Why would you say that Space Shuttles rather use hydrogen as its primary fuel source?

Q: • Draw an orbital diagram to depict the electron configuration of the magnesium ion, Mg²". 10. How…

A: Applying concept of electronic configuration and formula A=(w/V)×22.4

Q: Write the balanced equations by predicting the products of the following reactions. Include the…

A: The balanced chemical equation for the reaction between sodium and oxygen gas is shown below. The…

Q: What are lanthanide elements?

A: What are lanthanide ?

Q: Why Lanthanoides and actinoides are placed at the bottom of the periodic table?

A: The reason why lanthanoids and actinoids are found at the bottom of the periodic table has to be…

Q: Oxygen (8O) and argon (18A) are both gases. Oxygen combines readily with other elements, but argon…

A: Oxygen combines easily with other elements. But argon does not.

Q: Why does aluminum, which has less mass than magnesium, produce approximately the same amount of…

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Q: List and explain the unique characteristics of hydrogen?

A: Hydrogen element has different properties and characteristics in the whole periodic table. After…

Q: Some scientists have suggested that life on other planets in the universe may be based on silicon…

A: Given: Some scientists have suggested that life on other planets in the universe may be based on…

Q: What are Nitrogen Oxides?

A: What are nitrogen oxides has to be given.

Q: 3. Write equations for the reactions of Strontium hydride and radium peroxide with water. а. b.

A: 3.  a) • We need to write the reaction of strontium hydride with water.    • Since, we know that,…

Q: Why arsenic 3 is more toxic than arsenic 5? Relate its chemical structure.

A: Please find your solution below : Arsenic toxicity is a medical condition which occurs because of…

Q: Write the balanced equation for the synthesis of water. If we used 1.3 g of hydrogen with excess…

A: 2 molecules of hydrogen combined with one molecules of oxygen from 2 molecules of water.

Q: Give the three isotopes of hydrogen and their uses

A: Isotopes elements having same atomic number but different mass number

Q: 3. The Statue of Liberty consists of copper plates on an iron skeleton. The statue was recently…

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Q: How is Arsenic produced?

A: Arsenic is one of the naturally occurring element. It can be either organic or inorganic form.

Q: Why is nitrogen innert

A: Nitrogen (N) is an element with atomic number 7 which exists as dinitrogen gas (N2) at room…

Q: Molar Mass of a Metal Data:  Mass of metal ribbon: 0.045 g Mass of HCL used: 7 mL The volume of the…

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Q: Do you expect fluorine to be the strongest or weakest oxidizer among the halogen family? Which halid…

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Q: which one of the following is an ionization technique? MALDI or ESI

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Q: How’s would you explain to a friend what you have learned about why lead contamination happened in…

A: Presence of high levels of lead (Pb) is very much detrimental to health. It causes damage to the…

Q: What were two of the three reasons it took so long for lithium to be available for use in the United…

A: Lithium has its atomic symbol of Li. Its atomic number is 3. It is in the group of alkali metals. It…

Q: What is the interior layers of a mercury?

A: Mercury is a rocky planet with a huge iron core which makes up a large part of its interior.…

Q: OWLV2 | Online teaching and lea: X O Periodic Table Bb Intellectual and Industrial Revolu X…

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Q: A proposed two-step mechanism for the destruction of ozone in the upper atmosphere is a. What is the…

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Q: What does hydrogen have in common with the halogens?Explain.

A: The periodic table gives the tabular arrangement of elements arranged in increasing order of the…

Q: What is the name for WO3?

A: • We need to provide the name of WO3

Q: What charge would exist on chlorine (#17) after it reacts with hydrogen (#1)?

A: The correct option is(d) i.e partial negative. The electronegativity of H = 2.20  The…

Q: Part B A sample of N2 at STP with a volume of 55.1 mL contains 2.43x10-3 mol. What mass of Oscium,…

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Q: What is the electron configuration of Ar (argon)?

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Q: What percent of the earth's atmosphere is comprised of oxyger O 78.084% 42.732% 67.392%

A: Earth is the only planet in the solar system with an atmosphere that can sustain life. The blanket…

Q: Using your knowledge of alkali metals, halogen gases and the periodic table of elements, explain why…

A: The periodic table makes the study of the properties and the configuration of different sets of…

Q: can someone explain question 7？ Why As3- become a Ar？？？

A:

Q: What are the similarities and differences between the lanthanides and the main groups?

A: Groups 1, 2 and 13 to 18 constitute the main group. In both, Lanthanide's and main group , the ionic…

Q: Whether or not the process is observed in Nature, which of the following could account for the…

A: The transformation of carbon-10 to boron-10 occurs in two way:

Q: what are the interesting properties  of  phosphorus

A: The interesting properties of phosphorus has to be given.

Q: Q5: The percentage composition of fuel is carbon to hydrogen ratio is 18, H = 5% , O = 2%, S 0.4%, N…

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Q: From where is iodine obtained?

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Q: Can HCl be used in the place of sulfuric acid to synthesize Alum? Why or why not?

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Q: Describe hydrogen

A: Hydrogen is an first element of periodic table.

Q: What are the formation mechanisms for NOx emission?

A: NOx is a representation of the oxides of nitrogen like NO and NO2. They are formed when nitrogen and…

Q: What mass of mercury (in kg) would be produced by complete reaction of 10.0kg of HgS?

A: Answer:

Q: To produce 130 g of CeH12O6 , how many kJ of energy would you need based on the reaction above? Show…

A: 6 moles of CO2(g) reacts with 6 moles of H2O(l) using 2800 kJ of energy to produce 1 mole of C6H12O6…

Q: a) Why do oxygen atoms exist longer at 120-km altitude than at 50-km altitude?

A: At higher altitude oxygen atoms exists longer.