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In an economy with 200 million people, 120 million hold jobs and 30 million are not working butare looking for jobs. The number of people in the labor force is _______________.
A. 200 million.
B. 80 million.
C. 150 million.
D. 90 million.
True or False.
1. Polyhaloalkanes are compounds obtained by replacing two or more H atoms in a hydrocarbon with halogen atoms.
2. A functional group is an atom or a group of atoms the presence of which confers characteristic properties to the compound.
3. Polymers are very large molecules made of repeating structural units called monomers.
4. The group of lipids are subclassified based on whether they can udergo saponification or not.
5. Biomolecules are non-carbon-containing compounds which are of biological importance as they make up and carry out by their chemical reactions the needs of the living organism where they are.
6. Carbohydrates possessing sweet taste are called glucose.
7. Carbohydrates are a group of various oily or waxy substances with long-chain hydrocarbon groups present in or derived from living organisms.
True or False.
1. Carbon atoms have the unique ability to form weak bonds with each other in different ways.
2. Carbon forms four covalent bonds, using hybrid atomic orbitals in bond formation.
3. Hybridization involves the mixing and arrangement of pure atomic orbitals resulting in combinations of s, p, and d orbitals, which are identical in stability and reactivity.
4. Alkenes are open-chain hydrocarbons with single covalent bonds between the carbon atoms.
5. Alkanes are open-chain hydrocarbons with at least one double bond between carbon atoms.
6. Hydrocarbons contain only hydrogen and carbon atoms and are the simplest organic compounds.
7. Condensed ring systems are those that consist of two or more benzene rings joined together in chains or rings.
8. Hydrocarbon derivatives are compounds obtained when other elements are added or substituted to the hydrocarbon components during physical reaction.
Does the sequence 3+ (-1)^n converge to 2. Justify
What is the relationship between an isomer and a tautomer?
Leftovers
by CodeChum Admin
We Filipinos are quite known for the habit of leaving at least one of the many pieces of food on the plate as it can't be equally divided among all at most times. Just like when 3 people decide to eat a pizza of 10 slices, there will often be at least one slice left on the box. To accurately show just how many pieces of things are left when divided by a certain number, we code it using modulo.
Care to do it for me?
Input
A line containing two integers separated by a space.
10·3Output
A single line containing an integer.
1If 10 kg/min of air are compressed isothermally from P1=96kPa and V1=7.65m^3/min to P3=620kPa, find the work change of entropy and the heat for: a) nonflow process and b) steady flow process with v1=15m/s and v2=60m/s.
f 10 kg/min of air are compressed isothermally from P1=96kPa. Find the work change entropy and the heat for
(A) non flow process with v1=15m/s and v2=60m/s
Three pounds of perfect gas with R=38 ft.lb/lb.R and k= 1.667 have 300 Btu of heat added during a reversible nonflow constant pressure change of state. The initial temperature is 100 °F. Determine the
(A) final temperature
(B) change in heat ∆H
(C) W
(D) ∆U
(E) ∆S
A cylindrical drum 2-ft diameter and 4ft height is filled with fluid whose density is 40lb/ft^3.
Determine
(A) the total volume of
(B) its total mass in pounds and slugs
(C) its specific volume and
(D) its specific weight where g=31.90 fps^2
#340153 on Dec 2023