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Juli2301 [7.4K]
3 years ago
10

7. Carbon-11 has a half-life of 20 minutes. Explain what this means.

Chemistry
1 answer:
Nikolay [14]3 years ago
6 0

Answer:

half life of carbon 11=20 mins

it means that after 20 mins the given sample of carbon-11 will reduce by half of its original value

Explanation:

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What volume would be occupied by 8.1 g of a substance with a density of 1.65041 g/cm3 ? answer in units of cm3 ?
ladessa [460]
Hey there!

Mass = 8.1 g

density = 1.65041 g/cm³

Volume = ?

Therefore:

D = m / V

<span>1.65041  = 8.1 / V

V = 8.1 / </span><span>1.65041 g

V = 4.907 cm</span>³
7 0
2 years ago
Two posssible lewis structures for the molecule ch2s are given. determine the formal charge on each atom in both structures
jok3333 [9.3K]

The formal charge on each atom can be known by counting up the number of valence electrons that is present on each atom.

<h3>What is Lewis structure?</h3>

The term Lewis structure is the representation of a compound using its symbols and showing the valence electrons as dots. This question is incomplete as the Lewis structures were not shown.

If it is shown, we can know the formal charge on each atom by counting up the number of valence electrons that is present on each atom.

Learn more about Lewis structure: brainly.com/question/4144781

8 0
2 years ago
5. Write word equations for the following reactions
Andrews [41]

Answer:

a) Sulphur + Oxygen → Sulphur dioxide

b) Carbon + Oxygen → Carbon dioxide

c) Sulphur + Iron → Iron sulphide

6 0
3 years ago
Gaseous dichlorine monoxide decomposes readily to chlorine (green) and oxygen (red) gases.
Stolb23 [73]

The reactants are oxygen and nitrogen monoxide.

<h3>What is nitrogen monoxide?</h3>

Nitrogen oxide, also known as nitrogen monoxide or nitric oxide, is an inert gas with the chemical formula NO. It is one of the main nitrogen oxides. Free radical nitric oxide (•N=O or •NO) possesses an unpaired electron, which is commonly indicated by a dot in its chemical formula. As a heteronuclear diatomic molecule, nitric oxide also contributed to the development of early modern theories of chemical bonding.

Nitric oxide is a chemical compound that occurs in combustion systems and can be produced by lightning during thunderstorms. It is a crucial intermediate in industrial chemistry. In many physiological and pathological processes in animals, including humans, nitric oxide serves as a signaling molecule.

To learn more about nitrogen monoxide from the given link:

brainly.com/question/13428103

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8 0
1 year ago
1. The common name for the compound CH3-CH2-O-CH3 is ​
Ket [755]

Answer:

propane

Explanation:

please mark me as brainliest

3 0
2 years ago
Read 2 more answers
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