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
Marysya12 [62]
3 years ago
12

List 3 ways the periodic table is useful Help!

Chemistry
2 answers:
SashulF [63]3 years ago
6 0

The periodic table arranges the elements into families and periods (vertical and horizontal rows). The elements in each family have similar properties. As you go across a row, the properties vary gradually from one element to the next. The table tells you what elements may have similar chemical and physical properties.The periodic table describes the atomic structure of all known elements. For instance, by looking at the periodic table, you can find out the atomic mass and the number of electrons the element has. Each element has its own separate set of such data. No two elements are the same.This is perhaps the most useful feature of the Periodic Table. It is an excellent reference tool. In one place, you can find many properties of an element.

baherus [9]3 years ago
4 0
It is helpful because number one it tells u all the formulas number two u can find the atomic number  number 3 u can find out if it is a metal,nonmetal,or iron
You might be interested in
The compound sodium carbonate is a strong electrolyte. Write the reaction when solid sodium carbonate is put into water:
Ludmilka [50]

The compound sodium carbonate is a strong electrolyte because it completely dissociates when placed in water into its component ions. The equation of the reaction can be expressed as:

Na_2CO_3_{(s)} ---> 2 Na^+_{(aq)} + CO_3^{(2+)}_{(aq)}

The dissociation leads to the formation of sodium and carbonate ions with the latter held together by its internal covalent bond.

This is unlike weak electrolytes that do not dissociate completely in water or aqueous solutions. Only a small fraction of the solute exists as ions in the solution.

More on strong and weak electrolytes can be found here: brainly.com/question/3410548

7 0
3 years ago
A sealed container holding 0.0255 L of an ideal gas at 0.979 atm and 67 ∘ C is placed into a refrigerator and cooled to 41 ∘ C w
Aliun [14]

Answer:

0.904 atm

Explanation:

Using Gay Lusaac's law where there is no change in Volume. The pressure changes directly proportional to absolute T°

P₁/T₁ = P₂/T₂

P₁T₂/T₁

P₂ = \frac{0.979 atm * 314k }{340k}

P₂ = 0.904 atm

5 0
2 years ago
1.505 times 10^23 Na atoms
Svet_ta [14]

Explanation:

Given:

Number of atoms = 1.505 x 10²³

Let us solve for the number of moles and mass of this atom of sodium.

A mole of a substance is the amount of that substance that contains the avogadro's number of particles.

     1 mole of Na = 6.02 x 10²³ atoms

Number of moles of Na  = \frac{1.505 x 10^{23} }{6.02 x 10^{23} }   = 0.25moles

Mass of Na = number of moles x molar mass

Molar mass of Na = 23g/mole

 Mass of Na = 0.25 x 23 = 5.75g

learn more:

Number of moles brainly.com/question/1841136

#learnwithBrainly

4 0
2 years ago
QUESTION 3
nikitadnepr [17]

Explanation:

Other important behaviors of gases explained by the Kinetic Molecular Theory are effusion and diffusion. Effusion is the rate at which a gas escapes through a small hole in a container. Diffusion is the rate at which a gas travels across a room. Both of these phenomena are illustrated by the following figure.

7 0
3 years ago
The solution starts with increased
marta [7]

Answer:

Increasing the Molarity by Volume. Determine the number of moles of solute in a given solution by dividing the number of grams of solute by its molecular mass.

Explanation:

8 0
2 years ago
Other questions:
  • What happens when an electron falls to a lower energy level?
    12·1 answer
  • A solution is prepared by dissolving 27.7 g of cacl2 in 375 g of water. the density of the resulting solution is 1.05 g/ml. the
    9·2 answers
  • WILL MARK BRAINLIEST!!
    5·1 answer
  • If a person looking at a poster sees green instead of yellow and doesn't see red at all, this person most likely has color blind
    5·2 answers
  • A chemist adds of a sodium carbonate solution to a reaction flask. Calculate the mass in grams of sodium carbonate the chemist h
    14·1 answer
  • fluorine is a toxic, reactive gas. which representation (structural formula, electron dot structure, or three-dimensional model)
    13·1 answer
  • How much energy is absorbed when 15g of water at 100C boiled away?
    13·1 answer
  • What is E=mc2? please be specific.
    11·1 answer
  • Write a scientific argument that addresses the question: Why is Jackie an elite distance runner when no one else
    5·1 answer
  • Pleaseeeeeeeee
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!