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bixtya [17]
2 years ago
6

What is true of a synthesis reaction?

Chemistry
2 answers:
RUDIKE [14]2 years ago
6 0

There is only one product in a synthesis reaction.

sergey [27]2 years ago
6 0

Answer:

There is only one product.

Explanation:

A synthesis reaction is what the name indicates, a reaction where two or more substances or elements converge to create a new compound out of the elements that are the reactants, it has only one product as it is a new compound formed by the reactants and it must have at leas two or more reactants that give place to a new product.

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In the lab you weigh out 76.02 g of Iron (Fe). How many moles of Iron do you have in the sample. (Your answer must have a unit..
son4ous [18]

Answer:

We have 1.361 moles in the sample

Explanation:

Mass of iron = 76.02g

Molar mass of iron = 55.845 g/ mole ( This we can find in the periodic table, and menas that 1 mole of iron has a mass of 55.845 g).

To calculate the number of moles we will use following formula:

moles (n) = mass / molar mass

moles iron = 76.02g / 55.845 g/ mole

moles iron = 1.36127 moles

To use the correct number of significant digits we use the following rule for multiplication and division :

⇒ the number with the least number of significant figures decides the number of significant digits.

⇒76.02 has 4 digits ( 2 after the comma) and 55.845 has 5 digits (3 after the comma).

⇒ this means 1.361 moles

We have 1.361 moles in the sample

3 0
3 years ago
What quantity of aluminium is deposited when a current of 10A is passed through a solution of aluminium salt for 1930s? (All=27,
Arlecino [84]

Answer:

AL*3+ + 3e- =AL.

(10A×1930)÷96500=0.2mole e-

0.2÷3×27=1.8g(AL)

6 0
3 years ago
Which statement correctly contrasts science and pseudoscience
mojhsa [17]
brainly.com/question/1470976 Hope this helps!
8 0
3 years ago
2. How many grams of zinc will be formed if 32.0 g of copper reacts with zinc nitrate? Copper(I)nitrate is the other product.
Yakvenalex [24]

Answer:

16.46 g.

Explanation:

  • It is a stichiometry problem.
  • We should write the balance equation of the mentioned chemical reaction:

<em>2Cu + Zn(NO₃)₂ → Zn + 2Cu(NO₃).</em>

  • It is clear that 2.0 moles of Cu reacts with 1.0 mole of Zn(NO₃)₂ to produce 1.0 mole of Zn and 2.0 moles of Cu(NO₃).
  • We need to calculate the number of moles of the reacted Cu (32.0 g) using the relation:

<em>n = mass / molar mass</em>

  • The no. of moles of Cu = mass / atomic mass = (32.0 g) / (63.546 g/mol) = 0.503 mol.

<u><em>Using cross multiplication:</em></u>

2.0 moles of Cu produces → 1.0 mole of Zn, from the stichiometry.

0.503 mole of Cu produces → ??? mole of Zn.

  • The no. of moles of Zn produced = (1.0 mol)(0.503 mol) / (2.0 mol) = 0.2517 mol.

∴ The grams of Zn produced = no. of moles x atomic mass of Zn = (0.2517 mol)(65.38 g/mol) = 16.46 g.

3 0
3 years ago
The number of protons plus neutrons in the atom is called its?
yKpoI14uk [10]
This is the thing called the mass number of the thing
5 0
3 years ago
Read 2 more answers
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