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Alika [10]
11 months ago
13

Based on the image below, which item is your limiting reactant?(A) Ice cream scoopB) Cone(C) Cherry

Chemistry
1 answer:
liubo4ka [24]11 months ago
4 0

According to the image, we can say that to form an ice cream unit you need 1 scoop of ice cream, 1 cone, and 1 cherry. In other words, the ratio between all the reactants is 1 to 1. Therefore, the limiting reactant will be the one with the least number of units.

If we count the amount of each of the reactants we have:

• 10 scoops of ice cream

,

• 7 cones

,

• 12 cherries

In less quantity are the cones, that is to say, that at most we can assemble 7 ice creams. Therefore, the limiting reactant will be the cone.

Answer: (B) Cone

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Explanation:

B. Recycles slowly

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A particular radioactive nuclide has a half-life of 1000 years. What percentage of an initial population of this nuclide has dec
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Answer:

91.16% has decayed & 8.84% remains

Explanation:

A = A₀e⁻ᵏᵗ => ln(A/A₀) = ln(e⁻ᵏᵗ) => lnA - lnA₀ = -kt => lnA = lnA₀ - kt

Rate Constant (k) = 0.693/half-life = 0.693/10³yrs = 6.93 x 10ˉ⁴yrsˉ¹

Time (t) = 1000yrs  

A = fraction of nuclide remaining after 1000yrs

A₀ = original amount of nuclide = 1.00 (= 100%)  

lnA = lnA₀ - kt

lnA = ln(1) – (6.93 x 10ˉ⁴yrsˉ¹)(3500yrs) = -2.426

A = eˉ²∙⁴²⁶ = 0.0884 = fraction of nuclide remaining after 3500 years

Amount of nuclide decayed = 1 – 0.0884 = 0.9116 or 91.16% has decayed.

3 0
3 years ago
The pictures to the right, show two different models of the atom. Type in the letter of your answer. Which model best represents
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Just did it on Edgenuity.

6 0
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According to the following reaction, how many grams of hydrogen
Mila [183]

Answer:

7.03 g

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Step 2: Calculate the moles corresponding to 32.5 g of N₂

The molar mass of N₂ is 28.01 g/mol.

32.5 g × 1 mol/28.01 g = 1.16 mol

Step 3: Calculate the number of moles of H₂ needed to react with 1.16 moles of N₂

The molar ratio of N₂ to H₂ is 1:3. The moles of H₂ needed are 3/1 × 1.16 mol = 3.48 mol.

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8 0
3 years ago
Hydrogen bonds form between neighboring water molecules because of:
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*A & B*

Answers A & B are not possible, as Hydrogen “bonds” are intermolecular forces and do not actually involve transfer or sharing of electrons.

*C & D*

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*E*

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