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
marishachu [46]
3 years ago
14

True or false: The elements in a group of the periodic table have similar characteristics

Chemistry
1 answer:
Helga [31]3 years ago
5 0
False each one has its own unique in its own way
You might be interested in
Look at the table. Which of these three substances is not an alloy?
Gemiola [76]

Answer:

B is the correct option.

5 0
2 years ago
Read 2 more answers
A liquid dissolved in a gas results in a solution that is _____.
SVETLANKA909090 [29]

The correct answer is C


6 0
3 years ago
Read 2 more answers
Can someone help me
Molodets [167]

Answer:

The longer it takes to orbit the sun.

Explanation:

6 0
3 years ago
Read 2 more answers
If 38.5 grams of potassium react with excess oxygen gas, how many grams of potassium oxide can be produced? 4K + O2 yields 2K2O
Lera25 [3.4K]

Answer:

46.40 g.

Explanation:

  • It is a stichiometric problem.
  • The balanced equation of the reaction: 4K + O₂ → 2K₂O.
  • It is clear that 4.0 moles of K reacts with 1.0 mole of oxygen produces 2.0 moles of K₂O.
  • We should convert the mass of K (38.5 g) into moles using the relation:

<em>n = mass / molar mass,</em>

n = (38.5 g) / (39.098 g/mol) = 0.985 mole.

<em>Using cross multiplication:</em>

4.0 moles of K produces → 2.0 moles of K₂O, from the stichiometry.

0.985 mole of K produces → ??? moles of K₂O.

∴ The number of moles of K₂O produced = (0.985 mole) (2.0 mole) / (4.0 mole) = 0.4925 mole ≅ 0.5 mole.

  • Now, we can get the mass of K₂O:

∴ mass = n x molar mass = (0.5 mole) (94.2 g/mol) = 46.40 g.

6 0
3 years ago
The volume of a gas-filled balloon is 30.0 L at 313 K and 1520 mm Hg pressure. What would the volume be at standard temperature
pashok25 [27]
313 k
step-by-step-explanation
4 0
2 years ago
Other questions:
  • Beryllium (Be): 1sC2sD, what's C and D?
    12·2 answers
  • Given the reaction:
    9·2 answers
  • Suppose the amu had been defined as 110th of the mass of a phosphorus atom. What would be the relative mass of carbon-12?
    7·1 answer
  • Which is most likely why many scientists reject the cold fusion theory?
    13·1 answer
  • More than ½ of the world's forests have been lost to deforestation. True False
    9·2 answers
  • A waterbed filled with water has the dimensions 8.5ft by 7.5ft by 9.5inches. Taking the density of water to be 1.00 g/cubic cent
    5·1 answer
  • What is the pOH of a 0.013 M Ca(OH)2 solution?
    14·1 answer
  • Select the correct text in the passage.
    14·2 answers
  • An element with the electron configuration: [noble gas] ns2 (n - 1)d10 np3 has how many_____________ valence electrons.
    12·1 answer
  • What are common materials​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!