what are some chemical properties of lead besides it’s melting and boiling points

Answer:

Explanation:

D. solvent

Answer:

a solution

Explanation:

Verified test check.

Answer:

This is something you have to do yourself. The teacher is even letting you have a partner. Nobody is going to do this project for you because it´s your responsibility to finish it on your own.

Explanation:

Answer:

Saturn

Explanation:

Mercury, Venus, and Mars are all inside the asteroid belt. Saturn is outside the asteroid belt along with Jupiter, Neptune, Uranus, and if you count, Pluto

The balanced for the reaction is:

2KI + Pb(NO₃)₂ → Pbl₂ + 2KNO₃

When the equation is balanced, the number of atoms for each element on both the reactant and product sides of the equation are equal. This can be seen below:

      Reactant   Product

K         2                 2

I          2                  2

Pb      1                    1

N       2                   2

O       6                  6

fire in a circle

Explanation:

bc

Answer:

Option D

Explanation:

Solubility is the amount of a substance in a solvent that dissolves at a specific temperature. So knowing this you would know that generally when you increase the temperature it also increases the solubility of a substance which means the answer is option D or "Solubility generally increases with heat.​"

Hope this helps.

Answer:

D.) Solubility generally increases with heat

Explanation:

I got it correct on founders edtell

Percentage by weight of the NaNO₃, is given by the ratio of the mass of NaNO₃ to the mass of the sample

The percentage by weight of NaNO₃ in the sample is approximately 30.713 %

Reason:

Given parameters are;

Mass of sample of NaBr, NaI, and NaNO₃ mixture = 0.8612 g

Mass of AgNO₃ and AgI formed = 1.0186

Mass of AgCl formed = 0.7125

Required:

Percentage by weight of NaNO₃ in the sample

Solution:

Let A represent NaBr, let B represent NaI, and let C represent NaNO₃, we have;

Equation 1 A + B + C = 0.8612

The addition of AgNO₃, precipitates 1.0186 g mixture of AgBr and AgI, therefore, we have;

[tex]A \cdot\left(\dfrac{Molar \ mass \ of \ AgBr}{Molar \ mass \ of \ NaBr} \right) + B \cdot \left(\dfrac{Molar \ mass \ of \ AgI}{Molar \ mass \ of \ NaI} \right) = 1.0186[/tex]

Molar mass of AgBr = 187.77 g/mol

Molar mass of NaBr = 102.894 g/mol

Molar mass of AgI = 234.77 g/mol

Molar mass of NaI = 149.89 g/mol

Which gives;

Equation 2 [tex]A \cdot\left(\dfrac{187.77}{102.894} \right) + B \cdot \left(\dfrac{234.77}{149.89} \right) = 1.0186[/tex]

The forming of the precipitate by passing the compounds through a stream of chlorine gives;

[tex]A \cdot\left(\dfrac{Molar \ mass \ of \ AgCl}{Molar \ mass \ of \ NaBr} \right) + B \cdot \left(\dfrac{Molar \ mass \ of \ AgCl}{Molar \ mass \ of \ NaI} \right) = 0.7125[/tex]

Molar mass of AgCl = 143.32 g/mol

Therefore, we get;

Equation 3 [tex]A \cdot\left(\dfrac{143.32}{102.894} \right) + B \cdot \left(\dfrac{143.32}{149.89} \right) = 0.7125[/tex]

Solving equation (2), and (3) gives;

A ≈ 0.3252 g, B ≈ 0.2715 g

Plugging in the values of A, and B in equation (1), gives;

0.3252 + 0.2715 + C = 0.8612

C = 0.8612 - (0.3252 + 0.2715) ≈ 0.2645

The mass of NaNO₃ in the mixture, C ≈ 0.2645

[tex]The \ percent \ by \ weight \ of \ NaNO_3 = \dfrac{0.2645}{0.8612} \times 100 \approx \underline{30.713 \%}[/tex]

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Answer:

C. negative global warming

Answer:

The abundance of X-100 is 75 percent, and X-104 has an abundance of 25 percent. The answers are found by solving two equations with two unknowns, which are A plus B equals 100, and 100A plus 104B equals 10,100.

The relative abundance of each isotope in nature

X-100 = 75%

X-104=25%

By dividing the total number of ions identified by the number of ions with a particular m/z m/z m/z ratio, one may determine the relative abundance for each individual ion in the sample.

How can the abundance of two isotopes be determined?

For chemistry problems involving relative abundance, use the following formula:

(M1)(x) + (M2)(1-x) = M (E)

Find the relative abundance of the isotopes if one nitrogen isotope, nitrogen-14, has a mass of 14.003 amu and another, nitrogen-15, has a mass of 15.000 amu.

Algebra can be used to find x. ...

x = 0.996

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Answer:

5000mm

Explanation:

10mm makes 1 cm

so if we compare them:

10mm-->1cm

x -->500cm

now cross multiply:

1x-->5000

divide both sides by 1 for x to be alone

therefore we get x=5000

Answer:

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

[tex]n = \frac{N}{L} \\[/tex]

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

[tex]n = \frac{8.94 \times {10}^{24} }{6.02 \times {10}^{23} } \\ = 14.850498[/tex]

We have the final answer as

Hope this helps you

Answer:

One Lone Pair. (I think)

Explanation:

Answer:

The answer is B. False

Explanation:

Answer:

gctcuv

Explanation:

jygciutvguv

Explanation:

more predators, less deers. also starvation, and diseases.

Answer:

heat energy

Explanation:

heat give energy so heat carriers energy

Answer:

B) mitochondria

Explanation:

Answer:

12 atoms of carbon

Explanation:

(6.023X10^23)/12 atoms of Carbon.

There are 0.42 moles of carbon atoms in 5g of carbon.

no. of moles = mass (g) ÷ molar mass (g/mol)

No. of moles = 5g ÷ 12g/mol

No. of moles = 0.42moles

Therefore, there are 0.42 moles of carbon atoms in 5g of carbon.

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Aluminium is a natural material that is widely utilised in a variety of sectors and may be converted into a variety of synthetic goods via various chemical processes.

The following are some examples of synthetic compounds created from aluminium and the accompanying chemical processes:

Thus, these are only a few examples of synthetic goods generated from aluminium and the chemical processes that produce them.

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Your question seems incomplete, the probable complete question is:

What synthetic products are derived from the natural resource aluminum? What kind of chemical processes are used to create these synthetic products?

Answer:

Explanation:

The density of a substance can be found by using the formula

[tex]density = \frac{mass}{volume} \\[/tex]

From the question

mass = 500 g

volume = 67 mL

We have

[tex]density = \frac{500}{67} \\ = 7.462686[/tex]

We have the final answer as

Hope this helps you

Answer:

Plasma membranes have three primary functions: (1) they keep toxic substances out of the cell; (2) they contain receptors and channels that allow specific molecules, such as ions, nutrients, wastes, and metabolic products, that mediate cellular and extracellular activities to pass between organelles and between the cell and the outside environment; and (3) they separate vital but incompatible metabolic processes conducted within organelles

Explanation:

Answer:

1: each hydrogen atom shares an electron to form a covalent bond

Explanation:

I took the quiz and this was correct!

answer:

black

Explanation:

black is visible

Answer:

113 because there are 113 elements

Explanation:

Answer:

GaCl3

Explanation:

Gallium trichloride | GaCl3 |

Answer:

GaCl3

Explanation:

A coordinate covalent bond, also known as a dative bond, dipolar bond, or coordinate bond is a kind of two-center, two-electron covalent bond in which the two electrons derive from the same atom. The bonding of metal ions to ligands involves this kind of interaction. This type of interaction is central to Lewis theory.