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Chemistry Questions
CHEMISTRY
MIDDLE SCHOOL
what happens when a peppermint is put in these three things soda, vinegar, lemon juice, and milk plz help me i need this for my science project due in exactly 2 weeks!!!!!!
CHEMISTRY
MIDDLE SCHOOL
Is rock solution because it is made up of minerals, water, stone, and dirt?
CHEMISTRY
MIDDLE SCHOOL
How many nerves and bones and red blood cells does our body have plz help!!
CHEMISTRY
MIDDLE SCHOOL
What are the main causes for seasons on earth?
CHEMISTRY
HIGH SCHOOL
Which of the following is true of coral?a.It is located in deep sea regions.b.It supports few species.c.It is a large and complex organism.d.It is composed of thousands of individuals.
CHEMISTRY
MIDDLE SCHOOL
How many lithium atoms are in 4.5 moles of Li?
CHEMISTRY
MIDDLE SCHOOL
The electric pencil sharpener in Mrs. Brown's classroom gets very warm on days when many students need to sharpen their pencils.Choose the form of energy to fill in the blank in the energy conversion diagram below.Electrical Energy ____________________ Heat EnergyLight EnergyMechanical EnergyNuclear EnergyChemical Energy
CHEMISTRY
MIDDLE SCHOOL
What only happens during a chemical reaction? A.Colors change.B.New substances are formed.C.Bubbles form.D.A solution is made.
CHEMISTRY
MIDDLE SCHOOL
This reaction is an explosive reaction of a strong acid combining with a strong base.H2SO4 + 2NaOH → 2H2O + Na2SO4Which compounds are the reactants and which are the products?A.reactants: H2SO4 + 2NaOHproducts: 2H2O + Na2SO4B.reactants: 2NaOH + Na2SO4products: H2SO4 + 2H2OC.reactants: 2H2O + Na2SO4products: H2SO4 + 2NaOHD.reactants: H2SO4 + 2H2Oproducts: 2NaOH + Na2SO4
CHEMISTRY
HIGH SCHOOL
Why alkali metals are found in many common substances but are rarely found in pure form?
CHEMISTRY
HIGH SCHOOL
In the formation of a macromolecule, what type of bond would join two amino acid subunits? A) ionic bond B) phosphodiester bond C) hydrogen bond D) peptide bond
CHEMISTRY
HIGH SCHOOL
The churning air in the troposphere helps determine the of a place
CHEMISTRY
MIDDLE SCHOOL
PLEASE HELP ME RIGHT NOW PLEASE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!--INCLUDING LOUISIANA AND MINNESOTA--- ,THERE ARE 24 STATES WEST OF THE MISSISSIPPI RIVER . HOW MANY STATES THEN ARE EAST OF THE MISSISSIPPI RIVER?PLEASE SOMEBODY ANSWER THX!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
CHEMISTRY
MIDDLE SCHOOL
In terms of ion charges and chemical change, what is the difference between CuF(s) and CuF2(s)??
CHEMISTRY
HIGH SCHOOL
Is it possible for an object not to be in motion and still have force acting upon it?
CHEMISTRY
MIDDLE SCHOOL
Can a tank of oxygen gas ever be half empty? explain
CHEMISTRY
HIGH SCHOOL
How many joules are needed to warm 45.0 grams of water from 30.0 degrees C to 75.0 degrees C?
CHEMISTRY
HIGH SCHOOL
How many grams are in 238 moles of arsenic
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