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diamong [38]
3 years ago
14

The use of thermite for welding produces an

Chemistry
1 answer:
Sveta_85 [38]3 years ago
8 0

Answer:

C. grinding the reactants into finer grains

Explanation: I just took the assignment.

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For the reaction of hydrogen with iodine
fenix001 [56]

Answer:

r_{H_2} = \frac{-1}{2} r_{HI}

Explanation:

Hello!

In this case, considering the given chemical reaction:

H_2(g) + I_2(g) \rightarrow 2HI(g)

Thus, by applying the law of rate proportions, we can write:

\frac{1}{-1} r_{H_2} = \frac{1}{-1}r_{i_2} = \frac{1}{2} r_{HI}

Whereas the stoichiometric coefficients of reactants are negative due their disappearance and that of the product is positive due to its appearance. In such a way, when we relate the rate of disappearance of hydrogen gas to the rate of formation of hydrogen iodide, we obtain:

r_{H_2} = \frac{-1}{2} r_{HI}

Best regards!

8 0
2 years ago
Answer questions based on the lab activity.
Alika [10]

Answer:

Conduction, Convection and Conduction

Explanation:

8 0
3 years ago
Cutting a piece of paper in half proves that solids have no definite shape.<br><br> True or False?
erma4kov [3.2K]
False. Solids have a definite shape and volume. Cutting a paper (solid) in half will alter the shape of the original solid and give it a new shape and volume instead. A solid will always have a definite shape. If not, it's not a solid.
8 0
3 years ago
3
atroni [7]

Answer:

(1) atomic numbers

Explanation:

The observed regularities in the properties of the elements on the periodic table are periodic functions of their atomic numbers.

  • Atomic number is the number of protons in an atom.
  • The periodic law states that "the properties of elements are a periodic function of their atomic number".
  • Elements on the periodic table are arranged based on the atomic numbers they contain.
  • The number of positively charged particles in an atom is the atomic number.
6 0
3 years ago
Can someone please help me and don’t answer if you don’t know the answer please<br> thank you :)
o-na [289]
Combustion means the burning of something. So in the given question, you could say, “In this question, combustion means the burning of methane”.
8 0
3 years ago
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