All categories

3 years ago

Sugar when dissolved into water, propose whether the compound forms atoms, molecules or lattices. Justify you answer

Chemistry

1 answer:

kirza4 [7]3 years ago

6 0

Answer:

atoms

Explanation:

for sugar to dissolve in water hydaration must be equal to or greater than the lattice energy or molecular forces so when the molecular forces breaks new atoms are formed for recombination in new compound

You might be interested in

The energy E of the electron in a hydrogen atom can be calculated from the Bohr formula: E = R_y/n^2 In this equation R_y stands

Katarina [22]

Answer:

The wavelength of the line in the emission line spectrum of hydrogen caused by the transition of the electron for the given energy levels is $5.23\times 10^{-5} m$

Explanation:

Given :

The energy E of the electron in a hydrogen atom can be calculated from the Bohr formula:

$E=\frac{R_y}{n^2}$

$R_y=2.18\times 10^{-18} J$ = Rydberg energy

n = principal quantum number of the orbital

Energy of 11th orbit = $E_{11}$

$E_{11}=\frac{2.18\times 10^{-18} J}{11^2}=1.80\times 10^{-20} J$

Energy of 10th orbit = $E_{10}$

$E_{10}=\frac{2.18\times 10^{-18} J}{10^2}=2.18\times 10^{-20} J$

Energy difference between both the levels will corresponds to the energy of the wavelength of the line which can be calculated by using Planck's equation.

$E'=E_{10}-E_{11}=2.18\times 10^{-20} J-1.80\times 10^{-20} J$

$=E'=0.38\times 10^{-20} J$

$\lambda =\frac{hc}{E'}$ (Planck's' equation)

$\lambda = \frac{6.626\times 10^{-34} Js\times 3\times 10^8 m/s}{0.38\times 10^{-20} J}$

$\lambda = 5.2310\times 10^{-5} m\approx 5.23\times 10^{-5} m$

The wavelength of the line in the emission line spectrum of hydrogen caused by the transition of the electron for the given energy levels is $5.23\times 10^{-5} m$

3 0

2 years ago

How many moles of zinc are there in 0.890 g of zinc?

NNADVOKAT [17]

Answer:

There are

4.517

⋅

atoms of Zn in 0.750 mols of Zn.

Explanation:

Since we know that there are

6.022

⋅

atoms in every mole of a substance (Avogadro's Number), there are

6.022

⋅

0.750

atoms of Zn in 0.750 mols of Zn.

4 0

2 years ago

Read 2 more answers

Elements ending in the electron configurations ns^1 are highly reactive metals . What family does these elements belong to ?

myrzilka [38]

Answer:

<h3>A . Alkali metals</h3>

Explanation:

The highlighted elements of the periodic table belong to the alkali metal element family. The alkali metals are recognized as a group and family of elements. These elements are metals. Sodium and potassium are examples of elements in this family.

hope this helps

6 0

2 years ago

Which of these is an environmental effect of building dams?

nadezda [96]

Hmm... I'm unsure but its either B or D.

7 0

3 years ago

Read 2 more answers

Changing a solid to a liquid to a gas is changing the<br> matter.<br> *<br> Your answer

sukhopar [10]

Answer: