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JulsSmile [24]
3 years ago
12

Ionic bonds occur between?

Mathematics
1 answer:
Mademuasel [1]3 years ago
5 0

Answer:

Ionic bonds usually occur between metal and nonmetal ions. For example, sodium (Na), a metal, and chloride (Cl), a nonmetal, form an ionic bond to make NaCl. In a covalent bond, the atoms bond by sharing electrons. Covalent bonds usually occur between nonmetals.

An ionic bond is held together by the electrostatic attraction between ions that are near one another. Electrostatic attraction is the attraction between atoms that have opposite charge and holds the atoms together in ionic bonds.

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Expand and simplify 9(2x + 3) + 4x
aleksandr82 [10.1K]

Answer:

22x+27

Step-by-step explanation:

Let's simplify step-by-step.

9(2x+3)+4x

Distribute:

=(9)(2x)+(9)(3)+4x

=18x+27+4x

Combine Like Terms:

=18x+27+4x

=(18x+4x)+(27)

=22x+27

4 0
3 years ago
Read 2 more answers
The expression (x − 4)2 is equivalent to x2 − 16 x2 + 16 x2 − 8x + 16 x2 + 8x + 16
zzz [600]

Answer:

Given below

Step-by-step explanation:

The algebraic identity is (a-b)^2

= a^2 + b^2 - 2ab

So it'll be,

(x-4)^2

= x^2 + (4)^2 - (2)(x)(4)

= x^2 -8x + 16

or x^2 +16 -8x

4 0
3 years ago
Please help ill mark you the brainlist The scale on a map indicates that 1 cm represents 50 km. If two cities are 400 km apart,
Andrej [43]

Answer:

8 cm

Step-by-step explanation:

divide 400 by 50 which is 8.

8 0
3 years ago
5. Let f be a continuous and differentiable function for all real numbers. The only critical points for f are located
ollegr [7]
Ok so the answer is super simple, its A
6 0
2 years ago
The depth of a lake, d, varies directly with r, the amount of rainfall last month. if k is the constant of variation, write an e
irina1246 [14]
Answer:
d = kr

Explanation:
We know that the depth (d) varies directly with the amount of rain (r).
This means that as the amount of rain increases, the depth increases and vice-versa.
The depth would depend on r multiplied by a constant of variation (k)

Translating this into equation, we would get the following:
d = kr

Hope this helps :)
4 0
3 years ago
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