The answer to this question would be B. hydrogen.
Two polar molecules can make hydrogen bond which was found in many polar molecules.
One example of hydrogen bond would be in the water. Water is a polar molecule with a positive end at the hydrogen side. Hydrogen bond in water is formed by molecule to molecule bond that looks like tetrahedral.
Answer:
19.38 moles
Explanation: When in doubt, use stoichiometry
Molar mass of H2O = 2(molar mass H) + molar mass O
=2(1.01) + 16.00 = 18.02
Now, you just convert:
349.3g(1 mol H2O/18.02gH2O)
= 19.384
But the value given has 4 significant figures, so we write it as 19.38
Answer:
The density increases.
Explanation:
As you go deeper in depth, pressure increases. Density = mass/volume. The layers beneath us due to pressure get packed to the point of being very dense.
Answer:
The volume of basketball is 7216.5 cm³.
Explanation:
Given data:
Radius of ball = 12 cm
Volume of ball = ?
Solution:
We will apply the volume formula of sphere.
V = 4/3 ×π×r³
we know that,
π = 22/7
r = 12 cm
Now we will put the values in formula.
V = 4/3 × 3.14 × (12 cm)³
V = 4/3 × 3.14 ×1728 cm³
V = 7216.5 cm³
Thus, the volume of basketball is 7216.5 cm³.
Answer:
The change in heat of the water is given by: qwater = cpmΔT where cp is the specific heat of water, which is 4.184 J/gC, m is the mass of water in the calorimeter in grams, and delta T is the change in temperature
Explanation: