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science 1 > Chemistry > Flashcards

Chemistry Flashcards

peridoic table, ect.

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1
Q

n0 equation

A

n0 = atomic mass - p+

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2
Q

what happens if you have a lot of n0

A

it does not change the charge (won’t make it + or -) it will make it heavier or lighter

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3
Q

What are the atoms and ion for BE

A

atom
p+=4
e- = 4

ion
p+=4
e-=2

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4
Q

what are the atoms and ion for F

A

atom
p+=9
e- = 9

ion
p+ = 9
e- = 10

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5
Q

what charge are atoms

A

zero

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6
Q

reactants (what you start with) turn into …

A

products

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7
Q

give an ex of an important equation (cellular respiration) and explain it

A

c6 h12 o6+o2 (reactants (energy)
->
co2 + h2o (products)

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8
Q

what are the two types of energy diagrams

A

exothermic and endothermic

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9
Q

give ex of reactants -> products

A
  1. eat apple, breathe oxygen ->
  2. candle burns (the candlewick and wax) and oxygen (in the air) -> products are carbon dioxide gas and water vapor.
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10
Q

explain the exothermic diagram and give an ex

A

starts with reactants then goes up bc of the activation energy(energy released) then goes drastically down to make the product

ex. humman eating apple (eating anything really)

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11
Q

explain and give examples of the things on an exothermic graph

A

reactants (x+y) = the product you start with (ex. apple)

activation energy = putting in energy to get it out ( ex. spending energy on chewing the apple to get the product - energy of the apple

product = end result (getting protein/energy from the apple

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12
Q

draw and label both graphs

A

look at notes to double check

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13
Q

energy realase ex

A

hot coca -> feel warm

candy-> sugar rush

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14
Q

does co2 have energy

A

no

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15
Q

what normaly uses the endothermic graph

A

plants NOT HUMANS

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16
Q

describe endothermic graph

A

reactants start at the bottom -> activation energy makes it go up -> product has more energy than reactants (energy absorbed below it

17
Q

ex of endothermic energy

A

plant making apple

ex. plant takes carbon + water (they don’t have any energy -> activate -> turn into sugar +oxygen

18
Q

catalyst meaning + ex

A

makes a reaction more efficently

ex. enzymes
spend money -> make money
use energy -> get energy back

19
Q

why/what makes water so important

A

bc of its shape

20
Q

draw water molecule + label

A

look at notes to double check

21
Q

explain charge of oxygen + H seperatly

A
  • oxygen is slighty negative bc of electrons
  • hydrogen is positive bc no elections (negative and postivies like each other (like magnets)
22
Q

polar meaning

A

top not same as the bottom - opposite charges on both sides

23
Q

draw ex of non polar atoms +label

A

check notes

24
Q

Solvent vs. Soulte

A

solvent
- something that dissolves smthn
ex. nail polish remover (dissolves nail polish)
ex. water dissolves food overnight

Solute
- gets dissolved
ex. nail polish
ex. leftover food
ex. Gatorade powder

25
Q

Solvent + Soulte = ?

A

solution

ex. coffee
gatorade

26
Q

why + what is the besst solvnet

A

water is the best solvent in the world because of its shape

27
Q

evaporation/freezing of water

A

water has the ability to change boiling + freezing temps

28
Q

specific heat

A

water has high specifc heat (hols heat and cold for a while

ex. water for tea/coca to cool

29
Q

Cohesion

A

Surface tension
ex. leaf wont go in water when dropped but rock does

30
Q

Adhesion (sticking to smthn)

A

water sticking to something
ex. penny experiment
rain on window
dew
sweat

31
Q

catalase equation

A

h2 + o2 -> o2 +h2o

32
Q

how to know if catalase is working

A

if you see bubbles

slow bubbles = catalase working slow
fast bubbles = catalase working fast

33
Q

ex of o2 +h2o

A

put on a cut
- water soltion -> on cut -> catalse -> white + bubbly
ex. good at cleaning
ex. swish in mouth never bad breath again bc kills bacteria?

34
Q

is h2 + o2 bad for you

A

isn’t bad if you ahve a normal amount

35
Q

what sometiems dittermines if something is good or bad for you

A

the amount you have determines that

36
Q

lipids function

A

help with moving, storing energy, regulate hormones, acting/structureal cell membranes.
Examples: avocado,

37
Q

carbohydrates function

A

provides eneryg

38
Q

Amino Acids

A

Function; body protein builds +, repairs body tissues, energy source, maintain healthy skin/hair,

science 1 (4 decks)

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