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
Julli [10]
3 years ago
9

What is perodic table list all the elements up to 30 with their valencies​

Chemistry
1 answer:
insens350 [35]3 years ago
8 0

Answer:

a table of the chemical elements arranged in order of atomic number, usually in rows, so that elements with similar atomic structure (and hence similar chemical properties) appear in vertical columns.

You might be interested in
An unknown element, X, reacts with sodium to form the compound Na2X. In other compounds, this element also can accommodate up to
Andreas93 [3]

Answer:

B. O

Explanation:

7 0
3 years ago
Explain where the water that collects on the outside of a cold drink on a hot day comes from.
krok68 [10]

Answer:

It is because water molecules in the air condensed on to the container of the drink.

Explanation:

The way this works is the water molecules outside are hot and in the gas state, so when they come into contact with the cold side of the container they lose energy due to heat transfer between the molecules and the container, becoming a liquid on the side of the drink.

4 0
3 years ago
How many nonmetal elements are on the periodic table of elements
vladimir1956 [14]
There are 17 nonmetals on the periodic table of elements.
3 0
3 years ago
Read 2 more answers
Find the number of moles of water that can be formed if you have 134 mol of hydrogen gas and 62 mol of oxygen gas
CaHeK987 [17]
164. You have excess hydrogen- you need double the number of moles hydrogen as oxygen because water has two hydrogens and only one oxygen while both hydrogen gas and oxygen gas are diatomic. 

<span>Because oxygen is diatomic, you spit it in half and basically double the number of moles, tack on your excess hydrogen, and you have 164 moles of water. </span>

<span>Edit: Lets look at it in one more way, taking into account what a mole is: </span>

<span>A mole is Avogadro's Constant number of particles- or about 6.02x10^23. So, we can multiply the number of moles you have to figure out how many particles of each we have. You can skip this step, because we will convert back to moles, but its illustrative of the concept. </span>

<span>6.02x10^23 x 174 moles H2 = 1.05 x 10^26 particles H2 </span>
<span>6.02x10^23 x 82 moles O2 = 4.94 x 10^25 particles O2 </span>

<span>I'm going to take one more step here- take them out of diatomic form. This will double the number of particles of each. </span>

<span>2.10 x 10^26 particles H+ </span>
<span>9.88 x 10^25 particles O(2-) </span>

<span>Now, we know we need a 2:1 oxygen atom to hydrogen atom ration, so we devide and see oxygen is our limiting reagent. So, we have 9.88 x 10^25 single oxygen atoms, all of which will become water the hydr</span>
3 0
3 years ago
Cells are able to work more efficiently through _____, which forms tissues, organs, and systems. production organization parts s
notka56 [123]
<span>Cells are able to work more efficiently through: s</span>pecialization. 
7 0
3 years ago
Other questions:
  • You are given a solution of sugar and sand and water your task is to separate sugar from sand which of the following experimenta
    12·1 answer
  • Why does hydrochloric acid have a higher boiling point than diatomic fluorine?
    9·1 answer
  • The strongest intermolecular interactions between hydrogen fluoride (HF) molecules arise from A) dipole dipole forces B) hydroge
    7·2 answers
  • think about the lab procedure you just read. Label each factor below V for variable or C for constant.
    7·2 answers
  • PLEASE HELP!!
    15·1 answer
  • II. Enumerate the following.
    10·1 answer
  • All rocks can form into other types of rocks
    5·1 answer
  • What orbital do the transition metals finish their electron configuration in
    10·1 answer
  • +30 points
    14·1 answer
  • Calculate the mole fraction of the total ions in an aqueous solution prepared by dissolving 0.400 moles of CaI2 in 850.0 g of wa
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!