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Chemistry
Chemistry
High School
1. A sample of oxygen (0.) gas has a mass of 32.65 g and a volume of 24.924 L. What is the density of the 0,gas?
Chemistry
College
help whats 2+2 i really don't know what the answer is i think it 1,250 but idk
Chemistry
High School
Is cobalt 60 more dangerous than bananas ( potassium 40) and why ?
Chemistry
College
Calculate the time,speed is 100m/s and distance is 2000 meter
Chemistry
College
Oxalic acid, H2C2O4*2H2O (molar mass = 126.07 g/mol) is oftenused as a primary standard for the standardization of a NaOHsolution. If 0.147 g of oxalic acid dihydrate is nutralizedby 23.64mL of a NaOH solution, what is the molar concentration ofthe NAOH solution? Oxalic acid is a diprotic acid. (What is thebalanced equation?)
Chemistry
High School
PLEASE ANSWER NOW!!! This chart shows what happens when each object is placed on a balance with a 10 kg weight on the other side. Which statement is best supported by the information in the chart? Object 1 is the heaviest object. Object 3 is heavier than Object 1. The weight is heavier than Object 2. The weight is the heaviest object.
Chemistry
High School
Noble gases share which characteristics? Check all that apply A.) they all have one free electron in their outer shell B.) theyre considered transition elements C.) they dont react with other elements D.) theyre inert
Chemistry
High School
Forming a hypothesis is accomplished through___ reasoning
Chemistry
High School
what provides the energy needed to fuel the water cycle
Chemistry
High School
Can someone help with this one Im desperate
Chemistry
College
The density of silver is 10.5 g/cm3. What is the mass (in kilograms) of a cube of silver that measures 0.94 m on each side?
Chemistry
High School
Baking powder is example of???
Chemistry
High School
Solve the following problem and round the correct number of significantfigures?4.5 x 2.34 = ?
Chemistry
High School
110) Lake Michigan holds 1.3 x 10's gallons of water. If just Chicago removed water from the lake and itnever rained again, how many days would the water last? Chicago uses 1.2 x 109 gallons of water /daygallons/day
Chemistry
High School
I need help please, will give 5 stars
Chemistry
High School
what is the molecular geometry of SCN- using the electron pair repulsion model?
Chemistry
High School
Which decimal is equivalent to 56?
Chemistry
High School
Is 4H2O an organic molecule ?
Chemistry
High School
What is the name of the ionic compound LigPO,?lanthanum phosphidelanthanum phosphidelithium phosphatelanthanum phosphate
Chemistry
College
You have two compounds that you have spotted on the TLC plate. One compound is more polar than the other. You ran the TLC plate with neat hexanes and found that only one spot moved a small distance up the plate. What might you expect to see if you ran a TLC plate in a 50/50 mixture of hexanes and ethyl acetate
Chemistry
College
What has moremass, a mole ofsodium chlorideor 2 moles ofaluminum?
Chemistry
High School
7. A square chunk of plastic has a length of 5 cm, width of 5 cm and height of 5 cm. It has a mass of 200 g. What is its density?
Chemistry
College
23A solid is insoluble in water but dissolves in aqueous acid and in aqueous alkali withoutevolution of a gas in either case. What could the solid be?AB.Dcopper(II) carbonatecopper(II) hydroxidezinc carbonatezinc hydroxide
Chemistry
High School
Write the noble gas configuration for nickel
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