For the following reaction: Fe2O3 + 3CO --> 2Fe + 3CO2 how many grams of Fe2O3 is needed to produce 111 g of Fe?

Answers

Answer 1

Answer: You need 158.70 grams of Fe2O3 to produce 111 grams of Fe. This is calculated by using the molar masses and stoichiometric relationship of the two compounds.

Solution:

MM Fe = 55.845 g/mol
MM Fe2O3 = 159.69 g/mol
Fe: Fe2O3 = 2 mol:1 mol

11 g FE (1 mol Fe/55.845 g Fe) (1 mol Fe2O3/2 mol Fe) (159.69 g Fe2O3 / 1 mole Fe2O3) = 158.70 grams Fe2O3

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The true color of water isa. clear.
b. greenish blue.
c. sky blue.
d. green. E. white.

Answers

a. clear.
Water is transparent.

Can someone help me with my chemistry homework?!

Answers

Answer:

calculate grams and use mole ratio lol

Explanation:

Answer:

Explanation:

The value of the equilibrium constant for the combination of nitrogen and oxygen to make NO is 2 x 10-9. What does this tell you about the concentrations of materials in the equilibrium mixture?

Answers

Answer: The reaction must proceed in the reverse direction.

Explanation:

$K_p$ is the constant of a certain reaction at equilibrium while $Q_p$ is the quotient of activities of products and reactants at any stage other than equilibrium of a reaction.

For the given chemical reaction:

$N_2(g)+O_2(g)\rightleftharpoons 2NO(g)$

The expression of $K_p$ for above equation follows:

$K_p=((p_(NO))^2)/(p_(N_2)* p_(O_2))$

We are given:

$K_p=2* 10^(-9)$

There are 3 conditions:

When $K_(p)>1$ ; the reaction is product favored.

When $K_(p)<1$ ; the reaction is reactant favored.

When $K_(p)=1$ ; the reaction is in equilibrium.

As, $K_p<1$ , the reaction will be favoring reactant side or the reaction must proceed in the reverse direction.

Hence, the reaction must proceed in the reverse direction.

Which of the following factors renders a species more susceptible to disease and infertility?

Answers

The correct answer is this one: "B. inbreeding." Inbreeding renders a species more susceptible to disease and infertility. On the other hand, Large genetic diversity tends to be perceived as beneficial so that a single disease does not wipe out a species.

Here are the choices
A. Large genetic diversity
B. inbreeding
C. crossbreeding
D. recessive traits

Answer:

inbreeding

Explanation:

What information does a chemical formula of a compound provide?a. The type and amount of elements
b. The different kinds of compounds included within the chemical formula
c. The types of molecules present in a formula
d. The correct amounts of substances to mix together to make a formula

Answers

I think the best option is A. A chemical formula of a compound provides information on the type and amounts of elements in that compound. For instance, we have NaOH. From the given formula, we see that it contains the elements sodium, oxygen and hydrogen. Also, their corresponding number of molecules.

For the precipitation lab, what would be an appropriate use of a beaker?

Answers

For chemical changes like precipitation, appropriate use of a beaker is to provide space for the precipitate to form and for the color of the precipitate to be distinct.

Chemical changes are defined as changes which occur when a substance combines with another substance to form a new substance.Alternatively, when a substance breaks down or decomposes to give new substances it is also considered to be a chemical change.

There are several characteristics of chemical changes like change in color, change in state , change in odor and change in composition . During chemical change there is also formation of precipitate an insoluble mass of substance or even evolution of gases.

Thus, appropriate use of a beaker is to provide space for the precipitate to form and for the color of the precipitate to be distinct.

Learn more about chemical changes,here:

brainly.com/question/23693316

#SPJ12

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0.25 mole of O2 will contain the same number of molecules as 0.25 mole of NH3.true or false ??

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What mass of sodium carbonate is required to prepare 2.00 l of 0.250 M Ma2CO3 solution

What is the mass of 1 mole of Na3,PO4?