Answer:
<u>253.33 mmHg</u>
Explanation:
According to Charles' Law,
P₁ / T₁ = P₂ / T₂
P₁T₂ = P₂T₁
P₂ = P₁T₂ / T₁
= 760 x 40 / 30
= 760 x 4/3
= 1013.33 mmHg
Change in Pressure
= 1013.33 - 760
= <u>253.33 mmHg</u>
Answer:
High resistance
Low conductivity
Explanation:
The more resistance (aka less conductivity) there is, the more the energy is turned into heat than simply passing through the object.
Answer:
Four covalent bonds.
Explanation:
Hello,
In this case, given the attached picture in which you can find the Lewis dot structure for metanal (formaldehyde) we can see two C-H bonds and two C-O bonds via a double bond, thus, we can compute the type of each bond given the electronegativities of hydrogen, carbon and oxygen which are 2.1, 2.5 and 3.5 respectively:

Thus, since both electronegativity difference are less 1.7 we infer that all of them are covalent, therefore, it has four covalent bonds, two C-H bonds and a double C-O bond.
Best regards-
Answer:
A hypothesis is a possible explanation for a set of observations or an answer to a scientific question. A hypothesis must be testable and measurable.
Explanation:
The hotter it gets, the faster molecules move, solid form is in low temperature, liquid in medium temperature and gas in high temperature.