A yellow luminous flame is produced when an insufficient amount of oxygen is supplied. This flame should not be used when heating because it will coat glassware with black soot. What element is this made from? Answer with the correct elemental symbol. It will be case sensitive.
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Atoms of Ca and S would be expected to react in a ratio ofA) 1:1B) 1:2C)2:1D)3:1
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Which electrons are removed first when forming cations of Period 4 transition elements?
Bond the following atoms. Determine if they are ionic or covalent, circle your choice. Show the valence electrons and how they are either shared between the atoms or how they are transferred between atoms. Then write the chemical formula in the space provided.Ionic or covalentC ClFormula ____________ Ionic or covalentMg ClFormula _____________
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Final answer:
Group 16 elements, also known as chalcogens, commonly react with nonmetals to form compounds.
Explanation:
In chemistry, group 16 elements are known as the chalcogens. Chalcogens react with various groups of elements, including metals and nonmetals. However, their reactions with nonmetals are more common.For example, sulfur (group 16) readily reacts with most nonmetals to form compounds. The resulting compounds can vary depending on the specific nonmetal involved. Therefore, the group that would most likely react with group 16 to form a compound is the nonmetals group.
Learn more about Chalcogens and their reactions here:
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2 moles H₂ ------- 1 mole O₂
27.4 moles H₂ ---- ?
27.4 * 1 / 2 =
= 27.4 / 2
= 13.7 moles of O₂
hope this helps!
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Answer:
Explanation:
El peso equivalente del metal se calcula por regla de tres simple:
Answer:
El peso equivalente del metal es 1/20 g
Explanation:
Una muestra contiene 160 g de bromo y 2 g de hidrógeno. Otra muestra de bromuro metálico contiene 4 g de bromuro y 1 g de metal. Encuentra el peso equivalente del metal
Aquí tenemos la primera muestra que tiene la relación de bromo a hidrógeno de 160 g de bromo a 2 g de hidrógeno.
Eso es 160 g de bromo está presente con 2 g de hidrógeno
Dividiendo la combinación anterior por 160 para encontrar la cantidad de hidrógeno que se combina con 1 g de bromo, tenemos
(160 g) / 160 de bromo está presente con (2 g) / 160 de hidrógeno
1 g de bromo está presente con 1/80 g de hidrógeno
Por lo tanto, 4 g de bromo están presentes con 4/80 g de hidrógeno o tenemos;
4 g de bromo están presentes con 1/20 g de hidrógeno
Por lo tanto, el peso equivalente del metal = 1/20 g.
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Answer:
2) condensing of water vapor
Explanation:
Entropy is the measure of disorder in a system. Disorder means how "separated" and distanced the molecules, particles, etc. are from each other. Solids and crystals have rigid structures meaning that they have less disorder than gases and liquids that have free structures. Gases and liquids have a higher disorder than solids and crystalline structures. An increase in entropy means that the disorder is increasing; more heat and energy are being added. A decrease in entropy means that the disorder is decreasing and the structure becomes more rigid and ordered; less heat and energy are being added. So the condensing of water vapor means that disorder is decreasing, thus the entropy is decreasing.
I hope this makes sense :)
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Fusion reaction is a type of nuclear reaction where two or more nuclei combine or collide to form an element with a higher atomic number. This happens when the collision is in a very high speed. In this process, some of the matter of the fusing nuclei is converted to energy.
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Answer : The temperature on the Kelvin scale is, 373 K
Solution :
As temperature is given . Now we have to determine the temperature in Kelvin scale.
Formula used :
K = temperature in kelvin = ?
= temperature in degree Celsius =
Now put the value of 'K' in the above formula, we get the temperature in kelvin scale.
Therefore, the temperature on the Kelvin scale is, 373 K