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coldgirl [10]
3 years ago
9

17. An industrially important element contains

Chemistry
1 answer:
likoan [24]3 years ago
8 0

Answer:

Iron (Fe)

Explanation:

The number of electrons (-) is usually the same as the number of protons (+) in the atom of the element (unless it is an ion).

The element described has 26 electrons, so we can assume that it has 26 protons as well. The number of protons in an atom is the atomic number of element that the atom is.

Element 26 on the PTE is Iron (Fe), which does rust (oxidation) in air and water.

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Sergeeva-Olga [200]

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1) Carbon tetrabromide, CBr₄

The name of the compound describes the the chemical composition of the compound by

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The name of the compound describes the the chemical composition of the compound by

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3) Magnesium Nitrate Mn(NO₃)₂

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a) Making mention of the elements and groups in the compound, which are magnesium and bitrate group

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4 0
3 years ago
Dioxane, C4H8O2, has an enthalpy of fusion of 145.8 J g–1 and its melting point temperature is 11.0 °C. How much heat is require
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Answer:

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Quantity of heat (Q) = mass of dioxane × enthalpy of fusion

Mass of dioxane = 142g

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5 0
4 years ago
PLEASE HELP ME ASAP What is the volume of 28.9 g of mercury if the density is 13.8 g/mL? *
strojnjashka [21]

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2.09 mL

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density = mass/volume

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v = 2.09 mL

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3 years ago
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