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vivado [14]
3 years ago
8

How are elements arranged in the Periodic Table?

Chemistry
2 answers:
ladessa [460]3 years ago
5 0
A. By their properties.
lara31 [8.8K]3 years ago
5 0
A, I think. Sorry if I'm incorrect.
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Anyone know this <br> Please help me
Olin [163]

Answer:

sorry I don't know

Explanation:

have a great time with your family and friends

6 0
3 years ago
What is the empirical formula for a substance that is composed of 40.66% carbon, 8.53% Hydrogen,23.72% Nitrogen, and 27.09% Oxyg
prohojiy [21]

Answer:

THE EMPIRICAL FORMULA OF THE SUBSTANCE IS C2H5NO

Explanation:

The steps involved in calculating the empirical formula of this substance in shown in the table below:

Element                            Carbon           Hydrogen          Nitrogen         Oxygen

1. % Composition              40.66              8.53                 23.72                27.09

2. Mole ratio =

%mass/ atomic mass       40.66/12         8.53/1          23.72/14            27.09/16

                                       =  3.3883            8.53              1,6943             1.6931

3. Divide by smallest

value (0.6931)          3.3883/1.6931    8.53/1.6931    1.6943/1.6931   1.6931/1.6931

                               =      2.001                  5.038           1.0007                      1

4. Whole number ratio        2                       5                   1                               1

The empirical formula = C2H5NO

7 0
3 years ago
The ozone "hole" over Antarctica formed as the result of a series of chemical reactions. The loss occurs in part through three c
mixer [17]

Answer:

A)

Cl + O3 --> ClO + O2

2ClO --> ClOOCl

ClOOCl --> 2 Cl + O2

B)

Cl2 + 4O3 -> 2 ClO + 5O2

Explanation:

Step 1: Chlorine atoms react with ozone (O3) to form chlorine monoxide and molecular oxygen

Cl + O3 --> ClO + O2

Step 2: Chlorine monoxide molecules combine to form ClOOCl gas

2ClO --> ClOOCl

Step 3: ClOOCl absorbs sunlight and breaks into chlorine atoms and molecular oxygen

ClOOCl --> 2 Cl + O2

B) Overall Balanced equation

Cl2 + 4O3 -> 2 ClO + 5O2

7 0
2 years ago
Why is sound able to travel faster through a solid than a gas?
noname [10]

Answer:

Sound travels more quickly through solids than through liquids and gases because the molecules of a solid are closer together and, therefore, can transmit the vibrations (energy) faster.

3 0
3 years ago
Read 2 more answers
A loaf of bread has a mass of 300 grams and the volume of the loaf of bread is 10 cm by 30 cm and 10 cm what is the density of t
Free_Kalibri [48]

Answer:

0.1

Explanation:

300/(30*10*10)=0.1

6 0
2 years ago
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