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
seropon [69]
3 years ago
15

Chalk is an ionic compound. Which is a property of all ionic compounds that makes chalk particularly useful for writing on a cha

lkboard? A a high melting point B hardness and brittleness C inability to dissolve in water D a multicolored appearance
Mathematics
2 answers:
Delicious77 [7]3 years ago
6 0

The correct answer is B. Hardness and brittleness

Explanation:

The ions in materials such as chalk and other ionic compounds are bonded by electrostatic forces. These features give ionic compound unique characteristics. This includes the fact these materials are usually hard, which means they do not deform easily and the fact these are brittle, which means they break easily.

These properties can be observed in chalk because the chalk itself keeps its shape or does not deform (hardness) but it breaks easily under pressure (brittleness), indeed due to this last property it is possible to write using chalk and due to the first property it is possible the chalk is a durable material.

nalin [4]3 years ago
5 0

Answer:

It’s B

Step-by-step explanation:

You might be interested in
Can someone help me with this ASAP. Thank You!
masha68 [24]
4x°=75-x° this might be wrong but I’m sure
8 0
3 years ago
Algebraically show that each of the given combinations are equivalent to the given functions.
BlackZzzverrR [31]

Answer:

Yes they ate Equivalent

Step-by-step explanation:

Given the expression

h(x) = - 3x – 1;j(x) = – 7x + 11 ; k(x) = 21.22 – 262 – 11

H(x)•j(x) = (-3x-1)(-7x+11)

H(x)•j(x) = (-3x)(-7x)-3x(11)-1(-7x)(-1)(11)

H(x)•j(x) = 21x²-33x+7x-11

H(x)•j(x) = 21x²-26x-11

This shows that H(x)•j(x) = k(x)

6 0
2 years ago
Solve for y 10.3=0.6y
gavmur [86]
10.3 = 0.6y...divide both sides by 0.6
10.3 / 0.6 = y
17.17 = y <=
8 0
3 years ago
Read 2 more answers
Can someone please please help me :(
Readme [11.4K]

Answer:i think its 15 because if you take the km numbers and subtract them

Step-by-step explanation:

7 0
3 years ago
Find the value of x. Write your answer as a simplified radical if necessary.
Andreas93 [3]

Answer:

x=5

Step-by-step explanation:

The right angle opposite is the hypotenuse

The 30° is the opposite

SohCahToa

Soh = Sin because you got Opposite and Hypotenuse (because you're trying to find the side, you'd do the opposite of dividing, which is times)

10×sin(30)=5

3 0
3 years ago
Other questions:
  • To kick off the summer, Colton is planning a "School's Out!" party for all his friends. He and his mom pick up a giant sub and a
    12·1 answer
  • Which of the following terms best describes 1.47
    8·2 answers
  • 2y = 1/4<br><br> find the value of y
    15·2 answers
  • I need help on this problem please help
    13·1 answer
  • 2. Lance rode his bike 1/4 of a mile. Catherine rode her bike 1/2 of a mile. To 1 point combine the total amount of miles they r
    8·1 answer
  • Cinderella ordered different colored fabrics to make a new dress for the upcoming ball. 20% were blue, 1 10 were white, 40% were
    9·1 answer
  • Determine any data values that are missing from the table, assuming that the data represent a linear function.
    15·1 answer
  • You estimate that your kitchen remodeling project will require an electrician for 30 hours, a plumber for 33 hours and a carpent
    10·1 answer
  • Solve 5/6c+3/4=11/12
    12·2 answers
  • The pre-image is
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!