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Chemistry
Chemistry
High School
How many elements make up Sodium Bicarbonate?
Chemistry
High School
How do the rock cycle and the carbon cycle relate to each other?
Chemistry
High School
Which formula is an ionic compound?A.NaFB.N2C.NO2D.CO2FIRST ACCUAL ANSWER GETS BRAINLIST :)
Chemistry
High School
How does an increase in thermal energy influence the particles of the reactants in a chemical reaction?Group of answer choicesit increases the chance of particles being properly aligned by increasing the number of collisionsit decreases the number of particle collisionsit increases the number of collisions by speeding up the particle motion
Chemistry
High School
Use a sentence to describe how the mantle moves. Use another sentence to describe why the mantle moves this way.
Chemistry
High School
2A train travels 25 km in 0.5 hrs. How fast is the train going?
Chemistry
College
A dog has a mass of 19 kg. What is the mass of the dog in grams,expressed in scientific notation
Chemistry
High School
please answer its due in 10 minutes teacher just assigned it 5 minutes ago
Chemistry
College
which statement differentiates between prokaryotic cells and eukaryotic cells?A.Eukaryotic cells have DNA: prokaryotic cells do not.B. Prokaryotic cells have DNA: eukaryotic cells do not.C. Eukaryotic cells have nuclei: prokaryotic cells do not.D. Prokaryotic cells have nuclei: eukaryotic cells do not.
Chemistry
High School
What is a Testable question I can use for tennis balls
Chemistry
College
Statement 1: The reaction follows the mass energy equation E= mc". Statement 2: A large amount of energy is produced during the reaction. Which statement(s) are true for both fusion and fission reactions? (1 point) a. Only 1 b. Only 2 c. Both 1 and 2 d. Neither 1 nor 2
Chemistry
High School
*PLEASE HELP*How do carbon radiometric dating utilize isotopes?
Chemistry
High School
what are the different kind of nitrogen bases
Chemistry
High School
DNA and RNA have base pairs that form hydrogen bonds with complementary bases. The DNA molecule shown contains adenine, cytosine, guanine, and thymine. Which base does RNA not have?A) Thymine B) Adenine C) Guanine D) Cytosine
Chemistry
High School
How does the atomic mass of the atom change when an electron is added or removed?
Chemistry
High School
How many moles of potassium are there in 1 kg of potassium?
Chemistry
College
297.85Question 24 ptsIf a sample of gas occupies 23.5 mL at 315 K and 14.8 atm of pressure, what volume will it occupy at 415 K and12.3 atm?Give your volume in ml, but do not include the units in the answer. Do not use scientific notation.Question 34 pts
Chemistry
College
Scientific knowledge is open to change as new information is discovered. Which of the following would NOT be a result of new scientific knowledge?AScientists discover that a type of fungus on this log does not require oxygen for absorption and change the classification system. BScientists publish an article that mentions the historic decline in the population of blue stain fungi. CScientists classify a recently discovered bacterium living on this log using generally accepted naming procedures. DScientists discover a bacterium living on this log that is multicellular and revise their classification
Chemistry
High School
I need help what is the Find the value of x
Chemistry
High School
(fill the blank)The sex cells produced through meiosis each have ___. A. half of the chromosome pairs from the original cellB. a single chromosome from the original cellC. pairs of chromosomes identical to the original cellD. one chromosome from each pair in the original cell
Chemistry
High School
compare and contrast gymnosperms and angiosperms
Chemistry
College
Which of the following is not a size-independent property of matter?O volumeO boiling pointO state of matterO conductivity
Chemistry
High School
The solution starts with increased ________________
Chemistry
College
it supports respiration.
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