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4 years ago

Describe the formation of an ionic compound.

2 answers:

8 0

When a metal reacts with a non-metal, the electrons that are in the metal are transferred to the non-metal which then forms an ion. The compound in the results is called an ionic compound.

timurjin [86]4 years ago

8 0

An ionic compound is formed from the exchange of cations or anions of the participating elements or compounds in the reaction. The formation can be due to the reactions like single displacement or double displacement reactions. The final product has atoms with subscripts that are from the exchange of charges.

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Order the levels of organization from the smallest (1) to the largest (4).

yKpoI14uk [10]

Answer:

cells=1

organ=3

organ system=4

tissue=2

Explanation:

i just did the question right now and i got them all correct.

3 0

4 years ago

One of the emission lines that provides the green color in fireworks, which com s from barium salts, has a wavelength of 505nm.

PSYCHO15rus [73]

Explanation:

(a)

The relation between frequency and wavelength is shown below as:

$c=frequency\times Wavelength
$

c is the speed of light having value $3\times 10^8\ m/s$

Given, Wavelength = 505 nm

Also, 1 m = $10^{-9}$ nm

So,

Wavelength = $505\times 10^{-9}$ m

Thus, Frequency is:

$Frequency=\frac{c}{Wavelength}$

$Frequency=\frac{3\times 10^8}{505\times 10^{-9}}\ Hz$

$Frequency=5.94\times 10^{14}\ Hz$

(b)

Also, $E=\frac {h\times c}{\lambda}$

Where,

h is Plank's constant having value $6.626\times 10^{-34}\ Js$

c is the speed of light having value $3\times 10^8\ m/s$

So,

$E=\frac{6.626\times 10^{-34}\times 3\times 10^8}{505\times 10^{-9}}\ J$

$E=\frac{10^{-26}\times \:19.878}{10^{-9}\times \:505}\ J$

$E=3.94\times 10^{-19}\ J$

(c)

Electromagnetic spectrum is range of the frequencies and their respective wavelengths of the various type of the electromagnetic radiation.

In order of the increasing frequency and the photon energy and the decreasing wavelength the spectrum are:

Red , Orange, Yellow, Green, Blue, Indigo, Violet

Increasing wavelength is the opposite trend. Thus, The longest visible wavelength is red and the shortest is violet.

6 0

3 years ago

How many molecules are in 3.10*10^-3 g of C6H12O6

joja [24]

Molas mass C6H12O6 = 180.15 g/mol

1 mole C6H12O6 -------------- 180.15 g
?? molesC6H12O6 ------------ 3.10x10⁻³ g

3.10x10⁻³ x 1 / 180.15 => 0.00001720 moles

1 mole ------------------------- 6.02x10²³ molecules
0.00001720 moles ---------- ??

0.00001720 x (6.02x10²³) / 1 => 1.035x10¹⁹ molecules

6 0

3 years ago

What are metallic bonds?

klemol [59]

Metallic bonds are forces that holds atoms together in a marlin substance

7 0

3 years ago

Which hypothesis regarding the origin of life on Earth suggests that oxidation-reduction (redox) reactions may be responsible fo

telo118 [61]

The hypothesis that suggests that redox reaction is responsible for the formation of complex organic molecules is :

Reducing Atmosphere Hypothesis

<h3>Reducing atmosphere</h3>

Reducing atmosphere hypothesis states that a reducing atmosphere is a condition whereby the atmosphere has an abundance of negative charges which leads to reducing reaction by the additon of electrons to compounds.

The addition of electrons to the compounds leads to the formation of complex organic molecules. some examples of reducing gases are :

Hydrogen and
Carbon monoxide

Hence we can conclude that The hypothesis that suggests that redox reaction is responsible for the formation of complex organic molecules is : Reducing Atmosphere Hypothesis.

Learn more about reducing atmosphere : brainly.com/question/3553382

3 0

2 years ago