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Chemistry
Chemistry
Middle School
Sugar, C6H12O6, is made of carbon, hydrogen, and oxygen atoms. Sugar is (I WILL MAKE U BRAINLIESTA. a compound because it is made of two or more atoms chemically combined and its parts cannot be separated by physical meansB. a mixture because it is made of different kinds of atoms but they are not chemically combinedC. a solution because it dissolves when mixed with waterD.an element because it is a pure substance whose parts cannot be separated
Chemistry
College
According to the law of superposition, where would you find objects with an older relative age?
Chemistry
High School
when water changes state from a liquid to a solid is energy absorbed or lost?
Chemistry
High School
How could the combustibility of a substance influence how the substance is used?
Chemistry
College
A hawk swoops down and catches a squirrel. The squirrel provides energy for the hawk. What happens to the rest of the matter?
Chemistry
College
Chemistry pick two answers
Chemistry
High School
someone please i need help
Chemistry
High School
Which pair of elements will have the same number of valence numbers A- lithium and barium B- gallium and germanium C- tellurium and polonium D- iondine and xenon Mark as brainlist :)
Chemistry
College
If you've ever shifted realities, How long did it take you?
Chemistry
High School
What is the charge of an Pb atom with 81 electrons?
Chemistry
High School
Which metal is most likely to form more than one kind of positively charged ion?A.SodiumB.BariumC.NickelD.Magnesium
Chemistry
College
Which properties do not change the composition of a substance? neither chemical nor physical properties physical properties chemical properties chemical and physical properties
Chemistry
College
8 is subtracted from the square of a number.
Chemistry
College
75 g of a metal is heated to a temperature of 99C. The metal is then placed in a calorimeter containing 145 g of water at a temperature of 25C. The temperature of the water in the calorimeter increase to a final temperature of 28C. What is the specific heat of the metal?
Chemistry
High School
What kind of reaction happens when two compounds switch elements? Apex
Chemistry
High School
Question 1 (4 points)Which of the following is/are true about Van der Waals forces? A. They are very weakB. They are a a type of momentary dipole C. Both 1 and 2 are correctD. neither 1 nor 2 is correct
Chemistry
High School
Help fast I have a few left
Chemistry
College
how much valence electrons does aluminum have
Chemistry
College
While looking at calcium (Ca) on the periodic table, a student needs to find an element with a greater atomic mass inthe same period. Where should the student look?O directly upO directly downO directly to the leftO directly to the right
Chemistry
High School
The unit for force is kg m/s.True Or false?
Chemistry
High School
Which tools can be used to measure the volume of a substance? Select the two correct answers.a. tape measureb. digital balance c. measuring cupd. graduated cylinder
Chemistry
College
Help asap!!!!What are elements in the tall columns of the periodic table called?A. Representative elementsB. Valence elementsC. Atomic elementsD. Period elements
Chemistry
College
Can someone please help?
Chemistry
College
Why is the primary standard, KHP, used in the determination of the molar mass of an acid?
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