Chemistry
Rearranged.
The amplitude of a wave determines the ________ of the wave. (NOT volume)
ENERGY
DNA is made up of ________
Genes
How many atoms of H in the products side of this reaction? 2H2 + O2 → 2H2O
4
The moving pieces of lithosphere (crust) that converge and diverge and called _________ _________.
Tectonic Plates.
3 Oxygen atoms react with 6 Nitrogen atoms. How many Nitrogen atoms will be in the products?
6.
Why can't there be sound in space?
Sound is a vibration, meaning it needs a medium to travel through.
You get 23 __________ from each parent.
Chromosomes
If you were to go surfing, what kind of amplitude and frequency would you want the wave to have for a successful ride?
High amplitude (energy) low frequency.
Where is new crust created?
Mid Ocean Ridges.
List the reactants and the products (NOT the amount)
2H₂ + O₂ --> 2H₂O
Reactants: H₂ and O₂
Products: H₂O
If the total number of each type of atom is conserved, which two compounds are most likely to be produced from the reaction?
HCl + NaOH → ______ + _______
A. H2O
B. ClO2
C. HCl2
D. NaCl
E. Na2O
H2O + NaCl
Sexual Reproduction means...
If you were to make a model of liquid particles turning into a solid, describe how it would LOOK.
The liquid particles would be moving, flowing, but not with a lot of energy. By cooling them down it would make them solid, all still and packed into place with little to no movement.
Where is old crust destroyed?
At subduction zones.
Put the correct number next to the elements to show how many will be there in the products.
HCl + NaOH → __H __Cl __ Na __O
(Reactants --> Products)
HCl + NaOH →2H 1Cl 1Na 1O
If an object is NOT moving, explain how Newton's 3rd law is acting on it.
The forces are equal and opposite, so the object is staying in place.
Asexual reproduction is...
ONE parent reproducing and making a clone of itself.
Newton's THIRD Law: For every action there's..
an EQUAL and OPPOSITE reaction.
Meaning, equal amounts of force in opposite directions.
What happens when 2 pieces of crust move AWAY from each other?
Magma from the mantle rises up to fill that space, creating new crust.
Choose the statement that BEST compares the mass of the products to the mass of the reactants.
A. The number of hydrogen atoms and oxygen atoms changes during the reaction, so the mass changes during the reaction.
B. The number of hydrogen atoms and oxygen atoms changes during the reaction, but the mass does not change during the reaction.
C. The number of hydrogen atoms and oxygen atoms is the same before and after the reaction, but the mass changes during the reaction.
D. The number of hydrogen atoms and oxygen atoms is the same before and after the reaction, so the mass does not change during the reaction.
D. The number of hydrogen atoms and oxygen atoms is the same before and after the reaction, so the mass does not change during the reaction.
Which of the following BEST describes a chemical reaction?
A. Atoms entering a reaction can disappear, forming new compounds that have the same chemical properties.
B. Atoms can be rearranged into new molecules, forming compounds that may have different chemical properties.
C. New atoms can be produced from the reaction, forming new compounds that have different chemical properties.
D. Atoms can be rearranged into new molecules, forming compounds that always have the same chemical properties.
B. Atoms can be rearranged into new molecules, forming compounds that may have different chemical properties.
Which two statements are true for both types of reproduction?
A. Chromosomes in offspring have unique combinations.
B. Genes carry the genetic information needed for reproduction.
C. Offspring receive the same genetic information as the parent.
D. Offspring and parents have the same number of chromosomes.
E. Offspring have half the number of chromosomes that the parents have.
B & D:
Genes carry the genetic information needed for reproduction.
and
Offspring and parents have the same number of chromosomes.
Surfers usually prefer wave conditions with longer wavelengths. The equation to calculate wavelength is shown.
λ=ʋ /ƒ
In the equation, λ = wavelength, ʋ = wave speed, and ƒ= frequency. Which wave conditions provide the longest wavelength?
A. A wave speed of 10 m/s and frequency of 10 Hertz.
B. A wave speed of 15 m/s and frequency of 1 Hertz.
C. A wave speed of 25 m/s and frequency of 5 Hertz.
D. A wave speed of 30 m/s and frequency of 15 Hertz.
A wave speed of 15 m/s and frequency of 1 Hertz.
(Wavelength = 15 meters)
What happens when the Ocean crust hits the Continent crust?
The heavier crust slides under, destroying old crust (and creating trenches!)