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inna [77]
3 years ago
11

If i rub a balloon on a piece of paper then hold it against my head my hair will stand up why is that?

Chemistry
1 answer:
Alex_Xolod [135]3 years ago
5 0
Static electricity is what occurs.
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WILL MARK BRAINLIEST!!!!
Lyrx [107]

Answer:

5.702 mol K₂SO₄

General Formulas and Concepts:

<u>Atomic Structure</u>

  • Reading a Periodic Table
  • Compounds
  • Moles

<u>Stoichiometry</u>

  • Using Dimensional Analysis

Explanation:

<u>Step 1: Define</u>

[Given] 993.6 g K₂SO₄

[Solve] moles K₂SO₄

<u>Step 2: Identify Conversions</u>

[PT] Molar Mass of K: 39.10 g/mol

[PT] Molar Mass of S: 32.07 g/mol

[PT] Molar mass of O: 16.00 g/mol

Molar Mass of K₂SO₄: 2(39.10) + 32.07 + 4(16.00) = 174.27 g/mol

<u>Step 3: Convert</u>

  1. [DA] Set up:                                                                                                       \displaystyle 993.6 \ g \ K_2SO_4(\frac{1 \ mol \ K_2SO_4}{174.27 \ g \ K_2SO_4})
  2. [DA] Divide [Cancel out units]:                                                                         \displaystyle 5.7015 \ mol \ K_2SO_4

<u>Step 4: Check</u>

<em>Follow sig fig rules and round. We are given 4 sig figs.</em>

5.7015 mol K₂SO₄ ≈ 5.702 mol K₂SO₄

7 0
3 years ago
Problem:
adelina 88 [10]

Answer:

it is Calcium (Ca)

4th period, 2nd group, 2 valence electrons

7 0
3 years ago
I know this isn't school-related but Is all-purpose flour the same as self-rising flour?
Rainbow [258]

Answer:yes

Explanation:

I am a baker owo

4 0
3 years ago
Read 2 more answers
An element with 11 neutrons, 11 protons, and 11 electrons would have a mass number o?
vova2212 [387]

The mass number of element  is 22.

The mass number is the sum of number of electrons/proton and number of neutron .

Mass number = number of proton/electron + number of neutrons

If an element with 11 neutrons, 11 protons, and 11 electrons then mass number is calculated as,

Mass number = number of proton/electron + number of neutrons

Mass number = 11 + 11 = 22

learn about element

brainly.com/question/14347616

#SPJ4

4 0
1 year ago
Which ion has the lower ratio of charge to volume? Explain.<br> (b) Sc³⁺ or Ca²⁺
WINSTONCH [101]

Ca²⁺ion has a lower ratio of charge to volume.

The charge density of an ion is defined as the ratio of the charge of an ion to its volume. Scandium ion has high charge density than calcium ions. The charge density of an ion is defined as the ratio of the charge of an ion to its volume.

Charge density also depends on the size of the ion and valence electrons. The volume of an ion increases with its size. It is inversely proportional to ion volume and directly proportional to charge magnitude. Scandium and calcium are IV periodic elements with atomic numbers of 21 and 20 respectively. Scandium loses three electrons and has a +3 charge and calcium is a divalent cation. Hence, the Scandium ion has high charge density than the calcium ion.

Learn more about charge density here: brainly.com/question/12968377

#SPJ4

4 0
1 year ago
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