science final 😩😩

what family is period 7 outset of main table

Actinides

What is the chemical formula for aluminum nitride

AlN

What is an isotope

Atoms of the same element that have different numbers of neutrons

What type of bonding used prefixes in the name

Covalent

what's the chemical formula for cesium sulfide

CsS

What's the chemical formula for dihydrogen monoxide

H2O

What family is group 17

Halogens

independent variable

a variable (x) who's value does not depend on that of another (the cause in a cause and effect scenerio)

dependent variable

a variable (y) who's value depends on another (the effect in a cause and effect scenerio)

what family is group 1

alkali metals

What family is group 2

alkaline earth metals

newton's first law

an object in motion will stay in motion unless acted on by an outside force

Is oxygen a cation or anion?

anion (-2)

What element is group 15, period 6

bismuth

float

buoyancy > gravity

Is potassium a cation or anion?

cation (+1)

give the type and balance the equation: ___C6H12 + ___O2 --> ___CO2 + ___H2O

combustion 1C6H12 + 9O2 --> 6CO2 + 6H2O

what's H2O? element compound homogeneous mix heterogeneous mix

compound

what type of bond will phosphorus and oxygen make

covalent

prefix for 10

deca

prefix for 2

di

give the type and balance the equation: ___NaBr + ___Ca(OH)2 —> ___ CaBr2 + ___NaOH

double replacement

find the net force : (pretend this is in diagram form) left 8N up 2N right 8N down 5N

down 3N

how many electrons, protons, and neutrons will an atom of arsenic-77 have

electrons- 33 protons- 33 neutrons- 44

how many electrons, protons, and neutrons will an ion of barium-136 have?

electrons- 54 protons- 56 neutrons- 80

what's carbon? element compound homogeneous mix heterogeneous mix

element

describe what happens at the molecular level when H2O changes from steam to liquid water to ice

energy slows down, temp decreases, and IM forces increase

newton's second law

f = m x a

newton's third law

for every action there is an equal and opposite reaction

three states of matter from most compressible to least compressible

gas -> liquid -> solid

list all types of potential energy with examples

gravitational - a car parked at the top of a hill chemical - charged battery nuclear - nuclear fission elastic - stretched rubber band electrical - a TV before it is turned on

non-contanct forces

gravitational force, magnetic force, nuclear force, and electrostatic force

sink

gravity > buoyancy

prefix for 7

hepta

what's iced coffee? element compound homogeneous mix heterogeneous mix

heterogeneous mix

prefix for 6

hexa

difference between heterogeneous and homogeneous mixtures

homogeneous is unified while heterogeneous is obviously separate substances

what's brass? element compound homogeneous mix heterogeneous mix

homogeneous mix

Where are neutrons located?

inside the nucleus

Where are protons located?

inside the nucleus

what type of bond will calcium and iodine make

ionic

Group 1 will ___ valence electrons and make a ____ charge called a ____

lose, positive, catiion

prefix for 1

mono

What family is group 18

noble gases

prefix for 9

nona

an ionic bond is

nonmetal and metal

A covalent bond is

nonmetal and nonmetal

contact forces

normal force, spring force, applied force, and tension force

atomic number is equal to

number of protons

prefix for 8

octa

the prefix mono is used

only on the second element

Where are electrons located?

outside the nucleus

prefix for 5

penta

four states of matter from highest molecule speed to lowest

plasma, gas, liquid, solid

precision vs accuracy

precision is how close the measurements are to each other while accuracy is how close a measurement is to the true value

The mass number is equal to

protons + neutrons

general order of the scientific method

question, research, hypothesis, experiment, data/analysis, conclusion

inertia

a tendency to do nothing or remain unchanged

Charge for proton

+1

Magnesium will make what charge

+2

what charge will calcium make

+2

What charge will bromine make

-1

charge for an electron

-1

Phosphorus will make what charge

-3

Charge for neutron

0

How many valence electrons does hydrogen have

1

significant figures rules

1. all nonzero numbers are significant 2. when a zero falls between two nonzero numbers, that zero is significant 3. leading zeroes are NOT significant 4. trailing zeroes to the right of a decimal are significant 5. trailing zeroes in a whole number with a decimal are significant 6. trailing zeroes in a whole number with no decimals are not significant 7. numbers in measurements are all significant 8. in scientific notation, the entire first number is significant

How many atoms of H are in 5Fe(CH5)2

10

give the correct, rounded answer 45.78 - 23.3 - 12

10

find the missing force: (pretend this is in diagram form) total FNet: right 6N left 7N up 1N down 1N right ??

13N

How many atoms of C are in Fe(CH5)2

2

how many valence electrons does magnesium have

2

How many atoms of Fe are in 3Fe(CH5)2

3

How many valence electrons does arsenic have

5

find the missing force: (pretend this is in diagram form) total FNet: up 2N left: 4N right: 4N down: 3N up: ??

5N

give the correct, rounded answer 29.00/0.45

64

How many valence electrons does radon have

8

What family is period 6 outset of main table

Lanthanides

What's the chemical name for LiF3

Lithium Fluoride

What element is period 5, group 5

Niobium

what's the chemical name for NO

Nitrogen Monoxide

is the scientific method a linear process?

No. Based on your results, you must either modify your hypothesis or replicate your results through further experimentation.

What is the chemical formula for hexaphosphorus noniodide

P6I9

What is the chemical name for Na2O

Sodium Oxide

What family is group 3-12

Transition metals

what's the chemical name for S3Br8

Trisulfur Octabromide

constant

a quantity that does not change

Compare and contrast the density and buoyancy of seawater vs freshwater

seawater is denser than freshwater objects in salt water are more buoyant than objects in fresh water

give the type and balance the equation: ___NH3 + ___I2 —> ___N2I6 + ___H2

single replacement 4NH3 + 6I2 —> 2N2I6 + 6H2

four states of matter from highest IM forces to least IM forces

solid -> liquid -> gas -> plasma

give the type and balance the equation: ___H2O + ___SO3 —> ___H2SO4

synthesis 1H2O + 1SO3 —> 1H2SO4

prefix for 4

tetra

experimental group

the group that receives the treatment/participates in the experiment

prefix for 3

tri

find the net force : (pretend this is in diagram form) up 19N down 5N

up 14N

Buoyancy is defined as the __________ force from a _________ onto an object

upward, solid

control group

used as a benchmark to compare back to

in an experiment, should there always be a control group?

yes. without a control group, it's harder to be certain that the outcome was caused by the experimental treatment and not by other variables