How should the baking of a pizza be categorized
Answers
The baking of a Pizza be Categorize as Endothermic Process
The baking of a pizza should be categorized as an endothermic process because the dough absorbs heat. An endothermic process is a method that absorbs energy from its surroundings which is habitually in the form of energy.
It can be a biochemical process like solving the salt in water or just the melting of ice. Therefore, the dough absorbs heat and it is categorized as an endothermic process.
Answer:
The correct answer is endothermic process.
Explanation:
An endothermic process is one in which the system absorbs heat from the environment. In the pizza baking process, the dough absorbs the heat from the oven. The flow of heat goes from the oven to the pizza. In this case, it is about thermal energy, if the temperature of a body increases, the thermal energy of the body also does it.
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Related Questions
A student investigated the rate of reaction between sodium thiosulphate and dilute hydrochloric acid the student placed a conical flask over a cross on a piece of paperthe student mixed the solutions in the flask the solution went cloudy the student timed how long it took until the cross could not be seenthe equation for the reaction is :Na2 S2O3(aq) + 2HCl(aq) = 2NaCl(aq) + H2O(l) + SO2(g) + S(s)explain why the solution goes cloudy
Look at the equation below.O2 + CS2 → CO2 + SO2Which of the following shows the equation balanced?A. 3 O2 + CS2 → CO2 + 2 SO2B. 3 O2 + CS2 → 2 CO2 + SO2C. O2 + CS2 → CO2 + SO2D. 4 O2 + 4 CS2 → 4 CO2 + 4 SO2
What is a system and how is it used
Add 92.2 km to 9426 m and report the answer inkm.92.2 km + 9426 m =kmHelp me plz
liquids are incompressible
pressure is transmitted equally throughout a liquid
gases are incompressible
pressure and force are the same thing
Answers
Answer;
- Liquids are incompressible
- Pressure is transmitted equally throughout a liquid
Explanation;
-Hydraulic systems works on the idea that, unlike gasses, liquids cannot be compressed. Therefore, a system that transfers pressure through liquid to aid in the lifting of an object can be created.
-Force that is applied at one point is transmitted to another point using an incompressible fluid. This force is created on the piston which generates or creates a pressure that will be transmitted equally to all parts of the system, then to the load and this pressure creates a force that will lift the load on the load piston.
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In chemistry and phase equilibria, phase transition is a common phenomenon. There are many terms related to the phase transition. The process deposition is a physical process. This process is the opposite of sublimation.
Deposition is a phase transfer or phase transition process in which a substance in the gaseous state changes directly to the solid state. Freezing of air is an example of deposition in which the water vapour directly changes to ice.
Here the gaseous state converts into solid state without being in the liquid state.
An example is:
CO₂ (g) → CO₂ (s)
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Answers
The total number of moles of atoms in Pb(C₂H₃O₂)₂ is 66.242 x 10²³ atoms.
What is mole?
The total number of moles of atoms, use Avogadro's number, which is approximately 6.022 x 10²³ particles (atoms or molecules) per mole.
The molecular formula of Pb(C₂H₃O₂)₂ has one lead (Pb) atom, two carbon (C) atoms, four hydrogen (H) atoms, and four oxygen (O) atoms in one molecule of the compound.
So, the total number of moles of atoms in one mole of Pb(C₂H₃O₂)₂ can be calculated as follows:
1 Pb atom x (1 mole Pb / 1 mole Pb(C₂H₃O₂)₂ x (6.022 x 10²³ atoms / 1 mole Pb) = 6.022 x 10²³ Pb atoms
2 C atoms x (1 mole C / 1 molePb(C₂H₃O₂)₂ x (6.022 x 10²³ atoms / 1 mole C) = 12.044 x 10²³ C atoms
4 H atoms x (1 mole H / 1 mole Pb(C₂H₃O₂)₂ x (6.022 x 10²³ atoms / 1 mole H) = 24.088 x 10²³ H atoms
4 O atoms x (1 mole O / 1 mole Pb(C₂H₃O₂)₂ x (6.022 x 10²³ atoms / 1 mole O) = 24.088 x 1023 O atoms.
6.022 x 10²³ Pb atoms + 12.044 x 10² C atoms + 24.088 x 10²³ H atoms + 24.088 x 10²³ O atoms = 66.242 x 10²³ atoms
Therefore, there are approximately 66.242 x 10²³ atoms in one mole of Pb(C₂H₃O₂)₂.
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Answers
Answer:
A chemical reaction is usually accompanied by easily observed physical effects, such as the emission of heat and light, the formation of a precipitate, the evolution of gas, or a color change
Answers
Answer:
$182 is the value of the gold in the coin
Explanation:
Diameter is 2r, the ratio of the coin is = 1.62cm / 2 = 0.81cm
Following the formula of the volume of the coin:
V = π r² h
V = π*(0.81cm)²*0.085cm
V = 0.172cm³ = mL
As the density of the gold is 19.32g/mL, the mass of 0.1752mL of gold is:
0.1752mL * (19.32g / mL) =
3.385g is the mass of the coin
As the price of the gold is $53.90 / g, the value of the gold in the coin is:
3.385g * ($53.90 / g) =
$182 is the value of the gold in the coin
Final answer:
To find the value of the gold in the coin, calculate its volume using the formula for the volume of a cylinder. The value of gold in the coin is $185.37.
Explanation:
To calculate the value of gold in the coin, we need to find its volume first using the formula for volume of a cylinder:
The radius (r) of the coin is half its diameter, so it is 0.81 cm. The height (h) is 0.085 cm. Plugging in these values, we can find the volume of the coin. Next, we calculate the mass of the gold in the coin using its density and the volume we just calculated. Finally, we multiply the mass by the price per gram of gold to find the value of the gold in the coin.
The volume of the coin is:
= 0.178 cm3.
The mass of the gold is:
m = density x volume
= 19.32 x 0.178
= 3.443 g.
The value of the gold in the coin is the value as -
= mass x price per gram
= 3.443 g x $53.90/g
= $185.37.
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B. Carbon dioxide
C. Nitrogen
D. Hydrogen
Answers
Answer is: C. nitrogen.
Together, nitrogen (N₂) and oxygen (O₂) by volume account for 99.03% volume of the gases composing the dry air in the lower atmosphere.
Volume of nitrogen in air is 78.08%.
Volume of oxygen in air is 20.95%.
Together: 78.08% + 20.95% = 99.03%.
This gases can be separated by fractional distillation of liquefied air.