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Lapatulllka [165]
3 years ago
9

A truckload of apples weighs 2550 lbs. If 5 (exact) apples weigh 1250 g, how many apples are in the truck?

Chemistry
1 answer:
egoroff_w [7]3 years ago
3 0

Answer:

There are 4,626 apples in the truck.

Explanation:

Mass of  5 apples = 1250

Mass of an apple = \frac{1250 g}{5}=250 g

Mass of apples in the truck = 2550 lbs

1 lbs = 453.592 g

2550 lbs=2550\times 453.592 g

Let the number of apples with mass of 2550 lbs be a.

a\times 250 g=2550\times 453.592 g

a=\frac{2550\times 453.592 g}{250 g}=4,626.63

4,626.63 ≈ 4,626

So, there are 4,626 apples in the truck.

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What is 0.000028474 in scientific notation
antiseptic1488 [7]

Answer:

2.8474 \:  \times  \:  {10}^{ - 5}

this the solution

6 0
3 years ago
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The balanced equation for combustion in an acetylene torch is shown below:
vichka [17]

Answer:

70mol

Explanation:

The equation of the reaction is given as:

                  2C₂H₂ + 5O₂ → 4CO₂ + 2H₂O

Given parameters:

Number of moles of acetylene = 35.0mol

Number of moles of oxygen in the tank = 84.0mol

Unknown:

Number of moles of CO₂ produced = 35.0mol

Solution:

From the information given about the reaction, we know that the reactant that limits this combustion process is acetylene. Oxygen is given in excess and we don't know the number of moles of this gas that was used up. We know for sure that all the moles of acetylene provided was used to furnish the burning procedure.

To determine the number of moles of CO₂ produced, we use the stoichiometric relationship between the known acetylene and the CO₂ produced from the balanced chemical equation:

From the equation:

         2 moles of acetylene produced 4 moles of CO₂

          ∴ 35.0 mol of acetylene would produced:  

                               \frac{35 x 4}{2} = 70mol

6 0
3 years ago
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How Many Atoms Are In 356.13 Grams Of Sn
s344n2d4d5 [400]

<span>There are three atoms of Sn (Stannous or Tin) in</span> 356.13 g of Sn.

<span>One atom of Sn has the atomic mass (m</span>ₐ<span>) of </span>118,71u which means:

356.13/118.71=3 atoms of Sn

The mass number (symbol A) also called atomic mass number or nucleon number is the total number of protons and neutrons in an atomic nucleus. It determines the atomic mass of atoms and it is in the periodic table.

8 0
3 years ago
1. write the complete chemical symbol for the ion with 14 protons 15 neutrons and 18 electrons
motikmotik

Answer:

1.   Si^{-4}

2.  Co^{+2}

Explanation:

An ion is formed when an atom that is said to be neutral gains or losses electrons.

It is thought that a negative ion (anion) is produced as it gains electrons and a positive ion (cation) is formed when it loses an electron.

Atomic number is the total number of protons and electrons in a neutral atom.

From the information

Protons = 14

electron = 18

Net Charge = no of proton - no of electron

= 14 - 18 = -4

Mass number = 14 + 15 = 29

Thus, the chemical symbol = Si^{-4}

For ion with 27 proton, 32 neutrons and 25 electrons

Net charge = 27 - 25 = +2

Mass number = 27 + 32 = 59

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6 0
3 years ago
The question is below
rodikova [14]
The anode is the electrode where the oxidation occurs.

Cathode is the electrode where the reducction occurs.

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Answer: 2.72 V

3 0
3 years ago
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