If you form 3.28 moles of FeCl3 in a reaction, how many moles of FeCl2 did you start with? SHOW ALL WORK Plz

Hello Mistyann!

First you need to know amount of barium phosphate is

Half of potassium phosphate, also 2.18 mol.

Molar mass of Barium phosphate is 3·137.2 + 2·(30.97+4·16) g/mol

You can calculate it yourself dear.

Now mass is amount of substance · molar mass.

It has been an honour to teach you, dear,

God bless!

Answer:

200 N to the west b/c we have 1500 to west and

1300 N to east . the forces have a opposite direction.

thus we add the force. and we gain 200N force.

Answer:

-15-12-14=-13

Explanation:

we simplify by opening the bracket

Answer:

B

Explanation:

Weathering is the physical and chemical breakdown of rock at the earth's surface. ... The physical breakdown of rock involves breaking rock down into smaller pieces through mechanical weathering processes. These processes include abrasion, frost wedging, pressure release (unloading), and organic activity.

Answer:

endothermic

Explanation:

Because the value of the heat of reaction is positive .

Answer:

D

Explanation:

we just did this in class last week haha i know my math :)

Answer:

Mountains can have a significant effect on rainfall. When air reaches the mountains, it is forced to rise over this barrier. As the air moves up the windward side of a mountain, it cools, and the volume decreases. As a result, humidity increases and orographic clouds and precipitation can develop

Answer:

Mountains effect them with contact

Explanation:

They are always pushing eachother and crash

Answer:

It has direction and size.

Explanation:

The way I learned it was that vectors have direction and Magnitude. Magnitude is just the length of the vector. So you are right.

Answer:

1.0534×10²⁷ grams

Explanation:

multiplying the number of atoms with Avogadro's constant.

False.....................

Answer:

A violent reaction will occur and zinc sulphide is formed as a product

4 limiting factors could be water, space, pollution, and access to mates, could all be factors in limiting the native population. Water, could be affected by pollution, and this would remove water, which means that no living things would be able to survive, or at the best be hindered in its growth. Space could be removed by deforestation, or simple water rising, and this could kill off the population, thus removing mates for the population. (hope this helped, if it did, please consider marking brainiest)

The availability of food, water, shelter and diseases are the four limiting factors in the local ecosystem and their impact on native populations.

The limiting factors such as availability of food, water, shelter and diseases can change animal and plant populations because these factors has a direct impact on the organisms and the organisms is depend on these factors for their survival.

So we can conclude that availability of food, water, shelter and diseases are the four limiting factors in the local ecosystem and their impact on native populations.

Learn more about population here: https://brainly.com/question/25630111

Answer:

Gas and Liquids

Explanation:

Answer:

Product

Explanation:

Honestly I’m just guessing based on the fact it’s simplified and doesn’t have a really long chemical equation.

Answer:

Steel and cast iron

Explanation:

They are all metal but assuming that you are finding the best material for your pan i suggest going for steel or cast iron

Answer:

There is a ozone layer because of the special atomphere and chemical conditions that takes place there. I think the consequences of that home area is the very low winter temperatures.

Answer:

There is a hole in the ozone layer because of the pollution on earth. Because of that the UV rays are easily entering the earth through that portion. The consequences of this can be cancers, global warming and disastrous storms.

plz mark as brainliest

Answer:

Explanation:

You have to use formula b to your answer

Answer:

360g

Explanation:

Hope it helps you!

Explanation:

C9H2O + 14O2 → 9CO2 + 10H2O

a. How many molecules of nonane will burn in a tank that has 770 mL of oxygen at STP?

From the reaction;

1 mol of nonane reacts with 14 mol of Oxygen

At STP, 1 mol = 22.4 L

Converting 770 ml (0.77 L) to mol;

1 = 22.4

x = 0.77

x = 0.77 / 22.4 = 0.034375 mol

Back to the equation;

1 mol = 14 mol

x mol = 0.034375 mol

Solving for x;

x = 0.034375 * 1 / 14

x = 0.00245535714 mol

1 mol = 6.022 * 10^23 molecules

0.00245535714 mol = x

Solving for x;

x = 0.00245535714 * 6.022 * 10^23

x = 1.4786 * 10^21 molecules

b. If the container were heated to 78O C before the combustion, what would the pressure be?

Initial Pressure P1 = ?

Initial Temperature T1 = 780 +273 = 1053 K

Final Temperature (STP) T2 = 273 K

Final Pressure (STP) P2 = 1 atm

Using gay lusaac's law;

P1 / T1  =  P2 / T2

Inserting the values;

P1 = T1 * P2 / T2

P1 = 1053 * 1 / 273

P1 = 3.857 atm

Answer:

[tex]V_2=1.34L[/tex]

Explanation:

Hello there!

In this case, since this problem is describing how pressure changes as a function of volume and vice versa, it is possible recall the Boyle's law as shown below:

[tex]P_1V_1=P_2V_2[/tex]

Whereas we are asked to compute the volume when the change is pressure is performed (V₂); thus, we proceed as follows:

[tex]V_2=\frac{P_1V_1}{P_2}\\\\V_2=\frac{1.55L*105.2kPa}{122.0kPa}\\\\V_2=1.34L[/tex]

Best regards!

Answer:

There are three methods used to produce salt: solar, evaporation and rock mining.

Explanation:

Answer:

The Answer is A. Scavengers

hello sister the answer is very easy it is 2 miles of oxygen

Answer: Nerves, Brain and spinal cord

Explanation:the other choices are either part of the cardiovascular system or the respiratory system