:

         2Fe    +       3Cl₂   →    2FeCl₃

Number of moles of Cl₂  = 6.1moles

So;

  We know that from the balanced reaction expression:

                       3 moles of Cl₂ will produce 2 moles of FeCl₃

Therefore    6.1moles of Cl₂ will produce \frac{6.1 x 2}{3}   = 4.1 moles of FeCl₃

The number of moles is 4.1 moles of FeCl₃

6 0
2 years ago
1.) What are the two broad categories that elements can be divided into?
hoa [83]

Answer:

1) Metals and nonmentals

2) Elements: Oxygen (O_{2} \\) , Nitrogen (N_{2}

3) Compounds: Carbon Dioxide CO_{2}, Methane CH_{4}, Nitrogen DioxideNO_{2}

Explanation:

5 0
3 years ago
Other questions:
  • Separating a solid from a liquid by evaporating the liquid is called _____.
    8·1 answer
  • A certain ore is 20.7% nickel by mass. How many kilograms of this ore would you need to dig up to have 70.0 g of nickel?
    15·1 answer
  • What is the pH of a solution with a hydrogen concentration of [H+] = 1 x 10-4 M?
    15·1 answer
  • Carbon reacts with oxygen to produce carbon dioxide (CO2 (g), Delta.Hf = –393.5 kJ/mol) according to the equation below. Upper C
    8·2 answers
  • Diffusion occurs faster in gases than in liquids because _____.
    15·2 answers
  • A particular power source releases kinetic energy that is used to move giant
    12·2 answers
  • What is the electron configuration for fluorine?
    13·2 answers
  • I need help writing a LAB REPORT about NATURAL SELECTION
    12·1 answer
  • 27. Apply the Pauli exclusion principle, the aufbau princi-
    6·1 answer
  • A student makes an aqueous solution of sodium hydroxide. Which statement correctly identifies the two ions present in the solute
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!