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jekas [21]
3 years ago
13

Witch one is bigger 25yd or 75ft

Chemistry
2 answers:
Aleonysh [2.5K]3 years ago
4 0

Answer: in 25 yards there is 75 feet. Witch is the same to say that 25 yards is 75 feet.

Explanation:

bixtya [17]3 years ago
3 0

Answer:

25yd is bigger

Explanation:

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Given the balanced equation below, calculate the moles of aluminum that are needed to react completely with 28.7 moles of FeO. Y
Alexxx [7]

Answer:

43.05 moles of Al needed to react with 28.7 moles of FeO.

Explanation:

Given data:

Moles of FeO = 28.7 mol

Moles of Al needed to react with FeO = ?

Solution:

Chemical equation:

2Al + 3FeO → 3Fe + Al₂O₃

Now we will compare the moles of Al with FeO.

                            FeO        :           Al

                             2            :            3

                          28.7          :         3/2×28.7 = 43.05 mol

Thus 43.05 moles of Al needed to react with 28.7 moles of FeO.

8 0
3 years ago
How does 0.5 m sucrose (molecular mass 342) solution compare to 0.5 m glucose (molecular mass 180) solution?
mash [69]

Answer : Both solutions contain 3.011 X 10^{23} molecules.

Explanation : The number of molecules of 0.5 M of sucrose is equal to the number of molecules in 0.5 M of glucose. Both solutions contain 3.011 x 10^{23} molecules.

Avogadro's Number is  N_{A} =  6.022 X 10^{23} which represents particles per mole and particles may be typically molecules, atoms, ions, electrons, etc.

Here, only molarity values are given; where molarity is a measurement of concentration in terms of moles of the solute per liter of solvent.

Since each substance has the same concentration, 0.5 M, each will have the same number of molecules present per liter of solution.

Addition of molar mass for individual substance is not needed. As if both are considered in 1 Liter they would have same moles which is 0.5.

We can calculate the number of molecules for each;

Number of molecules  = N_{A} X M;

∴  Number of molecules =  6.022 X 10^{23} X 0.5 mol/L X 1 L which will be  = 3.011 X 10^{23}

Thus, these solutions compare to each other in that they have not only the same concentration, but they will have the same number of solvated sugar molecules. But the mass of glucose dissolved will be less than the mass of sucrose.

7 0
3 years ago
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You suspect one of the products of a single replacement is hydrogen gas. How might you experimentally confirm your prediction? C
Nataly_w [17]
The best option i think is b would be my best answer
6 0
3 years ago
What are atoms? Types of atoms?
shtirl [24]

Answer:

The definition of atom: The Atom is the basic unit of matter.

Types of atoms: There are 3 types of atoms, protons, neutrons, and electrons.

6 0
3 years ago
A store has notebooks worth<br>$1.60. The store adds a<br>30% markup. How much is<br>the markup?​
Hoochie [10]

Answer: $0.48

Explanation: $1.60×0.30= 0.48

6 0
3 years ago
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