Counting Atoms
How many elements are in NaCHO
4
H2 + O=H2O
What side is the reactant side?
Left side
STRATEGY: LABEL RAP
REATANTS ARROW PRODUCT!!!
What are the Units for Force
Newtons
What is the difference between biotic and abiotic?
Biotic is living
Abiotic is not living
What is the difference between a physical and chemical change?
Physical change:size, shape, state of matter
Chemical change: creates a something new that changed the chemical components of something.
Subscript
H2+O==H2O
How many oxygen are their in the reactants side?
Oxygen =1
one oxygen on the RIGHT SIDE!!
What are the Unit for Acceleration?
m/s
m/s2
True or False
Biodiversity helps ensure the sustainability of an ecosystem.
True
What is the strategy used to identify chemical changes?List chemical changes
City Girls Love Their Phones
Color, Gas, Light, Temperature, Precipitant
How many atoms are there in the chemical formula for Sodium(Na)
2Na3(CHO2)3
6
H2 + O==H2O
How many total atoms are on the product side?
H=2
O=1
Total is 3
What is the acceleration for an object that has a force of 5N at 2.5kg?
2m/s
Describe the levels of an energy pyramid.
Base level is producers
Primary consumers are herbivores like bugs and rabbits.
Secondary consumers=omnivores that eat plants and animals, example is snakes,snakes eat rabbits
Tertiary are carnivores, eat meat like fox, lion
Describe metals characteristics and location on periodic table.
malleable, ductile, shiny, hard, good conductors, left side of periodic table.
How many atoms are there 2Na3(CHO2)3 for the element oxygen?
12
What does the law of conservation state:
Matter can not be created or destroyed, only rearranged!
If an object is being pulled to the left with 15N of force and the same object is being pulled to the right with 3N of force, what is the direction and force the object will move?
In the life cycle of a star, what is the first and last stage?
Nebula=nursey where stars are born of dust and gas
average mass star dies as a black dwarf
high mass stars die as a neutron star or black hole.
Describe Non metals and location on Periodic table.
dull, brittle, poor conductors of heat and electricity, right side of periodic table.
How many total atoms are in the chemical formula
2Na3(CHO2)3
Na=2x3=6
C=2x1x3=6
H=2x1x3=6
O=2x2x3=12
Total=30
What are Newtons 3 LAWS?
1.Law of inertia
2. Force=mass x acceleration
3. Action-Reaction
If an object has a mass of 30kg, and is being pushed to the right at 25N and friction is affecting the movement with a force of 5N what is the total force and direction.
20N Right
(friction works in the opposite direction that the object is moving, so you would subtract the forces)
What is the stage our SUN would be classified as for HR diagrams.
Main sequence
Describe the three types of tectonic plates and each of their crustal features.
Convergent=collide, mountains, islands, volcanoes, subduction occurs here
Divergent=move away from each other, mid ocean ridge, valley
Transform=slip and slide, faults and earthquakes.