How many atoms are there in one molecule of hexane? (a) six
(b) ten
(c) twelve
(d) twenty

Answers

Answer 1

Answer: D Twenty because it has 6 of carbon and 14 of hydrogen.

Answer 2

Answer: Hexane is C6H14 so there are 6 carbons and 14 hydrogen so the answer is D...

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What is the chemical name for Fe(HCO3)2

Answers

The answer is Iron(II) Hydrogen Carbonate. It can also be known or referred as Ferrous Hydrogen Carbonate or even Iron(II) Bicarbonate. The known formula for this chemical is Fe(HCO3)2. The Molar Mass of this chemical is known as 177.8787. Here are some chemical reactions that may be equivalent to this chemical: FeCO3 + H2CO3 = Fe(HCO3)2; or Fe(HCO3)2 = FeCO3↓ + CO2 + H2O; or Fe(HCO3)2 + 2HNO3 = Fe(NO3)2 + 2H2O + 2CO2

The chemical name for Fe(HCO₃)₂ is iron(II) bicarbonate.

Iron (II) compounds typically form coordination complexes with ligands that have a higher affinity for binding to the iron ion. Bicarbonate is a relatively weak ligand and is more commonly found as a component of soluble salts, such as sodium bicarbonate (NaHCO3) or potassium bicarbonate (KHCO3).

In this compound, the iron ion has a +2 charge, and the bicarbonate ion (HCO3-) has a -1 charge. When these ions combine, the resulting compound is named accordingly with the Romannumeral (II) to indicate the iron ion's charge.

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Juan created a chart to help him study for a test.A 2-column table. The first column labeled X has entries some light is reflected, some light is absorbed, no light passes through. The second column labeled Y has entries some light is reflected, some light is absorbed, some light is reflected, most light passes through.

Which headings best complete the chart?

X: Transparent Objects
Y: Opaque Objects
X: Opaque Objects
Y: Transparent Objects
X: High Frequency Waves
Y: Low Frequency Waves
X: Low Frequency Waves
Y: High Frequency Waves

Answers

The light in the electromagnetic spectrum which passes in first case is through opaques objects while in second case it is transparent objects.

What is an electromagnetic spectrum?

The electromagnetic radiation consists of waves made up of electromagnetic field which are capable of propogating through space and carry the radiant electromagnetic energy.

The radiation are composed of electromagnetic waves which are synchronized oscillations of electric and magnetic fields . They are created due to change which is periodic in electric as well as magnetic fields.

In vacuum ,all the electromagnetic waves travel at the same speed that is with the speed of air.The position of an electromagnetic wave in an electromagnetic spectrum is characterized by it's frequency or wavelength.They are emitted by electrically charged particles which undergo acceleration and subsequently interact with other charged particles.

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Answer:

B) X: Opaque Objects

Y: Transparent Objects

Explanation:

Just had this question and got it right

Climatology is a subspecialty of

Answers

Climatology is a subspecialty of a Climate and for how the climate changes. This is averaged out from over a set of a period of time.

I hope this helps! ;D

Which formula is MgI2

Answers

Answer:

Magnesium iodide (MgI2)

7. You found that 1.50 ml of a liquid has mass of 2.750g. What is the density of the unknown liquid?

Answers

To find density, you just divide the mass by the volume (density is the measurement of the amount of mass in a certain volume):

$density=(mass)/(volume)=(2.750\ g)/(1.50\ mL)=1.833\ g/mL$

How many moles are represented by 118g of cobalt? Cobalt had an atomic mass of 58.93amu

Answers

2.0 moles are represented by 118g of cobalt.

What are moles?

A mole is defined as 6.02214076 × $10^(23)$ of some chemical unit, be it atoms, molecules, ions, or others. The mole is a convenient unit to use because of the great number of atoms, molecules, or others in any substance.