All categories

4 years ago

Why is glucose named glucose?

Chemistry

1 answer:

mars1129 [50]4 years ago

7 0

Answer:

Word that comes from a Greek word

Explanation:

Glucose is a natural monosaccharide, which has the following molecular formula: C6H12O6

From the chemical point of view, this molecule is a hexose (this is, it has 6 carbon atoms) and an aldose (since it has an aldehyde group)

Glucose as a word has its origin from the Greek word “gleukos”, which means “sweet wine”, and the suffix “ose”, which is used to for a sugar

French people then adapted this word (in order to define a new chemical word, to differentiate the type of sugar found in grapes, slight different from sugar found in other elements such as honey)

You might be interested in

The radioactive isotope of lead, Pb-209, decays at a rate proportional to the amount present at time t and has a half-life of 3.

astraxan [27]

Answer:

It will take 6.6 hours for 75% of the lead to decay.

Explanation:

The radioactive decay follows first order rate law

The half life and rate constant are related as

$k=rate constant=\frac{0.693}{halflife}=\frac{0.693}{3.3}=0.21h^{-1}$

The rate law for first order reaction is

$time=\frac{1}{k}(ln[\frac{A_{0}}{A_{t}}]$

Where

A0 = initial concentration = 1 g

At= final concentration = 0.25 g (as 75% undergoes decay so 25% left]

$time=\frac{1}{0.21}(ln(\frac{1}{0.25})=6.6hours$

5 0

3 years ago

During the first half of the 20th century, the theory of plate tectonics was developed. Evidence supporting this theory included

Makovka662 [10]

A) GPS monitoring and satellite imagery of crustal movements

Explanation:

The most recent evidence supporting the theory of plate tectonics is the use of GPS monitoring and satellite imagery of crustal movements.

GPS denotes Global Positioning Systems.

Satellite imagery is a recent advancement in the study of moving plates.

The global positioning system uses the position of a system of satellites in space to delineate positions on earth.
It works on the principles of triangulation and this helps to fix positions of objects on the earth surface.
With this, the change in position of the plates can be recorded by known fixed positions of objects.
Satellite imagery helps to map changes in terrain with time.
Images can be correlated through time and the shift in terrains delineated.

learn more:

Wegener brainly.com/question/5002949

#learnwithBrainly

5 0

3 years ago

An atom is the smallest unit of an element that retains the _____ of that element answer.com

LenKa [72]

Identity and chemical properties

6 0

4 years ago

Q1. Briefly explain why the Zeff experienced by a valence electron in Cl is larger than in Mg. Q2. Briefly explain why the Zeff

Inessa05 [86]

Answer:

See explanation

Explanation:

Q1:

Chlorine has 17 protons while magnesium has only 12 protons. Recall that the Zeff depends on the size of the nuclear charge. The greater the size of the nuclear charge, the larger the Zeff experienced by a valence electron.

Q2:

The larger the Zeff, the smaller the atomic radius. Since the valence electrons of Cl experience a greater Zeff than those of Mg due to greater size of the nuclear charge, the atomic radius of chlorine will be smaller than that of Mg.

Q3:

The radius of an atom increases as the value of the principal quantum number (n) increases down the group due to addition of more shells. The greater the number of shells added, the greater the principal quantum number (n) and the greater the atomic radius, hence the answer.

5 0

3 years ago

Calculate the amount of heat needed to boil 183.g of ethanol ( CH3CH2OH ), beginning from a temperature of 33.9°C . Round your a

Shkiper50 [21]

Answer:

19,700 Joules

Explanation:

Quantity of heat (Q) = mc(T2-T1)

m (mass of ethanol) = 183g

c (specific heat capacity of ethanol) = 2.44J/g°C

T2 (boiling temperature of ethanol) = 78°C

T1 (initial temperature of ethanol) = 33.9°C

Q = 183×2.44(78 - 33.9) = 183×2.44×44.1 = 19691.532 = 19,700 Joules (to three significant digits)

6 0

3 years ago