Answer:
Explanation:
False
Because " like dissolve like " polar solute dissolve in polar solvent and vice versa
Answer:
1) NaCl, 5)MgS
Explanation:
What makes something an Ionic Bond:
- Ionic bonds are generally between two oppositely charged ions. Usually salts are formed.
- A metal and nonmetal are also generally considered to be ionic.
- Electronegativity also plays a role in a difference of electronegativity of elements being greater than 2.0.
For 1) Na has a charge of 1+ and Cl has a charge of 1-. They both come together to form table salt. Their electronegativity is also larger than 2.0. Also Na is a metal and Cl ion is a nonmetal.
For 2) C and O are both nonmetals and are covalent bonds
For 3) Water is a polar covalent molecule because there is a electronegativity difference between H and O, but not great. H and O are also nonmetals.
For 4) While Fe is a metal and O is a nonmetal, their electronegativity difference is not greater than 2.0. This makes it polar covalent.
For 5) Mg is a metal and S is a nonmetal. They have a large electronegativity difference. Also Mg has a charge of 2+ while S has a charge of 2-.
Specific heat capacity
Explanation:
The quantity that has units J/(g•°C) is specific heat capacity.
What is specific heat capacity?
- This is the amount of heat required to raise the temperature of a 1g substance by 1°C.
- It is simply the heat applied to cause a unit change in the temperature of a substance.
- Metals have low specific heat because they are good conductors.
- Non-metals have a high specific heat capacity.
learn more:
Specific heat brainly.com/question/7210400
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Answer:
Explanation:
We can use the Ideal Gas Law and solve for T.
pV = nRT
Data
p = 2.91 atm
V = 78.13 L
n = 3.07 mol
R = 0.082 06 L·atm·K⁻¹mol⁻¹
Calculations
Answer:
The 95% confidence level is
Explanation:
If we can apply the central limit theorem, we can approximate this distribution to a normal distribution.
The confidence level (for n=1) is defined as
For a 95% confidence interval, according to the normal distribution, z=1.96.
Then we have:
