What does N2O3 mean in science
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Related Questions
Mixtures can be either_____ (fixed composition) or_____ (variable composition)
How will the vapor pressure of an aqueous solution of sodium chloride compare to that of pure water?
Which element has an atom with the greatest attraction for electrons in a chemical bond? A) As B) Bi C) N D) P
A solution is made by completely dissolving 13.7 grams of potassium phosphate in 185.8 mL of water. What is the concentration of potassium in the solution?
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and Dt is the change in temp.
You'll have to solve this twice, once with the Cp in calories, and once with the Cp in joules.
1380.72 Joules
b. powder.
c. fluid.
d. metal.
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Answer:
The correct answer is the option:
c. fluid.
Explanation:
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Let's solve this!
A substance that can change its shape quickly is a fluid. Fluids have the property of adapting to the shape of the container that contains them. So you can easily change shape.
After the explanation, we conclude that the correct answer is the option:
c. fluid.
Fluids, like water for example, can quickly change shape and conform to their surroundings.
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Position 2
position1
position4
position3
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Answer: Position 1
Explanation:
Seasons on Earth occur due to tilt of of its axis. Earth's axis is tilted 23.5° from horizontal. Thus, when Earth moves in the orbit around sun, sometimes the northern hemisphere points towards the Sun and sometimes away. When it points towards the Sun, it experiences Summer season and while it points away, winter occurs. In between, spring and autumn occur.
Thus, from the given diagram, norther hemisphere would have summer time at position 1 when the northern hemisphere is facing the Sun.
Answer:
The correct answer is Position 1.
Explanation:
The rotational motion of the Earth causes some parts to receive more heat from the sun, while others receive less. Its axis of rotation runs vertically from the North Pole to the South Pole. Since this axis is not completely vertical, the sun's rays are projected with different intensity during the translation movement. Since the Earth is tilted slightly to the left and the axis points to the side where the Sun is at position 1, the sun's rays reach the northern hemisphere with more intensity and the southern hemisphere with less intensity.
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chemical symbols.
c.
numbers in front of molecules.
b.
subscripts after atoms.
d.
reactants in the product.
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Answer: Option (c) is the correct answer.
Explanation:
A chemical equation will be balanced when there are equal number of both reactants and products.
For example, is an unbalanced chemical equation.
As there are two molecules of Cl on reactant side and there is only one molecule of Cl present on product side.
Therefore, to balance this chemical equation we will place the numbers in front of molecules as follows.
Thus, we can conclude that a chemical equation is balanced by changing or adding numbers in front of molecules.
A chemical equation is balanced by changing or adding numbers in front of molecules. The correct answer is option c.
A chemical equation is a symbolic representation of a chemical reaction in which the reactant molecules are on the left side and the product molecules are on the right side, with an arrow separating them to indicate the direction of the reaction.
- Numbers in front of molecules are called coefficients, and they represent the number of molecules of each substance involved in the reaction. By changing the coefficients, you can balance the number of atoms on both sides of the equation.
Therefore, the correct answer is option c. numbers in front of molecules.
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(1) -153°C (3) +293°C
(2) -120.°C (4) +393°C
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Therefore, if we subtract 273, we get the temperature in degrees
120 - 273 = - 153
Therefore, the answer is (1), or -153 degrees Celsius
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Final answer:
The temperature 120 K converts to -153°C. This conversion is made by subtracting 273.15 from the Kelvin temperature.
Explanation:
To convert Kelvin (K) to Celsius (°C), you subtract 273.15 from the Kelvin temperature. For example, 120 K becomes 120 - 273.15, equaling -153.15°C. Rounded, this is approximately -153°C. It's essential to note that 0 K is absolute zero, representing the lowest possible temperature, which corresponds to -273.15°C on the Celsius scale. Therefore, the correct answer is (1) -153°C. This conversion is fundamental in relating temperatures on the Kelvin and Celsius scales, where Celsius measures temperature relative to the freezing and boiling points of water, and Kelvin starts from absolute zero, the absence of thermal energy.
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