Consider the following intermediate chemical equations.
2h2(g) + o2(g) → 2h2o(1)
h2(g)+f2(g) → 2hf(g)
in the final chemical equation, hf and o2 are the products that are formed through the reaction between h20 and f2. before
you can add these intermediate chemical equations, you need to alter them by multiplying the
second equation by 2 and reversing the first equation.
first equation by 2 and reversing it.
first equation by (1/2) and reversing the second equation.
second equation by 2 and reversing it.
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qualitative observation deals with data that can be observed with our senses: sight, smell, touch, taste, and hearing. they do not involve measurements or numbers. for instance, colors, shapes, and textures of objects are all qualitative observations.

a chemical change results in a new substance being formed; whereas a physical change will result in a different state of matter

explanation:

35. a insulated cylinder of solid gold (k 310 kw/m-k) of radius v2 m and height 5 m is heated at one end until the temperature at each point in the cylinder is given by w(r, y, z) (30 z2)(2-(r2+ y2). determine the rate of heat flow across each horizontal disk given by z 1, z 2, and z 3, identifying which has the greatest rate of heat flow across it.

explanation: