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
larisa [96]
3 years ago
15

(ii)

Chemistry
2 answers:
Katyanochek1 [597]3 years ago
7 0

Answer:

Explanation: Potassium metal is soft and white silvery lustre. it has low melting point and good conductor of heat and electricity. Copper is malleable and ductile and an extremely good conductor of heat and electricity.

Helga [31]3 years ago
4 0

Answer:

ExplanationWhat are the properties of potassium?

Image result for give one other difference between the properties of copper and potassium

Potassium metal is soft and white with a silvery lustre, has a low melting point, and is a good conductor of heat and electricity. Potassium imparts a lavender colour to a flame, and its vapour is green. It is the seventh most abundant element in Earth's crust, constituting 2.6 percent of its mass.:

You might be interested in
Given the balanced equation representing a reaction:
notsponge [240]

Answer:

it is a base because they accept H+ ions

Explanation:

4 0
4 years ago
The melting point of H₂O(s) is 0 °C. Would you expect the melting point of H₂S(s) to be 85 °C, 0 °C or -85 °C.? Justify your cho
dimulka [17.4K]

Answer:

-85 °C

Explanation:

O and S are in the same group( Group 16). Since S is below O it's atomic mass is higher than O. So molar mass of H2S is higher than H2O. The strength of Vanderwaal Interactions ( London dispersion forces) increases when the molar mass increases. However, only H2O can form H bonds with each other. This is because electronegativity of O is higher than S and therefore H in H2O has a higher partial positive charge than H of H2S.

H bond dominate among these 2 types of forces so the strength of attractions between molecules is higher in H2O than H2S. Therefore more energy should be supplied for H2O to break inter

molecular forces and convert from solid to liquid state than H2S. So mpt of H2O must be higher than that of H2S.

5 0
3 years ago
How many atoms are in 294 g of copper?
mote1985 [20]

Answer

2.1 x 10 ^23

fdxkjns9fhnuvypdsssssssssz89999qewv

7 0
3 years ago
How to keep pipes from freezing during power outage?.
Maurinko [17]

Answer: <em>Running water, even at a trickle, helps prevent pipes from freezing. If you decide to use fuel-burning equipment, such as a kerosene heater, ensure it is vented to outside and kept clear of any vents. Keep garage doors closed if there are water supply lines in the garage.</em>

Explanation:

8 0
2 years ago
Read 2 more answers
How many moles are present in 100 grams of potassium?
spayn [35]

Answer:

39.0983.

Explanation:

4 0
3 years ago
Other questions:
  • Which ions are spectator ions in the formation of a precipitate of agcl via combining aqueous solutions of cocl2 and agno3?
    15·1 answer
  • What is the formula for calcium chloride?<br><br><br> Ca2Cl<br><br> CaCl<br><br> CaCl2<br><br> CaCl3
    14·2 answers
  • How would you calculate an object's mechanical energy?
    5·1 answer
  • The main buffering agents in human blood are h2co3 and hco3. Explain how this buffering system will be able to maintain blood pH
    9·1 answer
  • Which electrons participate in chemical bonding
    13·2 answers
  • An astronaut leaves Earth's surface and begins orbiting Earth. How will his departure from Earth affect his mass and weight?
    10·2 answers
  • What is the number of Co2 in a 220 gram
    10·1 answer
  • The diagram shows a model of an atom. Who first proposed this model?
    6·1 answer
  • A steel calorimeter has a volume of 75.0 mL and is charged with Oxygen gas to a
    10·1 answer
  • Where is the Oort cloud located
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!