Answer:
Rate law is: Rate = k[NO2]^2 = 10 x [NO2]^2
When [NO2] = 0.200 M:
Rate = 10 x 0.200^2 = 0.400 M/s
When [NO2] = 0.100 M:
Rate = 10 x 0.100^2 = 0.100 M/s
When [NO2] = 0.050 M:
Rate = 10 x 0.050^2 = 0.0250 M/s
Explanation:
If you used the method of initial rates to obtain the order for no2, predict what reaction rates you would measure in the beginning of the reaction for initial concentrations of 0.200 m, 0.100 m, & 0.050 m no2.
Rate law is: Rate = k[NO2]^2 = 10 x [NO2]^2
When [NO2] = 0.200 M:
Rate = 10 x 0.200^2 = 0.400 M/s
When [NO2] = 0.100 M:
Rate = 10 x 0.100^2 = 0.100 M/s
When [NO2] = 0.050 M:
Rate = 10 x 0.050^2 = 0.0250 M/s
Answer:
The hormone glucagon secreted by the pancreatic cells cause the release of glucose from the body's storage.
Explanation:
The pancreas is an organ found inside the abdomen. This organ produces hormones such as:
- Insulin
- Glucagon
- Somatostatin
- Vasoactive intestinal peptide
Insulin and glucagon are considered primary hormones secreted by the pancreas.
Upon skipping a meal, leading to a drop in blood sugar levels, glucagon is secreted by the pancreas. This hormone then acts on the liver to stimulate the conversion of stored up glycogen present in the liver into glucose. This produced glucose is then released into the blood stream, availing the boy glucose for energy.
Answer: Option (C) is the correct answer.
Explanation:
Biopower means production of electricity with the help of biomass. The unused wood, crops, agricultural residue, animal residue etc when burned then they help in generating biopower.
It is a renewable energy. Since biomass is readily available in most of the places. Therefore, the advantage of biopower is that it is also readily available in most places.
For example, bacterial decay produces a certain amount of heat which further helps in the production of energy.
Atoms of elements that are nonmetals tend to gain electrons and atoms of metallic elements tend to lose electrons. Metals have few electrons in their valence shells.
By losing those electrons, these metals achieve noble gas configuration and satisfy the octet rule.
Nonmetals that have close to 8 electrons in their valence shells readily accept electrons to achieve noble gas configuration.
An example is the reaction between calcium and oxygen. Calcium is a metal and has 2 valence electrons. Oxygen is a nonmetal and has 6 valence electrons.
Calcium gives up its two valence electrons and oxygen accepts them and an ionic bond is established resulting in the formation of anew compound namely calcium oxide.
Answer:
Explanation:
1. Miles travelled in an average month
2. Using a gasoline powered vehicle
(a) Moles of heptane used
(b) Equation for combustion
C₇H₁₆ + O₂ ⟶ 7CO₂ + 8H₂O
(c) Moles of CO₂ formed
(d) Volume of CO₂ formed
At 20 °C and 1 atm, the molar volume of a gas is 24.0 L.
3. Using an electric vehicle
(a) Theoretical energy used
(b) Actual energy used
The power station is only 85 % efficient.
(c) Combustion of CH₄
CH₄ + 2O₂ ⟶ CO₂ +2 H₂O
(d) Equivalent volume of CO₂
The heat of combustion of methane is -802.3 kJ·mol⁻¹
4. Comparison
