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
Inga [223]
3 years ago
11

Along each row of the periodic table,

Chemistry
1 answer:
Arte-miy333 [17]3 years ago
7 0

Along each row of the periodic table, the atomic mass increases from left to right.

Explanation:

The elements in the periodic table are arranged based on rows and periods by increasing atomic number.

The periodic table has rows from left to right and columns from up and down. These rows are called periods and columns are called groups.

The electron organization in an atom explains about the shape and the elements in the same column have similar chemistry. The elements in each column have the same valence shell electron configuration and they have similar properties.

You might be interested in
Which of the following might be an indicator of global warming?
kolbaska11 [484]

Answer: The correct answer is A. average increase in the temperatures near Earth's surface

Explanation: The reason this is correct is that global warming is it getting hotter, logically the temperatures near Earth's surface will be getting hotter as well. Hope this helps

6 0
3 years ago
What is the enthalpy of formation (?H?f) of NaHCO3(s) from its constituent elements.
vova2212 [387]

Answer:

Enthalpy of formation = -947.68KJ/mol

Explanation:

Enthalpy of formation is the heat change when one mole of a substance is formed from its element in its standard states and in standard conditions of temperature and pressure. it may be positive or negative, if positive, it is an endothermic reaction where the heat content of the product is greater than that of the reactants, and if negative, it is exothermic reaction - where the heat content of the reactants is greater than the products. the enthalpy of formation is measured in KiloJoule/Moles (KJ/Mole).

From the value of the enthalpy of formation of NaHCO3, it shows that the reaction is exothermic, that is the formation of NaHCO3 from its constituents elements. As such, the heat content of the reactants is greater than the products.

The step by step explanation is shown in the attachment.

7 0
3 years ago
Read 2 more answers
Fe(NO3)2 not sure how to get the oxidation numbers of all elements
Cloud [144]
<span>Fe(NO3)2
The NO3 part is a poly-atomic ion with total charge -1.
This is because Fe has a +2 charge and two NO3's with a -1 charge will balance out to 0.
 Most often we just make the assumption that Oxygen has a -2 oxidation number because it is very electro-negative.
So to find N, we just need an oxidation number that balances out with 3(-2) to get -1 (the total charge of the ion)</span>
3 0
3 years ago
What does a steam engine do?
Mumz [18]
B steam causes wheels to turn is correct
4 0
3 years ago
Calculate the molar mass of N2O. Report your answer to 2 decimal places.
kvv77 [185]

Answer:

013 g/mol is the molar mass of N2O.

5 0
2 years ago
Other questions:
  • What volume does 4.53 moles of hydrogen at 1.78 atm and 301 K occupy
    12·2 answers
  • From left to right, the three regions of a phase diagram represent the _____ of a substance.
    6·2 answers
  • Which describes an atom that has fewer neutrons than protons and more electrons than protons?
    10·2 answers
  • Which of the following is a chemical property?
    12·2 answers
  • The iupac name for a carboxylic acid with two carbons in a straight chain would be _____.
    12·1 answer
  • How many moles of Au2S3 is required to form 56 grams of H2S at STP?
    8·1 answer
  • MARK ALL of the objects that can be found in our Solar System
    9·2 answers
  • NEED HELP NOW!!!!!!!
    14·2 answers
  • What mass of hcl is consumed by the reaction of 5.0 moles of mg??
    13·1 answer
  • What happens to the freezing temperature of a solvent when a
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!