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3 years ago

Which property is best to use when determining the strength of an ionic bond in a solid?

1 answer:

6 0

I think the best property to use is electronegativity since that is how much it attracts/wants electrons. The larger the difference in electronegativity is between two atoms, the stronger the ionic bond will be. This is also why two atoms need to have a minimum difference between the electronegativity to be considered ionic and not covalent.

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Robert and Elaine ran around the high school track during gym class. robert ran 1/2 of the way around the track in 5/6 minute. L

jok3333 [9.3K]

Answer

Incorrect

Explanation

Unpack the problem:

Let the distance round the track to be X.

Speed is the ratio of distance to time.

Robert run a distance of (1/2)x

Elaine run a distance of (3/4)x

Make a plan:

Finding the speed of each.

Compare their speeds to determine who ran faster than who.

Solution:

Robert's speed =(1/2)x/(5/6)

=1/2×6/5x

= (3/5)x

= 0.6x

Elaine's speed = (3/4)x/(9/10)

= (3/4)×(10/9)x

= (5/6)x

= 0.83333x

Elaine ran faster than Robert. 

Look back and explain:

0.83333x > 0.6x

Elaine's speed is higher than Robert's speed.

This shows that Elaine ran faster than Robert.

5 0

3 years ago

Knitting a scarf. On average she can knit 2 mm in 35 minutes. Express this as a rate in mm/min

Natali5045456 [20]

Answer:

she can knit 1mm/17.5min or she can knit 1mm in 17 minutes and 30 seconds.

8 0

2 years ago

What are the solutions to the quadratic equation x^2-16=0

maks197457 [2]

Good evening.

This is a incomplete quadratic equation, because it does not have the term bx. Therefore, we can solve this faster with the following strategy:

$\mathsf{x^2 - 16 = 0}$

Add 16 to both sides:

$\mathsf{x^2 - 16 + 16 = 0 + 16}\\ \\ \mathsf{x^2 = 16}$

Take the square root:

$\mathsf{\sqrt {x^2} = \pm\sqrt{16}}\\ \\ \mathsf{\boxed{\mathsf{x = \pm4} }}$

Therefore:

$\boxed{\boxed{\mathsf{S=\{-4, \ +4\}}}}$

4 0

3 years ago

How do u multiply monimials

krek1111 [17]

Two multiply 2 monomials, you have to multiply the coefficients and add the degrees. For example

2x^2 × 3x^3 =

6x^5

6 0

3 years ago

PLEASE ANSWERRRRRRR

Mademuasel [1]

Answer:

Step-by-step explanation:sorry

8 0

3 years ago