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
KATRIN_1 [288]
3 years ago
6

I don’t know what this is this was a mistake?

Chemistry
1 answer:
umka21 [38]3 years ago
6 0
What do you mean? Do you need help with something?
You might be interested in
4. A compact disc has a diameter of 11.8 cm. What is the surface area of the disc in square centimeters? In square meters? [Area
d1i1m1o1n [39]
<span>The surface area is 109.3 square centimeters or 0.01093 square meters. The area formula requires that we use the radius of the disc. We can find the radius by diving the diameter by 2, so radius = 11.8/2 or 5.9 cm. We can use 3.14 as an approximation for π. The surface area is 3.14 * (5.9*5.9). Since the diameter is given in cm, the surface area units are in square centimeters. To convert to meters, divide any measurement in centimeters by 100, but we need to convert to "square" meters, so we need to divide our square centimeters by 100 * 100, or by 10,000. Dividing 109.3 by 10,000 results in 0.01093 square "meters".</span>
8 0
3 years ago
Using the following equation: 3H2SO4+ 2Fe -&gt; Fe2(SO4)3+ 3H2
Mariana [72]

Answer:

H₂SO₄

Explanation:

Given data:

Number of moles of H₂SO₄ = 15 mol

Number of moles of Fe = 13 mol

Which reactant is limiting reactant = ?

Solution:

Chemical equation:

3H₂SO₄  + 2Fe      →          Fe₂(SO₄)₃  + 3H₂

now we will compare the moles reactant with product.

               H₂SO₄         :          Fe₂(SO₄)₃  

                  3               :              1

                 15               :              1/3×15 = 5

                H₂SO₄         :            H₂

                  3               :              3

                 15               :              15

                Fe               :          Fe₂(SO₄)₃  

                  2               :              1

                 13               :              1/2×13 = 6.5

                Fe               :                H₂

                  2               :                 3

                 13               :              3/2×13 = 19.5

Number of moles of product formed by  H₂SO₄ are less thus it will act as limiting reactant.

8 0
3 years ago
HELPPPPPPPPPP MEEEEEEE
Monica [59]
50% - you have two bb pairs
5 0
2 years ago
Read 2 more answers
20 POINTS 2 QUESTIONS CAN YOU ANSWER THEM ???
Viktor [21]
2. <span>1/8 = (1/2)³ </span>
<span>so it's 3 half lives.</span>
7 0
3 years ago
Read 2 more answers
What is the electron shielding effect? What is the trend for it? How and why does it happen?
andriy [413]

Answer:

See explanation

Explanation:

In an atom, the inner electrons may shield the outer electrons from the attractive force of the nucleus. We, refer to this phenomenon as the <u><em>shielding effect</em></u>, It is defined as a decrease in the magnitude of attraction between an electron and the nucleus of an atom having more than one electron shell (energy level).

Shielding effect increases down the group due to addition of more shells but decreases across the period due to the increase in the size of the nuclear charge.

As the magnitude of shielding increases down the group, ionization of electrons becomes easier and the first ionization energies of elements decreases as we move down the group. Since shielding effect decreases across the period, the first ionization energies of elements increases across the period.

6 0
2 years ago
Other questions:
  • What role does hydrogen bonding play in liquid water and ice?
    15·1 answer
  • Draw the products formed when cholesterol is treated with [1] bh3·thf; [2] h2o2, −oh. indicate the stereochemistry around any st
    9·1 answer
  • An atom has 5 protons and 7 neutrons. What is its mass number?
    5·2 answers
  • What does the suffix -ide indicate when naming an ionic compound?
    9·1 answer
  • What is the most likely source of the carbon dioxide shown in the graph above?
    11·1 answer
  • Help quickkkk plssssssss
    5·2 answers
  • How many moles are in 11.0 grams of methane (CH4)?
    9·1 answer
  • Use Coulomb's Law to explain why and how atomic radius and IE have an inverse relationship.
    10·1 answer
  • It would most likely be difficult to collect a sample of which isotope? Pb-206 Po-214 U-234 Ra-226
    6·2 answers
  • 13) Calculate and Round to the correct number of significant digits. *
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!