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
snow_lady [41]
3 years ago
13

Which sequence of group 18 elements demonstrates a gradual decrease in forces of attraction

Chemistry
1 answer:
DanielleElmas [232]3 years ago
8 0

Answer: Xe, Kr, Ar, Ne

Explanation:

Hope i helped please mark brainliest!

You might be interested in
Determine how many atoms of pure silver will be created when 19.83 x 1023 atoms of copper are used in the following reaction:
Lubov Fominskaja [6]

Answer:

\boxed{3.966 \times 10^{24}\text{ atoms of Ag}}

Explanation:

(a) Balanced equation

Cu + 2AgNO₃ ⟶ Cu(NO₃)₂+ 2Ag

(b) Calculation

You want to convert atoms of Cu to atoms of Ag.

The atomic ratio is ratio is 2 atoms Ag:1 atom Cu

\text{Atoms of Ag} = 19.83 \times 10^{23}\text{atoms Cu} \times \dfrac{\text{2 atoms Ag}}{\text{1 atom Cu}}\\\\= 3.966 \times 10^{24}\text{ atoms of Ag}\\\\\text{The reaction will produce }\boxed{\mathbf{3.966 \times 10^{24}}\textbf{ atoms of Ag}}

4 0
3 years ago
Read 2 more answers
Vocabulary crossword puzzle properties of minerals
goblinko [34]

Answer: what were

Explanation:

4 0
2 years ago
Read 2 more answers
Why weren’t scientists initially concerned that the ocean absorbs excess carbon dioxide?
nasty-shy [4]
They only discovered
5 0
2 years ago
How many H atoms in 12H2O?
Ilya [14]

Answer:

24 atoms of H  or 1.4 x 10²⁵ hydrogen atoms

Explanation:

simple method

1 H₂O has  atoms of hydrogen and 1 atom of oxygen

while 12H₂O will have 24 atoms of hydrogen and 12 atom of oxygen

by Avagadros number

molar mass of water H₂0=18.01528 g/mol

1 mole of H₂0 have 2 moles of Hydrogen  

one mole of water= 6.02⋅10²³water molecules =1.2 x 10²⁴hydrogen atoms

12 mole of H₂O   =    1.2 x 10²⁴ x 12=  1.4 x 10²⁵ hydrogen atoms  

<u />

1.4 x 10²⁵ hydrogen atoms   in 12 moles of H₂O

<u />

3 0
3 years ago
Is fire a source of chemical energy
Leno4ka [110]

Answer:

Any matter considered to be a fuel contains chemical energy

Energy has to be provided to initiate the reaction.

So yes. It is

4 0
3 years ago
Other questions:
  • Propose a reasonable synthesis to get benzylamine from toluene
    11·1 answer
  • What type of energy is present in the batteries of a flashlight? Mechanical energy Electrical energy Chemical energy Radiant ene
    7·2 answers
  • Chromium (Cr) can combine with chlorine (Cl2) to form chromium chloride (CrCl3). Which equation is a correct representation of t
    13·2 answers
  • If a reaction has an equilibrium constant slightly greater than 1, what type of reaction is it?
    15·2 answers
  • A chemist wants to use an element with a large electronegativity for an experiment. Based on trends in the periodic table, which
    13·1 answer
  • What is the mass of an object that creates 33,750J of energy by traveling at<br> 30m/s?
    14·2 answers
  • Calculate the grams of solute in each of the following solution: 278 mL of 0.038 M Fe2(SO4)3
    6·1 answer
  • At what temp does h2o melt
    12·2 answers
  • Many scientists think that this single event caused the extinction of most the dinosaurs which led to the rise of mammals which
    14·1 answer
  • What is a polyprotic buffer?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!