Friday
August 29, 2014

Posts by lalt


Total # Posts: 48

chemistry .....please help
Which of these temperatures is closest to 100 K? A. -173 °C B. 18 °C C. 0 °F D. 212 °F
July 26, 2012

chemistry .....please help
When a bond is formed, energy is _________ the environment. A. released into B. released from C. kept stable in
July 26, 2012

chemistry .....please help
The direction that heat will flow is BEST determined by _____. A. energy B. pressure C. temperature D. potential energy
July 26, 2012

chemistry .....please help
A 54 kg high jumper has a gravitational potential energy of 1,067 J at the height of his jump. How high did he jump? A. 1.2 m B. 2.0 m C. 3.2 m D. 4.1 m
July 25, 2012

chemistry .....please help :)
Sitting in a chairlift, Rebecca has a gravitational potential energy of 5,997.6 J. If Rebecca has a mass of 51 kg, how high off the ground is the lift? A. 6 m B. 12 m C. 118 m D. 612 m
July 25, 2012

chemistry .....please help
Which of the following statements does not apply to water? A. Like all liquids, water assumes the shape of its container. B. Water is a polar molecule. C. The strong surface tension of water allows it to adhere to the sides of a container and actually move up tubing via ...
July 19, 2012

chemistry
What combination of atoms are involved in this compound? KCl A.1 potassium atom and 2 chlorine atoms B.2 potassium atoms and 1 chlorine atom C.1 potassium atom and 1 chlorine atom D.2 potassium atoms and 2 chlorine atoms
May 28, 2012

chemistry
Which of the following is the balanced equation for this process? A. 2NH4NO3? 2N2 + O2 + 4H2O B. NH4NO3? N2 + 3O2 + H2O C. 2NH4NO3? N2 + O2 + 3H2O D. 2NH4NO3? N2 + 3O2 + 2H2O can someone help me, ?/ please.. !!
May 28, 2012

chemistry
How many atoms of each element are in this compound? MgBr2 A. 2 magnesium atoms and 2 bromine atoms B. 2 magnesium atom and 2 bromine atoms C. 2 magnesium atoms and 1 bromine atom D. 1 magnesium atom and 2 bromine atoms
May 28, 2012

chemistry
The reaction equation below shows the formation of aluminum oxide. Which set of coefficients balances the equation? Al + O2 ?Al2O3 A. 1,1,1 B. 2,3,5 C. 2,4,5 D. 4,3,2 . can someone help me pleaseee!!
May 28, 2012

physical sciences
thank you so much... it was the right answer C:
May 25, 2012

physical sciences
Diamond is the hardest substance known while graphite is one of the softest. Both are made only of carbon atoms. What is the most likely reason why this is true? A. Both are bonded ionically. B. Both are bonded covalently. C. The carbon atoms are arranged differently in ...
May 25, 2012

physical sciences
When a covalent bond forms between two atoms how many atoms have a full outer shell of electrons? A. one B. two C. zero D. It depends on what the atoms are. HELP PLEASEE
May 25, 2012

physical sciences
The atoms of the elements in this group are the most chemically reactive of the ones listed. A. IA B. IIA C. VA D. VIA . HELP PLEASE... .
May 25, 2012

physical sciences
Which of these elements has the most chemically reactive atoms? A. gold B. argon C. carbon D. chlorine HELP PLEASE!!
May 25, 2012

physical sciences
Why do He and Ne then have different numbers of electrons in their outer shells? . . Help Please..
May 25, 2012

PHYSICAL SCIENCES
Which of the following elements has eight valence electrons? A. argon B. beryllium C. chromium D. oxygen . CAN SOMEONE HELP ME, PLEASEEE :D
May 23, 2012

physical sciences
How many neutrons are in an atom of carbon with a mass number of 14? help please...
May 22, 2012

phisycal sciences
Dalton's experiments advanced our understanding of the atom without A. carefully observing and measuring events. B. discovering the internal structure of the atom. C. examining the ratios of elements involved in chemical reactions. D. testing a hypothesis. . Someone can ...
April 30, 2012

american goverment
thank you. Mrs. Sue. I know now the correct answer is c.
April 26, 2012

american goverment
During what period of time did global interdependence first emerge? A. World War and Revolutions period B. Prehistoric Age C. Modern Age D. Age of Interdependence can someone help me with this.... thank you..
April 26, 2012

american gov.
When did the U.S. tradition of state government being organized by a founding document first start? . . Can somebedody help me, where can I found the answer?? thanks
March 8, 2012

american gov.
The Constitution guarantees that the national government will provide each of the states with all of the following except A. management of the state's internal affairs. B. a republican form of government. C. protection against invasion. D. protection against domestic ...
March 2, 2012

american gov.
The following powers are all granted to both state and federal government except which one? A. establish a tax B. build roads C. establish courts D. deny people the right to vote based on race, color, or gender . . . can somebody help me, where can I found the answer??... thanks
March 2, 2012

american goverment
thanks Ms Sue.
March 1, 2012

american goverment
What form of Federalism was most recently associated with the United States? . . can somebody help me please!! thanks
March 1, 2012

algebra 2
solve for x. |x+3.5|=2.5
February 29, 2012

american gov.
Which of the following was not a key political thinker during the Age of Enlightenment? A. Jean-Jacques Rousseau B. Thomas Paine C. John Calvin D. Voltaire
February 28, 2012

american goverment
The system of checks and balances allows the Supreme Court to A. veto legislation passed in Congress. B. nominate candidates for congressional seats. C. declare acts of the president unconstitutional. D. select judges to serve in the federal court system. I think is D, but I&#...
February 23, 2012

american goverment
One function that both the House and Senate share is to? . Somebody can tell me where can I found this?? Thanks
February 23, 2012

American Goverment
What is one way the Federal Communications Commission regulates radio and television broadcasts?
February 21, 2012

American Goverment
Which phrase from the U.S. Constitution BEST reflects the principle of popular sovereignty? A. “No person shall be a Senator . . .” B. “The Congress shall have the Power . . .” C. “We the People . . .” D. “Establish Justice . . .”
February 16, 2012

American Goverment
The Preamble of the U.S. Constitution “We the People of the United States, in Order to form a more perfect Union, establish Justice, insure domestic Tranquility, provide for the common defense, promote the general Welfare, and secure the Blessings of Liberty to ourselves ...
February 16, 2012

American Goverment
What is the main function of the State Department? A. to determine foreign policy B. to determine domestic policy C. to determine financial policy D. to determine military policy ?
February 16, 2012

American Goverment
In the United States, the emphasis on individual rights helped to shape A. a powerful foreign policy. B. a sense of national identity. C. a strict class system. D. a system of religious intolerance. ?? help Please.
February 16, 2012

algebra 2
Petra needs to find the equation of a line through (–2, 3) that is parallel to the line represented by y = 2x– 4. Which equation best represents Petra's equation?
February 10, 2012

algebra 2
Which equation correctly shows d = xyz solved for z?
February 10, 2012

algebra 1
Delilah buys an $18,000 car for her catering business. The equation below shows her earnings after each catering event, where x represents the number of hours worked. y=18x 150 If each event is approximately 5 hours long, about how many events must Delilah cater to earn enough...
February 10, 2012

physics
Atoms in a gaseous state have?
February 6, 2012

physics
When boiling water begins to turn to steam, which of the following remains the same in both the liquid and the vapor?
February 6, 2012

physics
When boiling water begins to turn to steam, which of the following remains the same in both the liquid and the vapor?
February 6, 2012

physics
The specific temperature at which a substance changes from a liquid to a gas is an example of a?
February 6, 2012

economics
A prolonged economic contraction is called ?
February 1, 2012

economics
How do economists determine the real GDP per capita?
February 1, 2012

economics
Which banking service provides easy access to money, monthly statements, easier bill payment, and more security than carrying cash?
February 1, 2012

economics
Which banking service provides easy access to money, monthly statements, easier bill payment, and more security than carrying cash?
February 1, 2012

economics
Which of the following is a FALSE statement? A. Changes in the price of inputs can cause a shift in supply. B. If the price of other goods change, it can cause a shift in supply. C. Government involvement in the economy will not cause a shift in supply. D. Certain advancements...
January 31, 2012

economics
What is the main difference between macroeconomics and microeconomics?
January 31, 2012

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