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
34kurt
3 years ago
12

20 points to whoever can answer these 3 questions correctly Pt. 3

Chemistry
1 answer:
skelet666 [1.2K]3 years ago
8 0

Answer:

Explanation:

You can't award 20 points once you have awarded 5.

One

2K + Cl2 ==> 2KCl

It's True

There are 2 Ks and Cl2 has 2 atoms making up on the left.

On the right, 1 molecule of KCl has 1 Potassium and 1 Cl. But there are 2 molecules so between the two of them, there's 2 Potassiums and 2 Cl

Two

The reactant side is the Left side. Cl2 means there are 2 Cl atoms making Cl2. Answer B

Three

False: There are 2 but read below.

I really don't know how to answer that. It's not qualified enough. There are a total of 2 Chlorines on the right hand side when there are 2 molecules. I think you are intended to answer False, but don't be surprised if you get it wrong.

You might be interested in
How many oxygen atoms are in 163 g of aluminum sulfate? 
djverab [1.8K]

Answer:

3.44 × 10²⁴ atoms of oxygen

Explanation:

Step 1: Calculate the moles corresponding to 163 g of Al₂(SO₄)₃

The molar mass of Al₂(SO₄)₃ is 342.15 g/mol.

163 g × 1 mol/342.15 g = 0.476 mol

Step 2: Calculate the molecules in 0.476 moles of Al₂(SO₄)₃

We will use Avogadro's number: there are 6.02 × 10²³ molecules of Al₂(SO₄)₃ in 1 mole of Al₂(SO₄)₃.

0.476 mol × 6.02 × 10²³ molecules/1 mol = 2.87 × 10²³ molecules

Step 3: Calculate the atoms of O in 2.87 × 10²³ molecules of Al₂(SO₄)₃

According to the chemical equation, the molar ratio of Al₂(SO₄)₃ to O is 1:12. The atoms of O are 12/1 × 2.87 × 10²³ = 3.44 × 10²⁴.

8 0
3 years ago
I know this is an odd question but does anyone want to be friends? I just wanna have a friend​
Aleks04 [339]

Answer:

yea wassup

Explanation:

5 0
3 years ago
Read 2 more answers
Which of the following is not tru about whorl patterns​
tamaranim1 [39]
You didn’t put any problem
6 0
3 years ago
How would you calculate the number of nanometers in 8.1 cm
devlian [24]
A: 8.1 • 10^7 nanometers

Because 1cm = 1 • 10^7 nm
So 8.1cm • (1 • 10^7 nm) = 8.1.10^7

4 0
4 years ago
After examining a cell with a microscope, a student concludes that it is a plant cell.
Scorpion4ik [409]

Explanation:

The student most likely observed both <u>(A) Vacuole</u> and <u>(C) Chloroplast</u> that led him to the conclusion, that the cell is a plan cell.

<u>Reason :</u>

In a plant cell, <u>Vacuole</u> occupies 70% to 90% of the total volume of the cell, making it easier to identify.

Chloroplast contains photosynthetic pigment called chlorophyll (green in colour), which is only found in plant cell.

7 0
4 years ago
Other questions:
  • Calculate the molar mass of a compound from the following information. You find that the freezing point of benzene is 5.5 degree
    5·1 answer
  • Which statement correctly describes the energy of the particles of the sample during interval BC
    12·2 answers
  • Give the complete ionic equation for the reaction (if any) that occurs when aqueous solutions of lithium sulfide and copper (II)
    10·1 answer
  • I HELP ASAP!!!!!!!
    14·2 answers
  • What is the relationship between temperature and kinetic energy?
    13·1 answer
  • A saturated solution occurs when
    6·1 answer
  • Following laws is an example of which of the following?
    15·1 answer
  • How many moles of nitrogen are required to produce 13.5 grams of NH3
    12·1 answer
  • Pls hellpppp it’s my final :((
    8·1 answer
  • A student plots the magnetic field of a bar magnet using a compass the student centers the bar magnet in the middle of a piece o
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!