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
lubasha [3.4K]
3 years ago
5

Find the formula for the compound that contains 72.40% iron and 27.60% oxygen.

Chemistry
1 answer:
Vikki [24]3 years ago
8 0
Oxygen = 16
Iron = 55.8
16 x 27.6% = 4.4 /4 = 1.1
55.8 x 72.4% = 40.4 /4 = 10.1
1 oxygen and 10 iron, so Fe10 O

You might be interested in
Select the supplements that are minerals.
Jet001 [13]
<h3> The supplements that are minerals are</h3>
  1. calcium
  2. sodium
  3. iron
  4. zinc

<u><em> Explanation</em></u>

  • calcium   and sodium  are major  minerals   which are required  by the body for

      calcium-  needed  for muscle,hearing bone and  for the support of synthesis and function of cells

     sodium-   is needed to control blood  pressure  and  also for proper  muscle and nerve  function

  • Zinc  and iron are  required   in trace and both are needed for good health



3 0
3 years ago
Butter melt when you heat it in a pan on the stove. Is this a chemical change or physical change? How can you tell?
choli [55]
It would be an physical change ; if you melt butter the butter goes from a solid to a liquid so therefore the physical state is changed.
4 0
3 years ago
What is wrong with this chemical<br> equation - N2 + O2 → 2N20,
LUCKY_DIMON [66]

Answer and Explanation:

I think the thing that is wrong with this chemical equation is that there is 0 by the 2 instead of the letter O.

Other than that, everything would be balanced.

<em><u>#teamtrees #PAW (Plant And Water)</u></em>

5 0
3 years ago
Read 2 more answers
HELP ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Iteru [2.4K]

Answer: The answer is Land heats up and cools down faster than water. I hope this helps! Have a wonderful day(:

7 0
3 years ago
Read 2 more answers
PLZ HELP ASAP
GrogVix [38]

Answer:

The second option

Explanation:

Speed is defined at the rate at which distance changes with time. It is scalar quantity and it is expressed as shown below:

              Speed = \frac{distance}{time}

At constant speed the rate of change of distance with time is the same. On the second graph, this is noticeable. Both distance and time change at the same rate.

7 0
3 years ago
Other questions:
  • Suppose you want to find out the temperature at which different kinds of liquid freeze. What do you need in order to perform the
    6·1 answer
  • An atom has the same number of wich two particles?
    6·1 answer
  • If body fats has a density of 0.94 g/mL and 3.0 liters of fat are removed, how many pounds of fat were removed from the patient?
    12·1 answer
  • What must differ between the atom of two different element easy 10 POINTS
    6·1 answer
  • How many neutrons does element X have if its atomic number is 26 and its mass number is 76
    9·1 answer
  • Spider monkeys live in a biome with many trees. They move around by swinging from tree to tree. Spider monkeys do not build a ne
    11·1 answer
  • How does sandstone change into quartzite
    14·1 answer
  • What physical process changed the geological area and composition of the Earth's oceans shown in the two pictures below
    14·2 answers
  • A beverage manufacturer wants to increase The solunility of carbon dioxide in its carbonated drinks as beverages produced which
    10·1 answer
  • Can someone please solve this????? It's true or false
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!