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
Anuta_ua [19.1K]
3 years ago
9

1. The elements in the modern Periodic Table are arranged according to their

Chemistry
1 answer:
Usimov [2.4K]3 years ago
4 0

Answer:

A). Atomic number

Explanation:

THIS IS EASY

You might be interested in
How many kilograms are in 125 pounds
zhuklara [117]

Answer:

125 pounds = 56.6990463 kilograms

Explanation:

3 0
3 years ago
Which of the following is the correct word equation for the reaction described below?
pshichka [43]
A) sulfuric acid + sodium hydroxide → sodium sulfate + water
4 0
3 years ago
Read 2 more answers
In the formation of carbon dioxide (CO2) from carbon monoxide (CO) and oxygen (O2), how many moles of carbon monoxide are needed
Delicious77 [7]

Answer:

14 moles of CO are needed in the reaction, to react with 7 moles of O₂

Explanation:

We need to determine the reaction to start:

O₂ (g) + 2CO (g) → 2CO₂ (g)

Now, we state the ratio of reactants:

1 mol of oxygen needs 2 moles of CO, to react and they both, produce 2 moles of CO₂. Therefore the ratio is 1:2

We can make a rule of three to reach the answer:

1 mol of O₂ needs 2 moles of CO to react

Therefore, 7 moles of O₂ must need (7 .2) /1 = 14 moles

7 0
4 years ago
Need help solving these questions
Anton [14]

Answer:

1) 100

2) 22

3) 39

4) 6

5) 2b + 6

6) 8

7) 4n + 20

Explanation:

If B is the midpoint of AC and C is the midpoint of BD, means that all 3 parts are equal. AB = BC = CD

1) If AB = 50 then AC = AB + BC = 50 +50 = 100

2)if BD = 44 then is CD = 44 - BC ⇔ CD = 44 - 22 = 22

3) if AC = 26 and AC = AB + BC   then each part is 13  

AD = AC + CD = 26 +13 = 39

4)if CD = 6 then  AB = 6 Because all single parts are equal

5) if AC = 4b + 12 then is AB the half of it = 2b +6

6) if AD = 24 then AB = 1/3 of it = 8

7)if BC is 2n + 10 then is AC = 2x BC = 4n + 20

8 0
3 years ago
The attraction between two oppositely charged atoms or group of atoms is which type of bond
Ber [7]

Answer:

ionic bond

An ionic bond is a type of chemical bond formed through an electrostatic attraction between two oppositely charged ions. Ionic bonds are formed between a cation, which is usually a metal, and an anion, which is usually a nonmetal. A covalent bond involves a pair of electrons being shared between atoms.

8 0
3 years ago
Other questions:
  • What temperate is required to boil noodles?
    13·2 answers
  • What is meant by the ground state of an atom? What is meant by the ground state of an atom? All of the quantum numbers have thei
    12·1 answer
  • Which change occurs when an atom in excited state returns to ground state? 1 energy is emitted 2energy is absorbed 3 the number
    12·2 answers
  • Consider the reaction below. 2H2O 2H2 + O2 How many moles of hydrogen are produced when 6.28 mol of oxygen form?
    13·2 answers
  • An unknown substance cannot be separated by physical processes, but can be separated by chemical decomposition. the substance mu
    6·1 answer
  • Water is formed when two hydrogen atoms chemically combine with an oxygen atom. Which term best describes water?
    8·1 answer
  • 3.<br> Describe how photosynthesis is<br> related to respiration.
    9·1 answer
  • Can someone plz help me? :( giving brainliest
    11·1 answer
  • Which of the following statements is correct?
    5·1 answer
  • In which section(s)/point(s) is the car accelerating?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!