Chemistry, 29.12.2019 20:31, abbeygrace13
1. the following are statements about flames some of them are true while others are
false. a bracket is placed against each statement. put in the bracket a letter t for a
true statement and f for a false statemeni
i the carbon particles are formed when the gas is not completely burnt )
a solid or liquid must be change to gaseous state in order to make flame ( )
iii. a non- luminous bunsen flame produces has three visible regions( )
iv.
the luminous bunsen flame produces less soot than the non- luminous flame
vi.
vii.
a yellow bunsen flame is obtained when the air holes are opened ( )
the luminous bunsen flame is hotter than a non- luminous bunsen flame ( )
bunsen burner uses kerosene as a source of heat ()
1.
11
Answers: 1
Chemistry, 21.06.2019 17:10, codeyhatch142
Nitric oxide (no) can be formed from nitrogen, hydrogen and oxygen in two steps. in the first step, nitrogen and hydrogen react to form ammonia: n2(g) + 2 h_2(g) rightarrow 2 nh_3 (g) delta h = -92. kj in the second step, ammonia and oxygen react to form nitric oxide and water: 4 nh_3(g) + 5 o_2(g) rightarrow 4no(g) + 6 h_2o(g) delta h = -905. kj calculate the net change in enthalpy for the formation of one mole of nitric oxide from nitrogen, hydrogen and oxygen from these reactions. round your answer to the nearest .
Answers: 1
Chemistry, 21.06.2019 23:10, ChloeLiz7111
Nitrogen (n), phosphorus (p), and potassium (k) are the main nutrients in plant fertilizers. according to an industry convention, the numbers on the label refer to the mass percents of n, p2o5, and k2o, in that order. calculate the n: p: k ratio of a 30: 10: 10 fertilizer in terms of moles of each element, and express it as x: y: 1.0.
Answers: 1
Chemistry, 22.06.2019 14:00, IdkHowToDoMath
What term describes technology that operates on an atomic level
Answers: 2
1. the following are statements about flames some of them are true while others are
false. a b...
false. a b...
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