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LenKa [72]
3 years ago
11

You can increase a step-up transformer's voltage with

Chemistry
1 answer:
kodGreya [7K]3 years ago
8 0

Answer:

A. a power source connected to the primary coil

Explanation:

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For the reaction 2Fe + O2 > 2FeO, how many grams of iron oxide are produced from 5.00 moles of iron?
Greeley [361]

Answer:

359 grams FeO

Explanation:

To find how many grams FeO are produced, you need to use the moles of Fe, convert it to moles of FeO (using the mole-to-mole ratio from the equation), then convert the moles of FeO to grams (using the molar mass from the periodic table).

2 Fe + O₂ --> 2 FeO

Molar Mass (FeO) = 55.845 g/mol + 16.00 g/mol

Molar Mass (FeO) = 71.845 g/mol

5.00 moles Fe           2 moles FeO            71.845 grams
----------------------   x  ------------------------  x  ----------------------  = 359 grams FeO
                                   2 moles Fe               1 mole FeO

5 0
2 years ago
An environmental scientist studies _______.
Assoli18 [71]

An environmental scientist studies the environment - you can see that in the beginning of the sentence :)
7 0
3 years ago
Read 2 more answers
Pls help, How is stoichiometry used to calculate amounts of substances in a chemical reaction?
Elden [556K]

Answer:

Thus, to calculate the stoichiometry by mass, the number of molecules required for each reactant is expressed in moles and multiplied by the molar mass of each to give the mass of each reactant per mole of reaction. The mass ratios can be calculated by dividing each by the total in the whole reaction.

Explanation: Stoichiometry is the field of chemistry that is concerned with the relative quantities of reactants and products in chemical reactions. For any balanced chemical reaction, whole numbers (coefficients) are used to show the quantities (generally in moles ) of both the reactants and products.

7 0
3 years ago
Which of the following refers to a chemical property
LuckyWell [14K]
Reactivity<span> refers to a chemical property </span>
8 0
4 years ago
The answer is 51 ml but can someone explain why please
makvit [3.9K]

Answer:

Ok so I dont have a paper on me, but to solve this, first you need to know, 1 ml is 1 cubic centimeter, okay so we need to find the volume, which is 4/3 times pie times r cubed, the answer to this equation will then bet 51 cubic centimeters which directly translate to 51 ml pushed out of the full cup

6 0
3 years ago
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