What is the periodic table helpful for?

1 answer:

4 0

The table tells you what elements may have similar chemical and physical properties. Also, the periodic table describes the atomic structure of all known elements like the atomic mass of an element or how many electrons it has.

You might be interested in

ZnCI2 + H2SO4 = ZnSO4 + HCI

Alex Ar [27]

Answer:

it makes no sense

Explanation:

8 0

3 years ago

Read 2 more answers

The smallest part of a molecule is called

yarga [219]

Answer:

D atom

Explanation:

The smallest particle of a substance that retains the chemical and physical properties of the substance and is composed of two or more atoms

8 0

3 years ago

Read 2 more answers

Order the items below from largest to smallest size.

Ymorist [56]

Answer:

1- gram of oxygen, 2- 3.01x1023 atoms of oxygen, 3- 1 molecule of oxygen, 4- 1mole of oxygen, 5- 1atom of oxygen.

7 0

3 years ago

What metal react with acids to form h2 gas?

iogann1982 [59]

<span>metal + acid → salt + hydrogen.zinc + sulphuric acid → zinc sulphate + hydrogen.<span>magnesium + hydrochloric acid → magnesium chloride + hydrogen.</span></span>

4 0

3 years ago

Which of the following is a correct lewis structure for sulfur dioxide, so2?

pshichka [43]

The correct Lewis structure of SO2 is the Lewis structure that shows all the 12 valence electrons in the molecule.

A Lewis structure shows the number of valence electrons on the valence shell of all the atoms in a compound. The electrons are shown as dots around the symbol of each element or a dash to indicate shared electrons in a covalent bond.

Looking at the Lewis structure of SO2 attached to this answer, we can see the twelve valence electrons in the molecule and how they are distributed around each atom as shown.

Learn more: brainly.com/question/20514601

3 0

2 years ago