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4 years ago

Suppose we have the following pizza recipe:

Chemistry

1 answer:

Dmitriy789 [7]4 years ago

7 0

Answer:

we required 15 ounce tomato sauce for 3 pizza

Explanation:

Given data:

Crust = 4

Cheese = 10 cups

number of ounces of tomato sauce for 3 pizza = ?

Solution:

Recipe and ingredients for one pizza:

1 crust + 5 ounce tomato sauce + 2 cups cheese → 1 pizza

Ingredients required for 3 pizza;

1 × 3 crust + 5 ×3 ounce tomato sauce + 2×3 cups cheese → 3 pizaa

3 crust + 15 ounce tomato sauce + 6 cups cheese → 3 pizaa

So we required 15 ounce tomato sauce for 3 pizza.

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Which transition is associated with an emission of energy?

Fantom [35]

Answer:

n = 4 to n = 7

Explanation:

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3 years ago

A hydrocarbon sample was burned in a bomb calorimeter. The temperature of the calorimeter and the 1.00 kg of water rose from 20.

fomenos

Answer:

The heat released by the combustion is 20,47 kJ

Explanation:

Bomb calorimeter is an instrument used to measure the heat of a reaction. The formula is:

Q = C×m×ΔT + Cc×ΔT

Where:

Q is the heat released

C is specific heat of water (4,186kJ/kg°C)

m is mass of water (1,00kg)

ΔT is temperature change (23,65°C - 20,45°C)

And Cc is heat capacity of the calorimeter (2,21kJ/°C)

Replacing these values the heat released by the combustion is:

6 0

3 years ago

On hot days, you may have noticed that potato chip bags seem to “inflate”, even though they have not been opened. If I have a 25

Taya2010 [7]

The new volume of the bag : 747.43 ml

<h3>Further explanation</h3>

Charles's Law

When the gas pressure is kept constant, the gas volume is proportional to the temperature

$\tt \dfrac{V_1}{T_1}=\dfrac{V_2}{T_2}$

V₁=250 ml

T₁=19+273=292 K

T₂=600+273=873 K

$\tt V_2=\dfrac{V_1.T_2}{T_1}\\\\V_2=\dfrac{250\times 873}{292}\\\\V_2=747.43~ml$

7 0

3 years ago

Complete and balance the reaction in acidic solution. equation: ZnS + NO_{3}^{-} -> Zn^{2+} + S + NO ZnS+NO−3⟶Zn2++S+NO Which

kotykmax [81]

Answer:

Balanced reaction: $3ZnS+2NO_{3}^{-}+8H^{+}\rightarrow 3Zn^{2+}+3S+2NO+4H_{2}O$

S is oxidized and N is reduced.

$NO_{3}^{-}$ is the oxidizing agent and ZnS is the reducing agent.

Explanation:

Reaction: $ZnS+NO_{3}^{-}\rightarrow Zn^{2+}+S+NO$

$\Rightarrow$ Oxidation: $ZnS\rightarrow Zn^{2+}+S$

Balance charge: $ZnS-2e^{-}\rightarrow Zn^{2+}+S$ ...............(1)

$\Rightarrow$ Reduction: $NO_{3}^{-}\rightarrow NO$

Balance H and O in acidic medium : $NO_{3}^{-}+4H^{+}\rightarrow NO+2H_{2}O$

Balance charge: $NO_{3}^{-}+4H^{+}+3e^{-}\rightarrow NO+2H_{2}O$ ...............(2)

[ $3\times$ Equation-(1)] + [ $2\times$ Equation-(2)]:

$3ZnS+2NO_{3}^{-}+8H^{+}\rightarrow 3Zn^{2+}+3S+2NO+4H_{2}O$

Oxidation number of S increases from (-2) to (0) for the conversion of ZnS to S. Therefore S is oxidized.

Oxidation number of N decreases from (+5) to (+2) for the conversion of $NO_{3}^{-}$ to NO. Therefore N is reduced.

$NO_{3}^{-}$ consumes electron from ZnS. Therefore $NO_{3}^{-}$ is the oxidizing agent and ZnS is the reducing agent.

7 0

4 years ago

These organs make urine by removing waste and water from the blood. What organs are shown in the picturehese organs make urine b

Orlov [11]

Answer:

kidneys i think

Explanation:

because

3 0

3 years ago