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3 years ago

what kind of generalization can you make about how the number of protons and neutrons are related to each other in the elements

1 answer:

4 0

... to be called elements. This lesson shows you how to predict the numbers of neutrons, electrons, andprotons of the isotopes they are likely to find in nature. (cont.) ... What kind of generalization can you make about how the number of protons and neutrons are related to each other in the elements? Unit 1 • Investigation IV

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A lead sphere has a mass of 1.20 x 104 g, and its volume is 1.05 x 103 cm^3. Calculate the density of lead.

Hatshy [7]

Answer: The density of lead will be $11.42g/cm^3$

Explanation:

Density is defined as the mass contained per unit volume.

$Density=\frac{mass}{Volume}$

Given : Mass of lead= $1.20\times 10^4g$

Volume of lead = $1.05\times 10^3cm^3$

Putting in the values we get:

$Density=\frac{1.20\times 10^4}{1.05\times 10^3}=11.42g/cm^3$

Thus density of lead will be $11.42g/cm^3$

4 0

3 years ago

A chef fills a 100 ml container with 76.5 g of cooking oil. What is the density of the oil? \

Feliz [49]

Formula for density is mass / volume.

100 ml is volume. 76.5g of cooking oil is
the mass.

Therefore

76.5/100 = .765g/ml

7 0

3 years ago

Need structural formula for each 12, HOCH a CH 1 Dipherylamine.

guajiro [1.7K]

12) Ethylene glycol and Diphenylamine

attached images

hope this helps!

5 0

3 years ago

What is the best explanation for the frequency of eclipses?

Katarina [22]

Answer:A

Explanation:

7 0

3 years ago

ubstance A is a nonpolar liquid and has only dispersion forces among its constituent particles. Substance B is also a nonpolar l

LenaWriter [7]

Answer:

Their particles exhibit the same type of intermolecular interaction

Explanation:

In chemistry, we commonly say that 'like dissolves like'. This implies that polar solvents dissolves polar solutes while nonpolar solvents dissolve nonpolar solutes.

This phenomenon of 'like dissolves like' is possible because, the dissolution of one substance in another involves intermolecular interaction between the solute and solvent molecules.

If the molecules of solute and solvent are both nonpolar and have about the same magnitude of intermolecular (dispersion) forces, interaction between the both molecules is significant hence the solute dissolves completely in the solvent.

6 0

3 years ago