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
swat32
3 years ago
5

How are elements arranged in a periodic table

Chemistry
2 answers:
juin [17]3 years ago
8 0
Elements are arranged in increasing atomic/proton number
andre [41]3 years ago
6 0
Periodic table is arranged according to atomic size and other properties.
You might be interested in
Zinc metal reacts with copper sulfate through the following
morpeh [17]

Answer:

26.9

Explanation:

5 0
2 years ago
In case of accidental contact with chemicals, how long should the eyes be flushed at the eyewash station
FromTheMoon [43]

Answer:

See the answer below

Explanation:

<em>The duration of flushing the eyes at the eyewash station in case of accidental contact with chemicals depends of the nature of the chemical.</em>

If the chemical is known to be a <u>non-irritant or mild-irritant</u> one, a <u>5-minute </u>washing time is recommended as the first aid. before seeking the help of a physician,

For <u>moderate to severe irritant</u> chemicals, an immediate <u>15-20 minutes</u> washing period is recommended before seeking further medical help.

For <u>corrosive and strong alkalis</u> chemicals, <u>30 and 60 minutes</u> washing are recommended respectively before seeking the attention of a physician.

However, if the nature of the chemical is unknown,<u> a minimum of 20-minutes washing is generally recommended</u> as first aid before seeking immediate medical help.

6 0
2 years ago
Which properties do not change the composition of a substance?
Nina [5.8K]

Answer:

Physical Properties

Explanation:

PHYSICAL PROPERTY

7 0
3 years ago
Look at the picture below. Name the isotope.
Aleks [24]

Answer:

carbon-13

Explanation:

6 0
3 years ago
Write the molecular formula of ferric oxide and calcium hydroxide by criss-cross method ​
irina [24]
<h3>Ferric Oxide:-</h3>

\setlength{\unitlength}{1cm}\begin{picture}(0,0)\thicklines\put(0,3){\bf Fe}\put(0,0){\bf -3}\put(4,3){\sf O}\put(4,0){\bf -2}\put(0.2,2.9){\vector(4,-3){3.5}}\put(3.8,2.9){\vector(-4,-3){3.5}}\end{picture}

\\ \sf\longmapsto Fe_2O_3

<h3><u>C</u><u>a</u><u>l</u><u>c</u><u>i</u><u>u</u><u>m</u><u> </u><u>H</u><u>y</u><u>d</u><u>r</u><u>o</u><u>x</u><u>i</u><u>d</u><u>e</u><u>:</u><u>-</u></h3>

\setlength{\unitlength}{1cm}\begin{picture}(0,0)\thicklines\put(0,3){\bf Ca}\put(0,0){\bf 2}\put(4,3){\sf OH}\put(4,0){\bf -1}\put(0.2,2.9){\vector(4,-3){3.5}}\put(3.8,2.9){\vector(-4,-3){3.5}}\end{picture}

\\ \sf\longmapsto Ca(OH)_2

4 0
3 years ago
Other questions:
  • What is the wavelength of radiation that has a frequency of 7.2×10^11 s−1 ?
    8·1 answer
  • Unlike the earth, the sun _____.
    6·2 answers
  • If the molar heat of fusion of water is 6.01
    7·1 answer
  • What is the nuclear charge of a berrylium atom?
    6·1 answer
  • Give two examples of good conductors of electricity
    15·1 answer
  • What is the Lewis dot structure for magnesium fluoride?
    14·1 answer
  • Determine the number of atoms present in 4.5 mols of Calcium
    6·1 answer
  • How do the circulatory system and respiratory system interact and work together?
    12·2 answers
  • Phenolphthalein is used as a visual indicator in a strong acid-strong base titration because
    14·1 answer
  • Calculate the pH when 60.0 mL of 0.200 M HBr is mixed with 30.0 mL of 0.400 M CH₃NH₂ (Kb = 4.4 × 10⁻⁴).
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!