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3 years ago

Which statement best describes ionic bonding?

Physics

2 answers:

qwelly [4]3 years ago

8 0

Answer:

Explanation:

Ionic bonds work when a metal gives an electron to a nonmetal and this difference in charge is how they bond.

Aliun [14]3 years ago

3 0

Answer:

Option A

Explanation:

=> A metal atom transfers or loses electron(s) to becomes an anion.

=> A non-metal atoms gains electron(s) to become cation.

=> The bond between anion and cation is an Ionic bond.

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An object 5.Ocm in the length is placed at a distance of 20cm in front of convex mirror

andrew-mc [135]

Answer:

Position = $\frac{60}{7}\ cm$ behind the mirror

Nature = Virtual and Erect

Size = $\frac{15}{7}\ cm$ : Diminished

Explanation:

Sign convention-Distance measured to the left of pole is negative and to the right of pole is positive.

Object distance = u = -20 cm

Focal length = f = Radius of curvature/2 = 30/2 = 15 cm

We have to use mirror formula to find image distance.

$\frac{1}{u}+\frac{1}{v}=\frac{1}{f}\\ \frac{1}{-20}+\frac{1}{v}=\frac{1}{15}\\ \frac{1}{v}=\frac{7}{60}\\v=\frac{60}{7}\ cm$

Since the image distance is positive, it is formed behind the mirror or a virtual image is formed.

Magnification = $=\frac{h_{image}}{h_{object}}=$ $-\frac{v}{u}=\frac{60}{7\times20}=\frac{3}{7}$

Height of the object = 5 cm

Height of the image = $5\times\frac{3}{7}=\frac{15}{7}\ cm$

Since the height of the image is positive and less than the size of object,it is erect and diminished.

4 0

3 years ago

In which of these situations would there be the least kinetic energy?

Alexandra [31]

C. a truck rolling down hill

7 0

3 years ago

Which type of rock would form from a lava following a volcanic eruption

melisa1 [442]

When lava reaches the surface of the Earth through volcanoes or through great fissures the rocks that are formed from the lava cooling and hardening are called extrusive igneous rocks. Some of the more common types of extrusive igneous rocks are lava rocks, cinders, pumice, obsidian , and volcanic ash and dust.

5 0

3 years ago

Complete the sentence. Atoms form chemical bonds to satisfy the _____ rule and to become ______ .

Aliun [14]

the first one is octet and the second one is stable

6 0

3 years ago

Read 2 more answers

What is another name for the dependent variable in an experiment? A. A manipulated variable B. A responding variable C. A contro

SIZIF [17.4K]

The answer to your question is,

A. A manipulated variable.