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
nikdorinn [45]
3 years ago
10

Cans someone help me lol ;) WILL MARK BRAINLIEST!!

Chemistry
1 answer:
lidiya [134]3 years ago
3 0

Answer:

The answer to your question is:

Explanation:

1.- Noble gases are special because they do not react, they are stable because they have 8 electrons in their outermost shell.

2.- Hellium

    Neon

    Argon

    Krypton

    Xenon

    Radon

3.- Magnesium

    Calcium

4.- Magnesium

5.- VII A Halogen

6.- III A, IVA, VA, VIA

7.- Nitrogen

8.-                              Categories of the periodic table

Metals                                 Metalloids                            Non-metals

Group IA and IIA                Groups IIIA to VIA                Groups IVA to VIIA

Groups B's

9.- Left side

10.- right side

11.- non metal / left

You might be interested in
Most reactive<br> O Be<br> O Mg<br> O Ba<br> o Ca<br> Which one is the most reactive
katen-ka-za [31]

Answer:

Mg

Explanation:

I think the answer is Mg

7 0
3 years ago
An unknown liquid is composed of 34.31% c, 5.28% h, and 60.41% i. The molecular weight is 210.06 amu. What is the molecular form
ozzi

In an unknown liquid, the percentage composition with respect to carbon, hydrogen and iodine is 34.31%, 5.28% and 60.41% respectively.

Let the mass of liquid be 100 g thus, mass of carbon, hydrogen and oxygen will be 34.31 g, 5.28 g and 60.41 g respectively.

To calculate molecular formula of compound, convert mass into number of moles as follows:

n=\frac{m}{M}

Molar mass of carbon, hydrogen and iodine is 12 g/mol, 1 g/mol and 126.90 g/mol.

Taking the ratio:

C:H:I=n_{C}:n_{H}:n_{I}

Putting the values,

C:H:I=\frac{34.31 g}{12 g/mol}:\frac{5.28 g}{1 g/mol}:\frac{60.41 g}{126.90 g/mol}=6:11:1

Thus, molecular formula of compound will be C_{6}H_{11}I.

4 0
3 years ago
Какая масса хлора и какое количество вещества необходимо для реакции с 12г магния при получении хлорида магния?
Naddika [18.5K]
Mg + Cl₂ = MgCl₂M(Mg) = 24г/моль  m 1 моль Mg = 24 г.По условию задачи дано 12г. Mg  Количество вещества n(Mg) =12÷24=0,5 мольРассуждаем: по уравнению реакции  с 1 моль магния реагирует 1 моль хлора, следовательно с 0,5 моль будет реагировать 0,5 моль хлора.1 моль хлора при н.у. занимает объем 22,4л. , тогда 0,5 моль хлора займет:0,5х22,4л.= 11,2л. Ответ: Для взаимодействии 12 г.  магния потребуется 11,2 л. хлора.
7 0
3 years ago
Please help!
Len [333]
It will slowly rotten and turn brown
7 0
3 years ago
Baking soda (nahco3) is an active ingredient in some antacids. determine the percent composition of oxygen in baking soda.
telo118 [61]
Assuming the question is asking for percent composition by mass,

The molar mass of sodium bicarbonate is:

22.990 + 1.008 + 12.011 + 3*15.999 = 84.006 g/mol

The molar mass of 3 oxygen atoms is:

3*15.999 = 47.997 g/mol

The percentage composition by mass is:

47.997/84.006 * 100% = 57.1% (3 s.f.)
8 0
3 years ago
Other questions:
  • Gaseous methylamine, CH3NH2, can be classified as __________.(a) a Lewis base only(b) Arrhenius and Brønsted-Lowry bases(c) a Br
    10·1 answer
  • Calcium hydroxide has the formula Ca(OH)2.
    9·1 answer
  • A bowling ball has a mass of 10.0kg. If a net force of 35N is applied to the ball, what’s the acceleration?
    7·1 answer
  • From your solubility curve determine the solubility of ammonium chloride in g/100 mL of H2O at 60 Degrees Celsius.
    9·1 answer
  • To balance a chemical equation it may be necessary to adjust the
    10·1 answer
  • Will mark as Brainliest.
    12·1 answer
  • Which of the following liquids has the greatest viscocity? A. hexane (C6H14) B. CH3OCH2CH3 C. CH3CH2OCH2CH3 D. CH3CH2OH E. HOCH2
    13·2 answers
  • How many hydrogen atoms are in water, H2O?<br><br> A) 1<br> B) 2<br> C) 3<br> D) 0
    14·2 answers
  • One part of the cell theory states that all living things are made up of one or more cells. Scientists had to find ways to test
    13·1 answer
  • Which type of isomer differs by having different connectivity between the atoms?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!