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Chemistry
Chemistry
College
1.1Which of these is NOT an intermolecular force?ACovalent bondingBHydrogen bondingLondon / dispersion forcesDipole - dipole forces1.2London forces are found between ...A two polar molecules.B two non-polar molecules.C a polar molecule and a non-polar molecule.Da polar molecule and an ionic substance.(21.3 Which of the following compounds have a shape that can be described astrigonal bipyramidal?ACH4BPCL5SF6DBF3(2)1.4Which of the following have the same molecular geometry?CO2, H20, BeCl2 and N20ACO2, BeCl2 and N2OBH20 and N20 onlyCH20, BeCl2 and CO2CO2 and N20 only(2)
Chemistry
High School
What is the mass of 1.50 mole of (NH4)2CO3?
Chemistry
High School
Is heat a from of kinetic or potential energy?
Chemistry
Middle School
What identifies the levels of organization that make up the respiratory system in order of increasing complexity?
Chemistry
High School
Jose was driving to New York City. He traveled 100 miles in the first hour of the trip and 20 miles in the last hour of his trip. Which can wesay about Jose's drive? (speed = distance = time)A. Jose drove less than 120 miles.B. Jose drove faster the first hour of his drive.C. Jose drove slower the first hour of his drive.D. Jose drove the same speed for the entire drive.
Chemistry
High School
how does dipping an iron bucket in Molten zinc protect it?
Chemistry
Middle School
Pleeeeeease help Ill give brainliest! With number 20.
Chemistry
High School
(No scammers) can someone help me pls
Chemistry
College
What chemical test to differentiate propane and propene
Chemistry
High School
10 If Steve was making a solution of ammoniumchloride, how many grams would he have leftundissolved (if any) if he initially placed 140 g ofthe chemical into 200 grams of water at 80 C.
Chemistry
College
The following substances dissolve when added to water. Classify the substances according to the strongest solute-solvent interaction that will occur between the given substances and water during dissolution. Drag the appropriate items to their respective bins. Not all bins may contain an item and some bins may contain multiple items.NH3 AlBr3 CH3OH AlCl
Chemistry
High School
Which is a property of a covalent compound?A.being shaped easilyB.good electrical conductivityC.low melting point
Chemistry
High School
What is the mass of 4.57 x 1021 molecules of ammonia (NH3)?
Chemistry
High School
How would I make a biodegradable mask
Chemistry
High School
A gas has an initial volume of 15 L. If the temperature increases from 330 K to 450 K, what is the new volume.
Chemistry
High School
How do I perform a titration on coca-cola or Pepsi, when I cannot see the color change because the color is too dark. The indicator is phenolphthalein.
Chemistry
High School
what happens to the rate of a reaction as the reaction progresses
Chemistry
High School
1. An unknown compound was found to have a percent composition of: 47.0%potassium, 14.5% carbon, and 38.5 % oxygen. What is its empirical formula? Ifthe true molar mass of the compound is 166.22 g/mol, what is its molecularformula?
Chemistry
College
A dilute solution of hydrofluoric acid has a volume of 3.0 L and a molarity of 3.0M. If the original solution had a volume of 2.0L, what was the initial molarity?
Chemistry
High School
Viruses are not considered organisms, because they lack many of the characteristics of living things. A virus is essentially a string of genetic material ina protein coat. Some viruses contain DNA, while others, called retroviruses, contain RNA. One example of a retrovirus is HIV, which causes AIDSHow is RNA different from DNA? Choose the 2 statements that applyA. DNA and RNA use different sets of nitrogen bases.BDNA has 1 strand of genetic material while RNA has 2 strandsC. DNA contains deoxyribose sugar and RNA contains ribose sugar,D. DNA and RNA are proteins
Chemistry
High School
A 10.150g sample of a compound known to contain phosphorus and oxygen yields 5.717 g of oxygen. Find the empirical formula of the compound
Chemistry
College
A solution has apH of 2.5.Answer the following questions.pOH =[H]=[OH]=
Chemistry
College
How is gravity an attractive force?
Chemistry
High School
Which best describes the products of achemical equation?A. Chemicals before the reaction startsB. Chemicals after the reaction endsC. Chemicals on the left of the arrowD. Chemicals on the right of the arrow
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