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3 years ago

If two poisonous elements are combined chemically, which of the following will be true of the resulting compound?

Chemistry

2 answers:

ira [324]3 years ago

8 0

C, The compound may or may not be poisonous, depending on the chemical properties of the new substance.

andrew11 [14]3 years ago

4 0

the compound would not be poisonous because of the properties of the two compounds

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A student obtains a mixture of the chlorides of two unknown metals, X and Z. The percent by mass of X and the percent by mass of

Aleksandr-060686 [28]

Answer: The additional information that is helpful in calculating the mole percent of XCl(s) and ZCl(s) is the molar masses of Z and X

Explanation:

To calculate the mole percent of a substance, we use the equation:

$\text{Mole percent of a substance}=\frac{\text{Moles of a substance}}{\text{Total moles}}\times 100$

Mass percent means that the mass of a substance is present in 100 grams of mixture

To calculate the number of moles, we use the equation:

$\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}$

We require the molar masses of Z and X to calculate the mole percent of Z and X respectively

Hence, the additional information that is helpful in calculating the mole percent of XCl(s) and ZCl(s) is the molar masses of Z and X

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Leno4ka [110]

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mafiozo [28]

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