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aliina [53]
3 years ago
10

Can anyone please suggest me a good and easy project topic for physics and chemistry. For class nine or ten students.Please plea

se please help me.​
Chemistry
1 answer:
dolphi86 [110]3 years ago
8 0
Volcano , bleach and fabuloso , flour and soap
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Which statement best describes the formula equation Cl2(g) + 2KBr(aq) mc014-1.jpg 2KCl(aq)+ Br2(l)?
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The statement that describes the chemical reaction is D chlorine gas reacts with potassium bromide to form potassium chloride in solution and liquid bromide<span>. The symbol "Cl" represents chlorine. The symbols in the brackets show the physical state of the substance, (g) is gaseous, (s) is solid, (aq) is aqueous and (l) is liquid.</span>
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3 years ago
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Which of the following is NOT a fate for pyruvate?
son4ous [18]

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Explanation:

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3 years ago
What is the electron configuration of a ground-state Nb2+ ion? Select one: a. 1s22s22p63s23p64s23d104p65s24d1 b. 1s22s22p63s23p6
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[Kr]4d3
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5 0
3 years ago
Which statement about entropy is correct? - Entropy is sometimes described as the degree of randomness in a system. - solids are
marysya [2.9K]

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2 years ago
How many hydrogen atoms are in 4.40 mol of ammonium sulfide
katrin2010 [14]
 The number  of hydrogen  atoms  that are  in 4.40  mol  of ammonium sulfide is  2.12 x10^25  atoms

      calculation
 find the number of moles  of Hydrogen  in ammonium sulfide  (NH4)2S

that is  4.40  x  number of hydrogen atoms in (NH4)2S ( 4x2= 8  atoms)

moles is  therefore=  4.40  x8= 35.2  moles

by  use of  Avogadro's law  constant

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by  cross multiplication
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5 0
3 years ago
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