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Maci

Questions (58)

A rectangle has an area of 3 squa·re feet and width-½ foot. What is the length of the rectangle?
1. 1 answer
2. 250 views
What independent reading selection have on as a reader? would you recommend your selection to a friend? why or why not answer.I
1. 5 answers
2. 730 views
Why does it matter that math materials are either open-ended or self-correcting?
1. 2 answers
2. 1,722 views
In a school survey year 6 found that for every 4 girls there were 5 boys what is the ratio of girls to boys
1. 1 answer
2. 563 views
You went to lunch with your friend and the bill is $19.00 your lunch is $3.00 more than your friends. How much was your friends
1. 6 answers
2. 4,149 views
How do I make this more positive?Dear renter: Effective march 1, the rent for your parking space will go up $10 a month.
1. 1 answer
2. 823 views
how do varieties of informative and positive messages adapt the basic pattern?
1. 1 answer
2. 712 views
My teacher has assigned a project. I have to make a collage for Pip in Great Expectations. I have to use symbols that would
1. 1 answer
2. 471 views
give equations showing the commercial methods for preparations of the halogen (F2, Cl2, Br2, I2)
1. 1 answer
2. 919 views
a. describe the frasch processfor mining sulfur.b. why must the water be superheated?
1. 1 answer
2. 402 views
describe what happens to sulphur as it is heated from room temperature to about 250 degrees c mention the various allotropes
1. 1 answer
2. 687 views
give five uses of phosphorus either as the acid or as one of its salts.
1. 2 answers
2. 422 views
what are the names of three important nitrogen fertilizers with their formulas?
1. 1 answer
2. 446 views
though both nitrogen and oxygen are diatomic gases, nitrogen is far less reactive than oxygen. Why?
1. 1 answer
2. 717 views
Differentiate between oxide, a peroxide, and a superoxide?
1. 7 answers
2. 690 views
write balanced equations of hydrogen with the following:a. potassium b. fluorine c. sulfur
1. 2 answers
2. 616 views
write balanced equations of hydrogen with the following:a. potassium b. fluorine c. sulfur
1. 0 answers
2. 463 views
what types of close packed unit cells do most metals assume?
1. 0 answers
2. 415 views
distinguish between aorphous and crystalline soilds and give an example of each
1. 1 answer
2. 351 views
which intermolecular forces would exist between molecules of:a. H2S b. H2O c.O2 d. SiH4 e. HCl f. CH3Cl g. CO2 h. NH3
1. 2 answers
2. 815 views
which intermolecular forces would exist between molecules of:a. H2S b. H2O c.O2 d. SiH4 e. HCl f. CH3Cl g. CO2 h. NH3
1. 1 answer
2. 947 views
which intermolecular forces would exist between molecules of:a. H2S b. H2O c.O2 d. SiH4 e. HCl f. CH3Cl g. CO2 h. NH3
1. 2 answers
2. 674 views
explain the difference between hydrogen bonds and dipole dipole forces.
1. 1 answer
2. 450 views
how are intermolecular forces different from chemical bonds?
1. 1 answer
2. 414 views
what conditions must exist for a polyatomic molecule to be nonpolar?
1. 1 answer
2. 1,914 views
what shape would you expect a molecule to hove that was based on an atom with only two bonding pairs of electrons? Three bonding
1. 2 answers
2. 585 views
what shape would you expect a molecule to hove that was based on an atom with only two bonding pairs of electrons? Three bonding
1. 0 answers
2. 477 views
what do we mean when we describe a molecule as being polar?
1. 2 answers
2. 1,044 views
Tell whether the bonds between the following atoms are polar covalent or pure covalent bonds.a. Si-Si b. H-O c. C-H d. C-O e.
1. 2 answers
2. 1,419 views
Predict what type of bonging predominates in each of the following.a. AsCl3 b. LiBr c. CuNi d. SO2 e. XeF6 f. Fe g. MnF2 h. HCN
1. 2 answers
2. 739 views
if Ca and F atoms are allowed to react what will be the electron configurations and lewis structures of the resultant ions?
1. 1 answer
2. 2,179 views
if Ca and F atoms are allowed to react what will be the electron configurations and lewis structures of the resultant ions?
1. 2 answers
2. 916 views
A force of 20 Newtons gives a brick an acceleration of 5 m/s^2. What is the mass of the brick?
1. 0 answers
2. 463 views
what are some problems with regulatory agencies?
1. 1 answer
2. 436 views
what distinguishes the irs and osha from other regulatory agencies?
1. 0 answers
2. 484 views
How are intermolecular forces different from the forces that bond atoms together into molecules? How are they similar?
1. 0 answers
2. 581 views
why is it impossible to draw a distinction between natural substances and chemical substances?
1. 2 answers
2. 776 views
which element do not combine readily with other elements because they already have eight electrons in their outermost shell?
1. 1 answer
2. 504 views
why is it impossible to draw a distinction between natural substances and chemical substances?
1. 0 answers
2. 529 views
what are the three ceremonial functions of the president as chief of state?
1. 1 answer
2. 474 views
what is the foundation of the president's authority and influence?
1. 1 answer
2. 492 views
explain the importance of a president's character.
1. 0 answers
2. 381 views
Predict whether triangle s would be positive or negative for each of the following; give a reason for your answer.
1. 1 answer
2. 1,066 views
Arrange the following systems in order of increasing randomness or disorder(bring with the most ordered system)1 mol liquid
1. 2 answers
2. 2,132 views
when triangle s (entropy) is positive does that mean that the disorder has increased or decreased? Explain
1. 1 answer
2. 506 views
how many joules of heat are needed to vaporize 50.0 g water at 100.0 C?
1. 2 answers
2. 2,226 views
how many joules of heat are needed to heat 900.0g water from 18.0 C to 98.0 C?
1. 1 answer
2. 1,022 views
How many joules of heat are required to melt 60.5g of ice at 0 degrees C?
1. 1 answer
2. 1,397 views
Propane(C3H8), the major component of LP game, is often used as heating and cooking fuels in homes. When propane is burned(
1. 3 answers
2. 1,516 views
sodium metal reacts violently with water to produce aqueous sodium hydroxide and hydrogen gas. calculate the enthalpy change for
1. 5 answers
2. 2,957 views
If the pressure on a balloon were quadrupled what would happen to the balloons volume?
1. 3 answers
2. 806 views
A sperm whale dives from the surface to great depths the air in its lungs progessively shinks until the lungs are completely
1. 5 answers
2. 1,237 views
The reaction for the burning of one type of match tip is as follows:P4S3(s) + 8 O2(g)----> P4O10(g) + 3 SO2(g) What volume in L
1. 6 answers
2. 920 views
Why is it necessary to correct the pressure of a gas that is collected over water?
1. 1 answer
2. 456 views
Consider three gases: chlorine, freon-12, and radon. According to Grahams law of diffusion which gas would you expect to diffuse
1. 1 answer
2. 863 views
when calculating stoichiometric relationships in gas reactions using the combined gas law why is it important to convert the
1. 1 answer
2. 656 views
what is the partial pressure of N2 in the mixture of N2 and O2 having a total pressure of 1075 torr if the partial pressure of
1. 1 answer
2. 932 views
What are the different types of seeds??(mustard,apples,etc)
1. 1 answer
2. 780 views

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