Answer:
633.5
Explanation:
The total presser is 650.00 mmHg, and it is collected over water, which at 19c is 16.5 mmHg. Therefore, to get the total pressure of H2 you would subtract the partial pressure of water from the total pressure.
650-16.5=633.5
Answer:
C) 0.75 mol.
Explanation:
- Molarity is defined as the no. of moles of solute dissolved in 1.0 L of the solution.
So, The molar concentration of sucrose in a can of soda is 0.375 M means that: every 1.0 L of sucrose contains 0.375 mol of sucrose.
∴ 2 liter bottle of soda of the same concentration contains (2 * 0.375 mol = 0.75 mol) of sucrose.
<em>Thus, the right choice is: C) 0.75 mol.</em>
It would be volume.
Volume is not an intensive property because it <em>does</em> change as the amount of substance increases or decreases. The rest of the properties are constant no matter the amount of substance.
Answer:- Oxygen
Explanations:- Elements of same group(family) forms the bonds in almost similar manner. Oxygen and sulfur are the elements of same group and have equal number of valence electrons. So, they form chemical bonds in similar manner as each one needs two more electrons to complete it's octet.
Hydrogen has one valence electron and so it forms only a one single bond.
Nitrogen has 5 valence electrons and it needs three more electrons to complete it's octet and for this it forms three single bonds or one single and one double bond.
Carbon has 4 valence electrons and needs 4 more electrons to complete it's octet. The number of bonds are different for hydrogen, nitrogen and carbon as compared to sulfur.
So, the only and only correct choice is oxygen.
Best answers I could come up with
Gravity
Glaciers
Wind
Water
