All categories

3 years ago

In viewing a chemical equation, how do you determine the ratios that relate reactants and products?

Chemistry

2 answers:

Daniel [21]3 years ago

8 0

From the coefficients of the reactants and products

4vir4ik [10]3 years ago

5 0

In viewing a chemical equation,we <span>determine the ratios that relate reactants and products </span>from the coefficients of the reactants and products .

You might be interested in

If an alkaline battery produces a cell potential of 1.46 v, what is the value of δgcell? the half-reactions in alkaline batterie

Gala2k [10]

The formula we're gonna use for this problem is written below:

ΔG°= nFE°
where
n is number of mol electrons displaced in the reaction
F is Faraday's constant = 96,500 C/mol e
E° is the standard emf

ΔG° = (2)(96,500)(1.46) = <em>281,780 Joules</em>

4 0

3 years ago

Which of the following atoms is likely to transfer (and lose) an electron when it forms an ion? Please choose the correct answer

mestny [16]

Answer:

An atom containing 11 electrons

Explanation:

Metal atoms form ions by a loss of electrons whereas non-metal atoms form ions by the gain of electrons.

The group 1 elements or alkali metals form lose their one valence shell electrons when forming ions; Group 2 metals lose two while Group 3 lose three. On the other hand, non-metal atoms found in Group 5, 6, and 7 forms ions by gaining one, two and three electrons respectively.

Using the electronic configuration of atoms, their groups in the Periodic Table can be determined.

An atom containing 6 electrons has the configuration 2,4 and thus belongs to Group 4.

An atom with 2 electrons belongs to Group 2

An atom with 11 electrons has the configuration 2,8,1 and thus belongs to Group 1

An atom with 10 electrons has the configuration 2,8 and thus belongs to Group 8

An atom with 8 electrons has the configuration 2,6 and thus belongs to Group 6.

From the above, it can be seen that an atom containing 11 electrons belongs to Group 1 and will lose an electron to form an ion.

8 0

3 years ago

If you have 1.29 moles of NaCl in 4 liters of solution, what is the molarity of the solution?

Illusion [34]

Answer:

0.32M

Explanation:

Given parameters:

Number of moles of NaCl = 1.29moles

Volume of solution = 4liters = 4dm³

Unknown:

Molarity of solution = ?

Solution:

Molarity is one the ways of expressing the concentration of a solute in a solution. It is given as;

Molarity = $\frac{number of moles }{volume}$

The unit is given as M which is mol/dm³

Input the parameters and solve;

Molarity = $\frac{1.29}{4}$ = 0.32mol/dm³ or 0.32M

7 0

3 years ago

what bodyy system Filters waste materials (esp. nitrogenous wastes) from blood; maintain water, salt, acid/base, & ion balan

Arada [10]

Please don’t listen to those people who always put links those are scams. The answer is the kidney, ureters, bladder, and urethra. This system filters your blood,removing waste and excess water. Your welcome!

5 0

3 years ago

How is the polarity of a bond different from the polarity of a molecule?

Andreyy89

Answer:

A polar bond is one where the charge distribution between the two atoms in the bond is unequal. A polar molecule is one where the charge distribution around the molecule is not symmetric. It results from having polar bonds and also a molecular structure where the bond polarities do not cancel.

Explanation:

8 0

2 years ago