Matter
What state of matter typically retains its shape and the particles are tightly compressed?
Solid
What is a sign of a chemical reaction?
Light produced, sound produced, temperature chachange in tastenge, change in smell, change in colour.
Acids (like lemon juice) taste:
Sour
The element with the symbol H
Hydrogen
The 4 school rules are
Learn, do your best, respect self and others, respect our college
What state of matter conforms to the shape of the container or leaves the container? The particles are loosely packed and have the ability to move around
Gas
In a chemical reaction equation what side of the arrow does the reactant and product go on.
Reactant = left side
Product = right side
What colour does cabbage indicator turn in a substance that is pH4?
Mauve (?)
(pinky
purple)
The element with the symbol C
Carbon
The measurement of hotness is called
Temperature
What state of matter conforms to the shape of the container? The particles are tightly compressed but have the ability to move around
Liquid
What causes a chemical reaction?
A chemical reaction happens when substances interact in such a way that their atoms rearrange to form new substances with different properties.
A substance with a pH of 3 is an : (acid or base)
Acidic / an acid
The element with the symbol Na
Sodium
The name for the transition from a gas to a liquid
Condensation
In order for something to be matter it must have these two components
Has mass and take up space.
What happens to heat in an exothermic reaction?
It exits/leaves/is released by the system and feels hot.
A substance with a pH of 7 is:
Neutral OR 'pure water'
The element with the symbol Au
Gold
What does DNA stand for?
Deoxyribonucleic acid
The law of conservation of matter states:
Matter (and mass) cannot be created or destroyed, so all atoms in the reactants must be present in the products.
Explain what an endothermic reaction is
A reaction that feels cold because it has to absorb heat energy from the environment for there to be enough energy for the reaction
Bases have more of what type of ion?
Hydroxide / OH-
The element with the symbol Pb
Lead
MRSGREN in an acronym used for the 7 characteristics of living things. What do the letters stand for?
•(Any order) Growth
Movement Reproduction
Respiration (gas Excretion
exchange/breathing) Nutrition (needs food)
Sensitivity