All categories

3 years ago

What is the number of electrons in the outermost energy level of an oxygen atom?

Chemistry

1 answer:

Alik [6]3 years ago

6 0

Answer:

6 electrons.

Explanation:

An atom of oxygen has six electrons in its outermost energy level, and these are called valence electrons.

You might be interested in

Where are galciers found

Fittoniya [83]

Answer: Antarctica or anywhere

Explanation:

I hope this helps im not sure if I’m correct but I’m sure u can find them anywhere cold

5 0

3 years ago

Read 2 more answers

An old iron battery was discarded in this meadow. The iron in the battery is undergoing a ____ change as it rusts. The rusting i

Lelu [443]

Answer:

chemical

Explanation:

A chemical change is irreversible and leads to the formation of new products.

Rusting occurs as a result of an irreversible chemical reaction between iron, oxygen and moisture. Rusting is the oxidation of iron when exposed to oxygen and moisture.

The rusting of iron is an electrochemical process in which water serves as the electrolyte and iron serves as the anode. The rusting of iron leads to the formation of hydrated iron III oxide (rust) usually seen an brown flakes that surround a rusted iron material.

3 0

3 years ago

3. Beta decay is when a proton and ______ are emitted from a neutron.

ziro4ka [17]

Answer:

d. positron

that's the answer brainly tells me I need to write at least 20 characters and that's d u m b.

7 0

3 years ago

14. A piece of titanium at 100.0°C was dropped into 50.0 g of water at 20.0°C. The final temperature of the system was 22.6°C. W

Gemiola [76]

Answer:

$m_{Ti}=13.0g$

Explanation:

Hello,

In this case, based on the given, we can infer that as titanium is hot and water cold, it cools down whereas the water is heated up, therefore, in terms of heat, we have that the heat lost by the titanium is gained by the water:

$-Q_{Ti}=Q_{H_2O}$

That in terms of mass, specific heat and temperatures is:

$-m_{Ti}Cp_{Ti}(T_2-T_{Ti})=m_{H_2O}Cp_{H_2O}(T_2-T_{H_2O})$

In such a way, for computing the mass of titanium, considering the heat capacity of water 4.18 J/g°C, we have:

$m_{Ti}=\frac{m_{H_2O}Cp_{H_2O}(T_2-T_{H_2O})}{-Cp_{Ti}(T_2-T_{Ti})} \\\\m_{Ti}=\frac{50.0g*4.18\frac{J}{g\°C}(22.6-20.0)\°C}{-0.54\frac{J}{g\°C}*(22.6-100.0)\°C} \\\\m_{Ti}=13.0g$

Regards.

8 0

3 years ago

Why is nh3 classified as a polar molecule

Yanka [14]

Explanation:

An ammonia $(NH_{3})$ molecule contains electronegative nitrogen atom. The difference between electronegativity of nitrogen and hydrogen atom is high.

Therefore, nitrogen will attract the shared pair of electrons more towards itself. As a result, there will be partial positive charge on hydrogen and partial negative charge on nitrogen.

Thus, due to these charges $NH_{3}$ is polar in nature.

4 0

3 years ago