2 years ago

2. Why do ions form?

2 answers:

7 0

Answer:

When atoms lose or gain electrons, they become positively or negatively charged ions. In an ionic compound, the ions are arranged in a three-dimensional structure called a crystal. ... When an atoms gains or loses electrons, it gains a charge, thus becoming an ion.

Explanation:

k0ka [10]2 years ago

5 0

Answer:

The iron ore deposits began forming when the first organisms capable of photosynthesis began releasing oxygen into the waters.

Explanation:

You might be interested in

Why are fibers birefringent

horrorfan [7]

Inevitable manufacturing imperfections in optical fiber leads to birefringence, which is one cause of pulse broadening in fiber-optic communications. Such imperfections can be geometrical (lack of circular symmetry), due to stress applied to the optical fiber and/or due to bending of the fiber.

4 0

2 years ago

Read 2 more answers

Which of the following is true about an abiotic resource?

aev [14]

Answer:

B. It is a nonliving resource.

Explanation:

The definition of abiotic is "nonliving," and examples of abiotic resources may include soil or water.

5 0

3 years ago

How many protons and neutrons are in the nucleus of isotope with mass of 68.926 amu?

Sidana [21]

There are 30 protons and 39 neutrons in the nucleus.

This must me the isotope of an element with an atomic mass close to 69 u.
The only candidates are Zn and Ga.
Zn has a zinc-69 isotope with mass 68.926 u.
Ga has a gallium -69 isotope with mass 68.925 u.
The isotope is probably $_{30} ^{69}Zn$ .
It has 30 protons and 39 neutrons.

4 0

2 years ago

Human skin color varies widely around the world, and children do not always exhibit the exact same coloring as their parents. Ba

makvit [3.9K]

D an example of polygenic inheritance

ps this is more biology than chemistry

6 0

2 years ago

How many molecules of glucose are in 5. 72 grams of glucose c6h12o6?.

liq [111]

Answer:

5.72 g ( 1 mol / 180.16 g ) ( 6.022 x 10^23 molecules / mole ) = 1.90x10^23 molecules

4 0

1 year ago