Science 4.14.3 combo

A chemical reaction in which one substance breaks up into two or more new substances.

Decomposition reaction

valence electrons

Electrons in the outermost shell of an atom

correct side

Flip

How do we get Chlorine and Sodium into our bodies?

From eating salt (sodium chloride)

balanced

Is this equation balanced or unbalanced?

unbalanced

Is this equation balanced or unbalanced?

balanced

Is this formula balanced or unbalanced?

suspended

Particles of a substance that are floating on top of a liquid

________ forms part of the structure of DNA and RNA which is why it is needed for all known forms of life.

Phosphorous

Lewis Dot Diagrams

A simple system of element abbreviations and dots which represent the element and its valence electrons

adhesion

The attraction between different molecules which causes them to cling to each other

cohesion

The attraction between like molecules; causes water to form drops

bond

The force that holds atoms together to form molecules

reactants

The substances on the right side of an equation are called the ___.

ecology

a branch of biology that studies the relationship of living organisms to their environment and to each other

hydroxide

a chemical compound containing oxygen and hydrogen

Decomposition Reaction

a chemical reaction in which one substance breaks up into two or more new substances

litmus paper

a coloring substance added to paper which is used as a test because it turns red when it comes in contact wit an acid and blue when it comes in contact with an alkaline or base

litmus paper

a coloring substance added to paper which is used as a test because it turns red when it comes in contact with an acid and blue when it comes in contact with an alkaline or base

acid

a compound that gives up hydrogen ions in water

base

a compound that increases hydroxide ions when dissolved in water also know as an alkaline

alloy

a metallic substance formed when another metal or nonmetal is added to increase its strength, malleability, or heat resistance

monitoring site

a place where levels of a substance are scientifically measured over a period of time

Single Replacement Reaction

a reaction in which an active metal displaces a less active metal or hydrogen from a compound solution (or a nonmetal replaces a nonmetal from a compound in solution)

Synthesis Reaction

a reaction in which two or more substances combine to form a new substance

Combustion Reaction

a reaction when oxygen combines with another compound to form water and carbon dioxide. (burning stuff)

vulcanologist

a scientist who studies volcanoes

indicator

a substance that can change color to show the degree of acidity or alkaline (base) of another substance

What can be done to keep the metallic atoms from moving too easily?

add atoms of different sizes

When balancing equations in math or anything else, if you have to add something to one side you must remember to __________________.

add the same thing to the other side

eco-friendly

an attitude that is favorable to the relationships of living things and their environments

cation

an element that has given away its valence electrons and become positively charged

anion

an element that has taken valence electrons and become negatively charged

artifact

an object used in the daily life of an ancient culture

sphinx

ancient Egyptian mythological creature

A nonmetal that takes electrons and gains a negative charge is called a/an ___.

anion

steel

any alloy of iron mixed with a small amount of carbon to increase its strength or malleability

When a metal gives away its valence electrons, it becomes positively charged and is called a/an ___.

cation

Cohesion is caused by a difference of ___.

charge

A ___________ is a series of chemical symbols and formulas that chemists use to describe chemical reactions. (Hint: The answer is two words)

chemical equation

The number in front of the molecule that tells you how many molecules you are working with is called the ___.

coefficient

The property that mercury does not have that water does have is being

cohesive

The property that water has but alcohol does not have is being

cohesive

Which of these is a good example of capillary action?

colored water traveling up a celery stalk

A _________________ reaction is when oxygen combines with another compound to form water and carbon dioxide.

combustion

What is a substance made up of two or more elements that is joined together by a chemical bond?

compound

flip

correct side

You may use your periodic table for this question. Propanol (C_3H_8OC3H8O) a(n) ______ molecule?

covalent

You may use your periodic table for this question. Water (H_2OH2O) is a/an ________ compound.

covalent

You may use your periodic table for this question. Sulfur dioxide (SO_2SO2) a ____________ compound?

covalent

Two ionic compounds reacting in a solution to form two new compounds, one of which is insoluble is called a _______________ reaction.

double replacement

The property of metals that is being demonstrated when a metal is drawn out into a wire is called its ___.

ductility

octet

eight electrons in the outermost or valence shell of an atom

Covalent compounds share [answer].

electrons

Nonmetals take __________ from the metals they are attracted to.

electrons

The amount of the mass of the bubblegum should be stated in ___.

grams

neutral

having no marked characteristics, neither an acid or a base

Go back to science 4.14.3

https://luoa.instructure.com/courses/1627674/quizzes/2754293

You may use your periodic table for this question. Copper fluoride (CuF_2CuF2) an ___________ molecule.

ionic

You may use your periodic table for this question. Does sodium sulphate (NaSO_4NaSO4) contain ionic or covalent bonds

ionic bonds

In the law of conservation of mass, matter is never [answer].

lost or gained

When metal is hit by a hammer and it is flattened, it is demonstrating the property of ___.

malleablity

In metallic bonding, there must be _______ atoms together sharing electrons.

many

When substances with covalent bonds dissolve, what break apart?

molecules

essential

necessary for the existence or continuance of something, indispensable

Another name for the eight electrons in the outermost or valence shell of an atom is ___.

octet

What are the big 5 elements needed in the body?

oxygen, hydrogen, iodine, carbon, phosphorus, and calcium

When two metal atoms want to become more stable and there are no nonmetals around to take the extra electrons, the metals play a game like ___. (Think about one of the videos you watched in the lesson associated with these questions.)

ping pong

A molecule of water can be described as _____.

polar

The substances or molecules in the left side of the equation are called the ___.

products

acid rain

rain that has a high concentration of nitric and/or sulfuric acids resulting from air pollution or natural sources

In the law of conservation of mass, matter can be [answer].

rearranged

Byzantine

referring to the Byzantine Empire which was formed by Constantine in 330 A.D. and lasted until 1453 A.D.

Most metals look silver because they ___.

reflect all wave lengths of light

Law of electric charges states that the like charges will _________ each other and unlike charges will ________ each other.

repel, attract

The floating electrons form this between the metallic atoms.

sea of mobile electrons

A reaction in which an active metal displaces a less active metal or hydrogen from a compound solution is known as a ______________.

single replacement reaction

anomaly

something different from the usual or normal

ductile

something that can be drawn out into wire without breaking

malleability

something that can be formed or shaped into specific designs without breaking

malleable

something that can be shaped or formed into specific designs

What part of a chemical equation is never changed?

subscript

A substance floating on the top of a liquid is [answer] on the liquid.

suspended

A reaction in which two or more substances combine to form a new substance is called a ______________.

synthesis reaction

Antoine Lavoisier made money to support his scientific studies by being a [answer].

tax collector

ziggurat

temple built by ancient Babylonians, Assyrians, and Sumerians usually in a the form of a pyramid with a series of receding stages or terraces

brimstone

the Medieval word for sulfur

conductivity

the ability of a material to transmit heat, electricity or sound

conductivity

the ability of a material to transmit heat, electricity, or sound

electronegativity

the measure of how badly an atom wants to add electrons

evaporation

to change from a liquid state to a gas

contaminate

to make impure, pollute

tempering

treating steel with a heating and cooling process to make it harder and more elastic

Double Displacement Reaction

two ionic compounds reacting in a solution to form two new compounds, one of which is insoluble