All categories

3 years ago

Given the balanced equation representing a reaction:

2 answers:

6 0

As aluminium loses 12 moles of electrons oxygen gain 12 moles of electrons.

Explanation
4Al + 3 O2→ Al2O3
first write the ions of Aluminium and oxygen

that is, Aluminium ion is = Al^3+
oxygen ion is = O^2-
therefore one atom of Al loses 3 electrons moles while
one atom of O gain 2 electrons moles

from equation above there a total of number of Al atom are 4 =( 1 x4=4) atoms while
Oxygen atoms are 6= ( 3 x2=6) atoms

therefore the total number of Moles of Al lost is = 3 x 4 = 12 moles of electrons

total number of moles of O gained = 2 x6 = 12 moles of electrons

Mamont248 [21]3 years ago

3 0

Base on the question, which of the following that sates the balance of the reaction and as the aluminum loses 12 moles of electrons, what could be the oxygen, and base on my research, the possible answer among them is in number (2) gains 12 moles of electrons, I hope you are satisfied with my answer and feel free to ask for more

You might be interested in

A sample of sand, 5cm in diameter and 10 cm long, was prepared at a porosity of 50% in a constant head apparatus. The total head

GarryVolchara [31]

Answer:

$K = 2.037*10^{-3} m/s$

$V_s = 0.0122 \ m/s$

Explanation:

Given that;

diameter (d) = 10cm/2 = 0.1m/2 = 0.05 m

length (l) = 10 cm = 0.1 m

porosity = 50%

height (h) = 30 cm = 0.3 m

time (t) = 5 s

volume (v) = 60 cm³ = 60 × 10⁻⁶ m³

Q (flow rate) = $\frac{v}{t}$

Q = $\frac{60*10^{-6} m^3}{5}$

Q = $12*10^{-6} m^3 /sec$

From constant head method, we use the relation K = $(\frac{Q*L}{A*h})$ to determine the hydraulic conductivity ; we have:

$K = \frac{12*10^{-6}*0.1}{\frac{\pi}{4}0.05^2*0.3}$

$K = 0.002037\\\\K = 2.037*10^{-3} m/s$

Seepage velocity $V_s = \frac{velocity }{porosity}$

where; velocity = $K*i$

= $(2.037*10^{-3}*)(\frac{0.3}{0.1})$

= $6.111*10^{-3} m/s$

$V_s = \frac{6.111*10^{-3}}{0.5}$

$V_s = 0.0122 \ m/s$

8 0

4 years ago

What the recipe of momo

viktelen [127]

Answer:

Down is the recipe for momo..

Explanation:

recipe..

. Sieve the wheat flour carefully to remove lumps.

. Add water and knead the flour well to prepare a dough

. Remove the skin of the boiled potato ,cut into small pieces

. Heat the cooking oil in frying pan, and fry the pieces of onions cabbage green chili tomato pea etc.

. Prepare a mix veg stuffing by mixing potato other vegetables , green coriander and salt.

. Prepare a small balls of dough and roll it out of belna.

. Put 10 gm of mix vegetables stuff in the center of rolled dough and close it from all the sides to make a small ball.

. steam the momo for 10-15 minutes. After that it will be ready to serve.

. A sauce or pickle is usually eaten with momo.

6 0

3 years ago

An electric current can be measured with a device called?

worty [1.4K]

Answer: Ammeter

Explanation:

7 0

3 years ago

The table shows columns that brenda uses for her notes on the properties of elements. her notes state that some elements can rea

AleksandrR [38]

The element should be placed in the column for metalloids. Option A

<h3>What is the property of metals?</h3>

We know that the properties of metals can be used to identify an unknown substances as a metal. We know that metals are able to react with acids to liberate the metal salt and hydrogen gas. Metals do not react with bases because they can not accept electrons.

Metalloids are generally amphoteric in nature. They can react with both the acid and the basses to form compounds. The nonmetals do not react with acid or base.

Looking at the result, we are told that the entry in the second row have the entries nothing, nothing, nothing. If this is the outcome, then it follows that the element should be placed in the column for metalloids.

Learn more about metalloids:brainly.com/question/2548493

#SPJ1

4 0

2 years ago

A sample of potassium chlorate (15.0 g) is dissolved in 201 g of water at 70 °c with precautions taken to avoid evaporation of a

zlopas [31]

Answer is: unsaturated.
Solubility of potassium chlorate on 70°C is approximately 30 grams in 100 grams of water.
Solubility of potassium chlorate on 70°C is approximately 10 grams in 100 grams of water.
So if dissolve 15 g of potassium chlorate in 201 g of water, there is less salt than it solubility and solution is unsaturated.

4 0

3 years ago