Can a tank of oxygen gas ever be half empty? explain

Answer is: B. Heat transfers to his body from the water by conduction.

Thermal conductuction is the transfer of heat through physical contact. Thermal conduction is the transfer of heat by microscopic collisions of particles.

Heat spontaneously flows from a hotter (in this example water) to a colder body (in this example human body).

The process of heat conduction depends on four basic factors: the temperature gradient, the cross section of the materials involved, their path length and the properties of those materials.

Answer:

All of the above

Explanation:

Hopes this helps, let me know if it's not.

The compound that represents empiricalformula is NH3.

EMPIRICAL FORMULA:

• Empirical formula refers to formula of a compound that depicts the simplest whole number ratio of its constituent element.

• The empirical ratio of the elements of a compound should not be able to be broken down further. For example: compounds such as N2O4, C3H6, and P4O10 can be further broken down into NO2, CH2 and P2O5.

• This means that NH3 is the empiricalformula because it is the simplest whole number ratio of the compound.

Learn more at: brainly.com/question/21280037?referrer=searchResults

Hello!

The answer is:

The empirical formula is the option B.

Why?

The empirical formula of a compound is the simplest formula that can be written. On the opposite, the molecular formula involves a variant of the same compound, but it can be also simplified to an empirical formula.

We are looking for a formula that cannot be simplified by dividing the number of molecules/atoms that conforms the compound.

Let's discard option by option in order to find which formula is an empirical formula (cannot be simplified)

A.

It's not an empirical formula, it's a molecular formula since it can be obtained by multiplying the empirical formula of the same compound.

B.

It's an empirical formula since it cannot be obtained by the multiplication of a whole number and the simplest formula. It's the simplest formula that we can find of the compound.

C.

It's not an empirical formula, it's a molecular formula since it can be obtained by multiplying the empirical formula of the same compound.

D.

It's not an empirical formula, it's a molecular formula since it can be obtained by multiplying the empirical formula of the same compound.

Hence, the empirical formula is the optionB.

Have a nice day!

Answer: m = 0.448 g C9H8O4

Explanation: Solution attached

Convert molecules of C9H8O4 to moles using the Avogadro's number

Convert moles of C9H8O4 to mass using its molar mass.