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4 years ago

Powdered iron is magnetic, but powdered sulfur is not. What occurs when they form a mixture in a beaker at room temperature ?

2 answers:

4 0

The iron will retain its magnetic properties it will still magnetic and sulfur will not gain the magnetic properties so t will not be magnetic

NeX [460]4 years ago

3 0

Answer:

Explanation:

The iron will retain its magnetic properties by still being magnetic, but the sulfur will not have the magnetic portion.

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HeLP PLeaSe SEND HElP AAAAAAAAAAAAA

nevsk [136]

Answer:

Correct answer is Li

Explanation:

Lithium reacts with chlorine to form Lithium chloride.

$2Li+Cl_{2} \to 2LiCl$

This is a redox (Oxidation -Reduction) reaction

$$2Li^{0} \to 2Li^{+2}+2e^{-}$ - Oxidation$Cl_{2}^{0}+2e^{-} \to 2Cl^{-}$ - Reduction$

Hence the reducing agent in this reaction is Li

4 0

4 years ago

Read 2 more answers

What units can NOT be derived from a balanced chemical equation-

elena-14-01-66 [18.8K]

Answer:

D) Volume of gas

E) Temperature

Explanation:

A balanced chemical equation can provide the following information :

The reactants and products through their symbols and formulae. The ratio of molecules of reactants and products. As molecular masses are expressed in unified mass (u), the relative masses of reactants and products are known from the equation.

7 0

3 years ago

A compound is composed of 58% copper, 12.79% nitrogen, and 29.21% oxygen. What is the empirical formula of the compound?

padilas [110]

Answer:

C47N9O18 is the empirical formula of this compound.

Explanation:

3 0

2 years ago

What type of reaction is nitrogen bromide?

Marat540 [252]

Nitrogen tribromide is a chemical compound with the formula NBr3. It is extremely ... NBr3 was first prepared by reaction of bistrimethlysilylbromamine (bis(trimethylsilyl) amine bromide) ..

5 0

3 years ago

A sample of argon gas (molar mass 40 g) is at four times the absolute temperature of a sample of hydrogen gas (molar mass 2 g).

katen-ka-za [31]

Answer:

Ratio of Vrms of argon to Vrms of hydrogen = 0.316 : 1

Explanation:

The root-mean-square speed measures the average speed of particles in a gas, and is given by the following formula:

Vrms = $\sqrt{3RT/M}$

where R is molar gas constant = 8.3145 J/K.mol, T is temperature in kelvin, M is molar mass of gas in Kg/mol

For argon, M = 40/1000 Kg/mol = 0.04 Kg/mol, T = 4T , R = R

Vrms = √(3 * R *4T)/0.04 = √300RT

For hydrogen; M = 1/1000 Kg/mol = 0.001 Kg/mol, T = T, R = R

Vrms = √(3 * R *T)/0.001 = √3000RT

Ratio of Vrms of argon to that of hydrogen = √300RT / √3000RT = 0.316

Ratio of Vrms of argon to that of hydrogen = 0.316 : 1

4 0

4 years ago