Ask question

Ask question

All categories

3 years ago

6

The molecular formula for caffeine is C8H10N4O2. Which of the following elements is not found in caffeine? carbon helium nitroge

n oxygen

2 answers:

madreJ [45]3 years ago

8 0

Helium is not found. That is 8 molecules of carbon, 10 Hydrogen, 4 nitrogen, and 2 Oxygen. I think...Hope this helps.

Alina [70]3 years ago

4 0

Answer:

helium

Explanation:

You might be interested in

Designed to be a measure of the amount of energy released by an earthquake

11Alexandr11 [23.1K]

The answer is the moment magnitude scale

5 0

4 years ago

How many sulfur atoms are present in 25.6 g of Al2(S2O3)3

IgorC [24]

Given the mass of $Al_{2}(S_{2}O_{3})_{3}$ =25.6 g

The molar mass of $Al_{2}(S_{2}O_{3})_{3}$ =390.35g/mol

Converting mass of $Al_{2}(S_{2}O_{3})_{3}$ to moles:

$25.6 g Al_{2}(S_{2}O_{3})_{3}*\frac{1molAl_{2}(S_{2}O_{3}}{390.35 gAl_{2}(S_{2}O_{3}} =0.0656molAl_{2}(S_{2}O_{3}$

Converting mol $Al_{2}(S_{2}O_{3})_{3}$ to mol S:

$0.0656mol Al_{2}(S_{2}O_{3})_{3}*\frac{6molS}{1mol Al_{2}(S_{2}O_{3})_{3}}=0.3936 molS$

Converting mol S to atoms of S using Avogadro's number:

1 mol = $6.022*10^{23}atoms$

$0.3936mol S *\frac{6.022*10^{23}atoms S}{1 mol S}=2.37*10^{23} S atoms$

5 0

3 years ago

Here is a chemical formula 3CO2 to the coefficient in the formula is

Flura [38]

The coefficient for the chemical formula 3CO2 is the 3.

5 0

3 years ago

How can the gravitational potential energy of an object be changed?

Aleksandr [31]

Answer:

Gravitational potential energy may be converted to other forms of energy, such as kinetic energy. If we release the mass, gravitational force will do an amount of work equal to mgh on it, thereby increasing its kinetic energy by that same amount (by the work-energy theorem).

Explanation:

7 0

3 years ago

A trait developed through learning is a(n)___________

matrenka [14]

An acquired trait is a trait developed through learning. (:

5 0

4 years ago

Read 2 more answers