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3 years ago

As temperature increases, density increases. True or False

2 answers:

7 0

If the temperature of a chemical increases than the density increases because the rise of temperature expands the chemical which increases the density.

Alex73 [517]3 years ago

4 0

Density increases with the temperature, true.

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PLEASE HELP!!!!!!!!!

andreev551 [17]

The average atomic mass of the imaginary element : 47.255 amu

<h3>Further explanation </h3>

The elements in nature have several types of isotopes

Isotopes are elements that have the same Atomic Number (Proton)

Atomic mass is the average atomic mass of all its isotopes

Mass atom X = mass isotope 1 . % + mass isotope 2.% ..

isotope E-47 47.011 amu, 87.34%

isotope E-48 48.008 amu, 6.895

isotope E-49 50.009 amu, 5.77%

The average atomic mass :

$\tt avg~mass=0.8734\times 47.011+0.06895\times 48.008+0.0577\times 50.009\\\\avg~mass=41.059+3.310+2.886\\\\avg~mass=47.255~amu$

5 0

2 years ago

3. The exosphere is the outer layer of the

barxatty [35]

Answer:

D. exosphere is the outer layer of the thermosphere

3 0

3 years ago

Can someone help please

Serhud [2]

Let the mass be X g

percentage = X/ 6.50 * 100 =2.2%

X= 0.143 g

The mass is 0.143 g

8 0

3 years ago

Read 2 more answers

What is the pH of a solution whose hydronium ion [H20+] (or proton [H+1)

pav-90 [236]

Answer:

$pH = - log(7.6 \times {10}^{ - 5} ) \\ pH = 4.12$

8 0

3 years ago

Need help on stoichiometry asap please

lbvjy [14]

1. Convert 135g Fe2O3 to moles, divide by 2, and multiply the resulting number by the molar mass of Al

8 0

3 years ago