help pls this is due tomorrow

Answer:

25 mol.

Explanation:

The balanced chemical equation for the reaction depicted in this question is as follows:

4Fe + 3O2 → 2Fe2O3

Based on the above balanced equation, 4 moles of Fe produced 2 moles of Fe2O3.

Hence, 50 moles of Fe will produce as follows:

50 mol Fe × 2 mol Fe2O3/4 mol Fe

= 100/4

= 25 mol of Fe2O3

Answer:

6.25 x 10^-4 moles H2O

Explanation:

moles H2O = 10 x 10^-3 g O2 x (1 mol O2/MM O2) x (2 moles H2O/ 1 mol O2) =

= (10^-2 / 32) x 2 = 6.25 x 10^-4 moles H2O

conversion factor 2moles H2O = 1 mol O2

MM O2 = 32g/mol

mass O2 = 10 mg = 10 x 10^-3 g

Answer:

New volume of gas = 95.93 ml (Approx)

Explanation:

Given:

Old volume of gas = 86 ml

Old temperature = 30°C = 30 + 273 = 303 K

New temperature = 65°C = 65 + 273 = 338 K

Find:

New volume of gas

Computation:

V1T2 = V2T1

(86)(338) = (V2)(303)

New volume of gas = 95.93 ml (Approx)

Answer:

c

Explanation:

Answer:

I think ur answer would be C.)

Explanation:

hope this helps <3

Answer: Thermal Energy

Explanation:

Answer:

1. answer is subcutaneous tissue 2. answer is spleen

Explanation:

The subcutis is also known as the hypodermis or subcutaneous layer, and functions as both an insulator, conserving the body's heat, and as a shock-absorber, protecting the inner organs.

Excretory Organs. Organs of excretion include the skin, liver, large intestine, lungs, and kidneys. Together, these organs make up the excretory system.

Answer:

the answer is Subcutaneous Tissue

Explanation:

and the second one is Intestine

Answer:

44.8 g

Explanation:

Density = mass / Volume

Mass = density x Volume = 8.96x 5 = 44.8 g

radiation is energy that comes from a source. (travels through the speed of light)

Answer:

True.

Explanation:

Answer:

[tex]CCl_{2}[/tex]

Explanation:

When calculating an empirical formula from percentages, assume you have a 100g sample. This allows you to convert the percentages directly to grams, because X % of 100g is X grams.

So:

14.6% C = 14.6g C, 85.4%Cl = 85.4g Cl

The next step is to divide each mass by their molar mass to convert your grams to moles.

14.6g/12.01 = 1.22 mol

85.4g/35.45= 2.41 mol

Then you will divide all of your mol values by the SMALLEST number of moles. This gives you whole numbers that are the mole ratio (subscripts) of the empirical formula.

1.22 mol/1.22 mol = 1

2.41 mol/1.22 mol = 2

So the empirical formula is

[tex]CCl_{2}[/tex]

The empirical formula of the compound is CCl2.

HOW IS EMPIRICAL FORMULA CALCULATED:

C = 14.6g ÷ 12g/mol = 1.22mol

Cl = 85.4g ÷ 35.5g/mol = 2.41mol

C = 1.22mol ÷ 1.22 = 1

Cl = 2.41mol ÷ 1.22 = 1.97

Approximately, the carbon to chlorine ratio is 1:2, hence, the empirical formula of the compound is CCl2.

Learn more: https://brainly.com/question/14044066?referrer=searchResults

Answer:

Habitat loss

Explanation:

Have a great day!

Answer:

Habitat Lost

Explanation:

I got 100% on the test. (:

Answer:

The process of photosynthesis occurs when green plants use the energy of light to convert carbon dioxide (CO2) and water (H2O) into carbohydrates. Light energy is absorbed by chlorophyll, a photosynthetic pigment of the plant, while air containing carbon dioxide and oxygen enters the plant through the leaf stomata.

Answer:

Hydrogen

Lithium ,Beryllium,Nitrogen

Sodium.Magnesium,Phosphorus

Potassium,Calcium,Arsenic

Rubidium,Strontium,Antimony

The element in period 6 that would have chemical properties similar to nitrogen is bismuth.

The chemical properties of an element like oxidation states, reactivities, among others, are mainly related to its electronic configuration.

Elements located in the same group on the periodic table will have similar chemical properties since the electron configuration in their outer shell is the same.            

The electronic configuration of nitrogen is the following:

1s² 2s² 2p³  

Of all the elements of period 6, bismuth is the one that is located in the same nitrogen group (group 15), whose electronic configuration is:

[Xe] 4f¹⁴ 5d¹⁰ 6s² 6p³  

The electron configuration of group 15 (ns² np³) is which gives them chemical properties like high reactivity at high temperatures, high reactivity with oxidant acids (except for nitrogen), low or almost no reactivity with water, etc.    

Therefore, bismuth is the element in period 6 that would have chemical properties similar to nitrogen.

Find more here:

I hope it helps you!            

Answer:

All cells function in unique ways

Explanation:

The 3 parts of the cell theory states that

- all biological organisms are composed of cells

- cells are the unit of life

-  all life come from preexisting life.

Answer:

the answer is A

Explanation:The earth's spin axis is tilted with respect to its orbital plane. This is what causes the seasons.

Answer:

Cell Wall

Explanation:

In plant cells, the cell wall is rigid the outer structure that protects the plant cell.

Answer: it's 0.0000082 L, sorry if I'm wrong

Explanation:

:)

Answer:

C

Explanation:

Answer:

The sequence from longest wavelength (radio waves) to shortest wavelength (gamma rays) is also a sequence in energy from lowest energy to highest energy. Remember that waves transport energy from place to place. The energy carried by a radio wave is low, while the energy carried by a gamma ray is high.

IM IN THAT CLASS TOO

Im abt to do it and ill send u all the answers when im

done, add me on sxxap or instaxxxgram so i can send it to u

my userneamen both: Bellaberrygood

Answer:Snow in the atmosphere. Once snow crystals form in the atmosphere, they grow by absorbing surrounding water droplets. The snowflakes we end up seeing on the ground are an accumulation of these ice crystals.

Explanation:

Answer: Snow is defined as wet if there's a presence of water. within the context of snow formation, "dry" and "wet" don't seem to be used literally. Instead, they're wont to provide a distinction supported how each kind of snow is created and therefore the resulting property of either type. When the snowflakes are formed within the atmosphere, gravity takes over.  Explanation: Because there were no statements I had to show the definition instead I hope this helped you to find your answer

Answer:

its a

Explanation:

yw

The respiratory and circulatory systems work together to maintain the homeostasis of the human body. The circulatory system is the transport system for the respiratory system. The correct option is A.

The network of organs and tissues which help us to breathe is defined as the human respiratory system. The main function of this system is to introduce oxygen into the body and to expel carbon dioxide from the body.

The human circulatory system consisting of arteries, veins and capillaries provide all the essential nutrients, minerals and hormones to the various parts of the body.

The respiratory system does not work alone in transporting oxygen through the body. The oxygen taken in from the respiratory system moves into blood vessels that then circulate oxygen rich blood to tissues and cells.

Thus the correct option is A.

To know more about the respiratory system, visit;

https://brainly.com/question/19306828

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