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
melamori03 [73]
3 years ago
9

All please guys help me please ​

Chemistry
1 answer:
MA_775_DIABLO [31]3 years ago
7 0

Explanation:

<em>Percentage </em><em>composition </em><em>by </em><em>mass</em>

  1. <em>2</em><em>1</em><em>.</em><em>2</em><em> </em><em>%</em>
  2. <em>4</em><em>6</em><em>.</em><em>6</em><em>%</em>
  3. <em>3</em><em>5</em><em>%</em>
  4. <em>2</em><em>1</em><em>.</em><em>2</em><em> </em><em>%</em>
You might be interested in
Determine the mass in grams of each of the following:
lukranit [14]

Answer:

A) 9.60 g

B) 19.2 g

C) 28.8 g

Explanation:

A) Elemental oxygen mass is 16.00 g/mol, so in 0.600 mol of elementar oxygen there is 9.60 g

0.600 mol x 16.00 g/mol=9.60 g

B) Oxygen molecular mass is 32.00 g/mol, so in 0.600 mol of oxygen molecules there is 19.2 g

0.600 mol x 32.00 g/mol=19.2 g

C) Ozone molecular mass is 48.00 g/mol, so in 0.600 mol of oxygen molecules there is 28.8 g

0.600 mol x 48.00 g/mol=28.8 g

7 0
3 years ago
Compared to the charge and mass of a proton, an electron has _____.
Darya [45]

Answer:

1/1836

Explanation:

An electorn's mass is so little that it is negligible.

7 0
3 years ago
How does a physical change differ from a chemical change?
k0ka [10]

A physical change doesn't change what the substance is but for chemical change a new substance is formed and energy is either given off or absorbed.

5 0
4 years ago
Read 2 more answers
PLS PLS HELP<br> this is science
Ne4ueva [31]

Answer:

its minerals :)

Explanation:

i hope its right

alsooo heyyyy

8 0
3 years ago
Read 2 more answers
What is the function of these organelles?
Vladimir [108]

Answer:

endoplasmic reticulum:

✔ helps in the production and movement of materials

Golgi body:

✔ packages and distributes materials in and out of cell

mitochondrion:

✔ supplies energy that the cell uses

ribosome:

✔ produces proteins for the cell

Explanation:

took test :D

5 0
4 years ago
Read 2 more answers
Other questions:
  • If 6.51 g of copper is reacted with 28.4 g of silver nitrate, the products will be copper (ii) nitrate and silver metal. what is
    7·2 answers
  • if 100. mL of 0.800 M Na2SO4 is added to 200. mL of 1.20 M NaCl, what is the concentration of Na+ ions in the final solution? As
    7·1 answer
  • Which of the Group 13 elements is not a metal? Question 28 options: boron aluminum gallium indium
    8·2 answers
  • Metal ions are typically [a.larger than b.smaller than c.equal in size to] their corresponding neutral atoms. Nonmetal ions are
    11·2 answers
  • Calculate the mass of Carbon Monoxide having
    8·1 answer
  • Electric cables for your lamp have a plastic rubber coating around the wire. Explain why this material surrounds the metal cable
    14·1 answer
  • What is Climate Change and how can it effect plants?
    13·2 answers
  • Why are there different types of matter.
    14·1 answer
  • Que tipos de conocimientos científicos y no científicos conoces?​
    10·1 answer
  • Determine the quantity of bromine atoms in 18.0g of HgBr2 (using factor label method)
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!