What would be the effect on the observed melting point of sample were poorly packed?

What is the value of x in the equation below?

Colt1911 [192]

If the question includes x only than it’s value would be 1

8 0

4 years ago

Large amounts of energy are required to join two atom's nuclei into a single nucleus and, in turn, create a new element. What is

laila [671]

Answer: fusion

Explanation:

Nuclear fission : It is defined as a process which involves the conversion of a heavier nuclei (which is an unstable nuclei) into two or more small nuclei (which is a stable nuclei) along with release of high amounts of energy.

Example: The energy released from the process of nuclear fission which is converted into electrical energy that is used in our homes and factories.

Nuclear fusion : It is defined as a process which involves the conversion of two small nuclei to form a heavy nuclei along with release of energy.

Example: It occurs in sun and stars where the isotopes of hydrogen called as Tritium and Deuterium combine together to form a neutron and a helium atom.

4 0

3 years ago

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g Suppose 0.0350 g M g is reacted with 10.00 mL of 6 M H C l to produce aqueous magnesium chloride and hydrogen gas. M g ( s ) +

iren2701 [21]

Answer:

Mg will be the limiting reagent.

Explanation:

The balanced reaction is:

Mg + 2 HCl → MgCl₂ + H₂

By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:

Mg: 1 mole
HCl: 2 moles
MgCl₂: 1 mole
H₂: 1 mole

Being the molar mass of each compound:

Mg: 24.3 g/mole
HCl: 36.45 g/mole
MgCl₂: 95.2 g/mole
H₂: 2 g/mole

By reaction stoichiometry, the following mass quantities of each compound participate in the reaction:

Mg: 1 mole* 24.3 g/mole= 24.3 g
HCl: 2 moles* 36.45 g/mole= 72.9 g
MgCl₂: 1 mole* 95.2 g/mole= 95.2 g
H₂: 1 mole* 2 g/mole= 2 g

0.0350 g of Mg is reacted with 10.00 mL (equal to 0.01 L) of 6 M HCl.

Molarity being the number of moles of solute that are dissolved in a certain volume, expressed as:

$Molarity=\frac{number of moles of solute}{volume}$

in units $\frac{moles}{liter}$

then, the number of moles of HCl that react is:

$6 M=\frac{number of moles of HCl}{0.01 L}$

number of moles of HCl= 6 M*0.01 L

number of moles of HCl= 0.06 moles

Then you can apply the following rule of three: if by stoichiometry 2 moles of HCl react with 24.3 grams of Mg, 0.06 moles of HCl react with how much mass of Mg?

$mass of Mg=\frac{0.06 moles of HCl* 24.3 grams of Mg}{2 moles of HCl}$

mass of Mg= 0.729 grams

But 0.729 grams of Mg are not available, 0.0350 grams are available. Since you have less mass than you need to react with 0.06 moles of HCl, <u><em>Mg will be the limiting reagent.</em></u>

7 0

3 years ago

How many moles of SnF2 will be produced along with 48 grams of H2

wolverine [178]

Answer:

24 moles

Explanation:

given data

$H_2$ = 48 grams

to find out

how many moles of $SnF_2$ will be produced

solution

we know that Stoichiometry is here as

$Sn+2HF\rightarrow SnF_2+H_2$ ......................1

so we get here mole of solute $H_2$ that is express as

mole = $\frac{\text{given mass}}{\text{Molar Mass}}$ ..........................2

put here value for $H_2$

mole = $\frac{48}{2}$

mole of $H_2$ = 24 mole

and

we can say that here as per equation 1 that one mole of $H_2$ is go with one mole of $SnF_2$

so here $H_2$ 24 mole is go with 24 moles mole of $SnF_2$

so we can say $SnF_2$ will be produced 24 moles

5 0

3 years ago

Which statement best describes balancing equations and the law of conservation of mass?

max2010maxim [7]

Answer:

The number of atoms is the same in the reactants and in the products, and the total mass is the same in the reactants and in

the products

Explanation:

For an equation to termed balance, the number of atoms of elements in the reactants must be equal to the number of atoms of the same element in the product.

The law of conservation of mass states that matter can neither be created nor destroyed during a chemical reaction but changes from one form to another. An unbalanced equation simply means that matter have been created or destroyed. This implies that balancing equation supports the laws of conservation of mass

6 0

3 years ago

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