How many electrons does the Lewis structure for phosphorus trifluoride have?

Answer: Wht is it

Explanation:

Let me know so I can help

Answer:

The earth-atmosphere energy balance is the balance between incoming energy from the Sun and outgoing energy from the Earth. When it reaches the Earth, some is reflected back to space by clouds, some are absorbed by the atmosphere, and some is absorbed in the Earth's surface. ...

Explanation:

Explanation:

18

In chemistry, a group (also known as a family) is a column of elements in the periodic table of the chemical elements. There are 18 numbered groups in the periodic table; the f-block columns (between groups 3 and 4) are not numbered.

Answer:

Na2O

Sodium Oxide (Na2O)

Explanation:

Sodium oxide (Na2O) is an ionic compound. Its constituent atoms are, respectively, a metal and a non-metal. ... Sodium (Na), as a metal, will attempt to lose electrons to reach an octet state.

The resulting ionic compound, Na₂O, consists of positively charged sodium ions (Na⁺) and negatively charged oxide ions (O²⁻).

The ionic compound for sodium oxide is "sodium oxide" itself. In the ionic compound's formula, the metal (sodium) comes first, followed by the non-metal (oxygen). Sodium is an alkali metal with a charge of +1, and oxygen is a non-metal with a charge of -2.

The chemical formula for sodium oxide is Na₂O.

In this ionic compound:

Sodium (Na) loses two electrons to become Na⁺ (cation).

Oxygen (O) gains two electrons to become O²⁻ (anion).

The resulting ionic compound, Na₂O, consists of positively charged sodium ions (Na⁺) and negatively charged oxide ions (O²⁻).

Learn more about ionic compound from the link given below.

https://brainly.com/question/30420333

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Answer:

1:Without friction, we would not be able to stop walking since we would just keep slipping like on ice.

2:Without friction, objects would just slip and fall with a simple blow of air

3:And finally, without friction, we wouldn't be able to use machinery like cars and etc since they would just fly off

Explanation:

Friction can be a useful force because it prevents our shoes from slipping on the pavement when we walk and stops car tires skidding on the road. When you walk, friction is caused between the tread on shoes and the ground. This friction acts to grip the ground and prevent sliding. Sometimes we want to reduce friction.

Answer:

T2 = 550K

Explanation:

From Charles law;

V1/T1 = V2/T2

Where;

V1 is initial volume

V2 is final volume

T1 is initial temperature

T2 is final temperature

We are given;

V1 = 20 mL

V2 = 55 mL

T1 = 200 K

Thus from V1/T1 = V2/T2, making T2 the subject;

T2 = (V2 × T1)/V1

T2 = (55 × 200)/20

T2 = 550K

Answer:

3.4L

Explanation:

Given parameters:

Initial Volume of gas = 6.8L

Initial temperature of gas  = 325°C = 325 + 273  = 598K

Final temperature  = 25°C = 25 + 273  = 298K

Unknown:

Final volume  = ?

Solution:

To solve this problem, we apply the Charles's law. It can be expressed as;

           [tex]\frac{V1}{T1}[/tex]   = [tex]\frac{V2}{T2}[/tex]

V and T are volume and temperature

1 and 2 are initial and final states

Now insert the parameters and solve;

           [tex]\frac{6.8}{598}[/tex]   = [tex]\frac{V2}{298}[/tex]  

          2026.4 = 598V2

          V2 = 3.4L

Answer:

Explanation:

sunlight

soil

water

sugar

carbon dioxide

minerals

leaves

vitamins

Answer: Fusion and fission are similar in that they both release large amounts of energy. Nuclear fusion is a process in which two nuclei join to form a larger nucleus. Nuclear fission is a process in which a nucleus splits into two smaller nuclei.

Explanation:

Answer:

Hope this helps

Explanation:

Answer:

[tex]Fe_{2} O_{3}[/tex]

Explanation:

Explanation:

salt, sugar and coffee :)

Answer:

Nitrogen

Explanation:

Study Island

Answer:

the answer is coal

Explanation:

Answer:

F= -1 (group 7A)

Ca= +2 (group 2)

Explanation:

oxidation #= # electrons atom gains/loses to form chemical bond

>assigned to atoms in oxidation-reduction rxn to indicate ability to donate/ gain e-

> positive oxidation #= loss of e-, negative= gain of e-

rules:

all group 2 elements (ca) have an oxidation state of 2+

group 7A (F)= -1 charge (needs to gain 1 e- to complete octet)

Answer:

Hydrated chromium(III) phosphate or chromium(III) phosphate tetrahydrate.

Answer:

the IUPAC name is chromium(III) phosphate pentahydrate.

Answer:

hahahaha

Explanation:

hahahahahhahahaha soooo funny

Answer:

their is nothing their btw just letting you know

Answer: D

Explanation: trust

Answer:

Explanation:

D

Answer:

1. Vegetable oil

2. Water

3. Dish soap

4. Corn syrup

5. Honey

Answer:

Volume of solvent.... Pretty straight forward

Answer:

A. volume of solvent

Explanation:

if u stir then the rate of solubility will increase

when the solvent is hot it will increase the rate of solubility and vice versa

Answer:

40 mph

Explanation:

Speed = Distance/Time

Take the total distance driven by the car and divide it by the total amount of hours driven.

120/3 = 40

Answer:

True

Explanation:

It is true that every element in the periodic table follows the Aufbau's principle.

The principle states that "the sublevels with lower energies are filled up before those with higher energies".

Answer:False

Explanation:

Answer:

O

Explanation:

CH4+2O2=CO2+2H2O is the correct ans

Answer:

CH4+2O2=CO2+2H2O is the correct answer

Explanation:

Answer:

Each parent's half of the genes acquired  by the offspring. They  have two of each chromosome and hence two alleles of each gene, and one acquired from each parent.