Quiz about Science Bowl 24-25

Question 1

What is the chemical symbol for "gold"?

Accepted Answer

Au

Answer

G

Answer

O

Answer

Gd

Question 2

If we are given 100 grams of sodium, what would the equivalent be in kilograms?

Accepted Answer

1

Answer

1000

Answer

10

Answer

.01

Question 3

The common name for C₆H₁₂O₆?

Accepted Answer

sugar

Answer

air

Answer

calcium

Answer

water

Question 4

In the event of a chemical reaction, the overall mass...

Accepted Answer

stays the same

Answer

increases every time

Answer

decreases

Answer

only decreases when gasses are involved

Question 5

When solid sugar is added to liquid water, the sugar...

Accepted Answer

dissolves into the water

Answer

gets eaten by the water

Answer

evaporates into air

Answer

encases oxygen being released from the solution

Question 6

When mixing liquids, the ___________ is the substance mixed in.

Accepted Answer

solute

Answer

solvent

Answer

solution

Answer

product

Question 7

What elements make up acetic acid (vinegar) C₂H₄O₂?

Accepted Answer

carbon, oxygen, hydrogen

Answer

acid, carbon, oxygen, hydrogen

Answer

carbon, acetic, oxygen, hydrogen

Answer

acetic acid

Question 8

Are new elements created when a chemical reaction happens?

Accepted Answer

No, never

Answer

Yes, always

Answer

Sometimes, if oxygen is involved

Answer

Most times, due to the use of heat

Question 9

Are new substances created when a chemical reaction happens?

Accepted Answer

Most times, due to the reaction

Answer

Yes, always

Answer

Sometimes, if oxygen is involved

Answer

No, never

Question 10

The number of elements will ______ after a chemical reaction has occurred.

Accepted Answer

Stay the same

Answer

Increase

Answer

Decrease

Answer

Drop to zero

Question 11

What elements make up sodium bicarbonate (baking soda) NaHCO₃?

Accepted Answer

sodium, hydrogen, carbon, oxygen

Answer

sodium, carbon

Answer

sodium, hydrogen, bicarbon, oxygenate

Answer

sodium, bicarbon, oxtgenate

Question 12

Once a reaction happens, the new substance can be referred to as a _____

Accepted Answer

solution

Answer

solvent

Answer

solute

Answer

product

Question 13

The Law of Conservation of Mass states that: Matter ...

Accepted Answer

is neither created nor destroyed

Answer

is always created

Answer

is constantly destroyed

Answer

is constantly created and then destroyed

Question 14

The number of components will _____ than the number of products.

Accepted Answer

all above are possible outcomes

Answer

increase

Answer

decrease

Answer

stay the same

Question 15

What makes up all things visible in the known universe?

Accepted Answer

matter

Answer

dark energy

Answer

space

Answer

solids

Question 16

What cannot be created or destroyed, it can only change forms?

Accepted Answer

matter

Answer

heat

Answer

electric

Answer

gravity

Question 17

When a substance changes from a solid to a liquid, that is an example of _____ change.

Accepted Answer

physical

Answer

chemical

Answer

nocturnal

Answer

conservation

Question 18

When carbon dioxide and water combine to create sugar and oxygen, it is considered a _____ change.

Accepted Answer

physical

Answer

chemical

Answer

nocturnal

Answer

conservation

Question 19

Looking at the chemical equation for photosynthesis, how many atoms of carbon do we have on each side of the equation, 6CO₂+6H₂O----->C₆H₁₂O₆+6O₂

Accepted Answer

6

Answer

12

Answer

36

Answer

0

Question 20

When an animal eats, the food is broken down and used to power the body. The matter that makes up the food...

Accepted Answer

Both

Answer

Becomes the part of the body

Answer

Exits the body

Answer

Neither

Question 21

Matter cycles through the universe...

Accepted Answer

in different forms

Answer

as a solid

Answer

as a liquid

Answer

as a solid and a liquid only

Question 22

Normal matter makes up _____% of the universe.

Accepted Answer

5

Answer

25

Answer

70

Answer

100

Question 23

In a reaction, what do you do with the mass of the container that the substances are in?

Accepted Answer

remove it from the total

Answer

add it in most times

Answer

count it before, but not after

Answer

count it in the before and after

Question 24

The rock cycle _____ follows the law of conservation of matter.

Accepted Answer

always

Answer

mostly

Answer

sometimes doesn't

Answer

never

Question 25

The water cycle _____ follows the Law of Conservation of matter.

Accepted Answer

always

Answer

mostly

Answer

sometimes doesn't

Answer

never

Question 26

When mixing substances, the _____ is the substance that absorbs the other substances.

Accepted Answer

solvent

Answer

solute

Answer

solution

Answer

product

Question 27

When a substance is arranged in a repeating pattern and is held firmly in place, but can vibrate in a limited area, it's state of matter would be...

Accepted Answer

solid

Answer

liquid

Answer

gas

Answer

plasms

Question 28

When a substance has minimal attractive forces, and fills any open space, its state of matter is _____.

Accepted Answer

gas

Answer

solid

Answer

liquid

Answer

plasma

Question 29

When methane (CH₄) reacts with oxygen (O₂), it yields carbon dioxide (CO₂) and water. How many carbon dioxide and water molecules would be created?

Accepted Answer

1 carbon dioxide and 2 water

Answer

2 carbon dioxide and 1 water

Answer

2 carbon dioxide and 2 water

Answer

1 carbon dioxide and 1 water

Question 30

HCl reacting with NaOH would yield what possible results?

Accepted Answer

H₂O, NaCl

Answer

H₂O, Cl₂, Na

Answer

Na₃, Cl₃, H₂O

Answer

H₃Cl, NaO

Question 31

What is the chemical symbol for sodium?

Accepted Answer

Na

Answer

S

Answer

Sa

Answer

Um

Question 32

How many water atoms could be created from 8 oxygen atoms, 10 hydrogen atoms, and 4 chlorine atoms?

Accepted Answer

5

Answer

8

Answer

10

Answer

18

Question 33

When a substance flows easily past each other and takes the shape of the container, its state of matter would be _____.

Accepted Answer

liquid

Answer

solid

Answer

gas

Answer

plasma

Question 34

At the beginning of a chemical reaction, you have 235 oxygen atoms. At the end of the experiment, you should have _____.

Accepted Answer

the same amount of oxygen atoms

Answer

more oxygen atoms

Answer

less oxygen atoms

Answer

no oxygen atoms, they were all used up

Question 35

While making popsicles, you use 10 grams of strawberries, and 50 grams of yogurt, stick a popsicle stick in it, and then let it freeze. When you weight it, you notice the popsicle weighs 61.3 grams, when it should weigh 60 grams. What happened?

Accepted Answer

You did not account for the mass of the popsicle stick.

Answer

Gravity pulls more on a solid, increasing the weight.

Answer

The strawberries condensed creating more mass.

Answer

Yogurt adds mass when it is frozen.

Question 36

A cat with a mass of 4,000 grams gets a haircut and rinse. When measuring its mass after, it weighs 4,200 grams. How is this possible?

Accepted Answer

The water left on it adds 200 grams

Answer

It was laying down, so it increased the mass by 200 grams

Answer

They took a collar off of the cat that weighed 200 grams

Answer

It was later in the day, so gravity increased its mass

Question 37

How many carbon dioxide atoms could be created from 8 oxygen and 3 carbon atoms?

Accepted Answer

3

Answer

5

Answer

8

Answer

11

Question 38

Which element is balanced in the unbalanced equation: CH₄ + O₂ ---> CO₂ + H₂O ?

Accepted Answer

carbon

Answer

hydrogen

Answer

oxygen

Answer

two

Question 39

While conducting an experiment, 40 grams of ice is melted onto water. The end results is 38 grams of water. Which explanation is illogical?

Accepted Answer

When water is condensed the mass is greater resulting in a loss of mass when it turns into liquid form.

Answer

Some of the water could have sweated through the cup.

Answer

The lost two grams were gases trapped in the ice and were released into the atmosphere.

Answer

The water could have been spilled or lost when transferring to measure the mass.

Question 40

The following equation is balanced: 2HCl + 2Na = 2NaCl+H₂

_{Why isn't there a "2" coefficient by the Hydrogen product?}

Accepted Answer

The subscript means there are two hydrogen atoms.

Answer

You do not need two hydrogens to make the equations balanced

Answer

You have to account for the other hydrogens in the product.

Answer

Hydrogen is exempt from the Law of Conservation.

Question 41

When looking at the products of a chemical reaction ...

Accepted Answer

the number of atoms must be equal on each side of the element

Answer

the number of products must be equal (2 reactants, 2 products)

Answer

there must be hydrogen in the answer since it's a basic element

Answer

must experience heat to create new products

Question 42

How would you balance the following equation: Na + Cl₂ --> NaCl

Accepted Answer

2Na + Cl₂ --> 2NaCl

Answer

Na + Cl₂ --> 2NaCl

Answer

Na + Cl₂ --> Na2Cl

Answer

2Na + Cl₂ --> NaCl

Question 43

Why is it important for a chemical equation to be balanced?

Accepted Answer

to ensure the same amount of atoms are present before and after the reaction

Answer

to keep explosions from happening, which could cause unaccounted atom loss

Answer

so that nothing iodized incorrectly

Answer

so that the subscripts add up to the total coefficients

Question 44

When balancing a chemical reaction...

Accepted Answer

you can add coefficients to molecules

Answer

you can add subscript to molecules

Answer

you can subtract the subscripts to molecules

Answer

you can add coefficients and subscripts to molecules

Question 45

If 10 grams of NaOH reacts with 12 grams of HCl producing 8 grams of NaCl, how many grams of H₂O are produced?

Accepted Answer

14 grams

Answer

10 grams

Answer

12 grams

Answer

18 grams

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