Chemistry Middle School

If a light bulb goes out on a PARALLEL CIRCUIT all of the bulbs will go out.

a. True

b. False

Answers

Answer 1

Answer:this answer is true your welcome

Answer 2

Answer:

False

Explanation:

Related Questions

This equation shows the neutralization of sodium hydroxide and hydrochloric acid:

NaOH + HCl → H2O + NaCl

The reactant side of the chemical equation has (1/2/3/4) atom(s) each of sodium, oxygen, and chlorine. The reactant side also has (1/2/3/4) hydrogen atom(s). Count the numbers and kinds of atoms on the product side of the equation. The numbers and kinds of atoms on both sides of the chemical equation are (the same/not the same). So, this chemical equation is (balanced/not balanced) .

Answers

There are the same amount on both sides. Therefore, it is balanced. On both sides there is 1 Na atom, 1 O atom, 2 H atoms, and 1 Cl atom.

Answer:

The reactant side of the chemical equation has  

1

atom(s) each of sodium, oxygen, and chlorine. The reactant side also has  

2

hydrogen atom(s). Count the numbers and kinds of atoms on the product side of the equation. The numbers and kinds of atoms on both sides of the chemical equation are  

the same

. So, this chemical equation is  

balanced

.

Explanation:

When Kristen was five, she became sick with chickenpox and then recovered. What claim explains why Kristen is unlikely to get chickenpox a second time? *
A. Kristen has developed a vaccine against chickenpox.
B. Kristen has not developed antibodies to chickenpox.
C. Kristen’s body no longer contains cells that can be damaged by chickenpox.
D. Kristen’s body has memory cells that will produce antibodies to fight chickenpox.
be quick plz!!

Answers

Answer:

the answer is A!

Mark as brainless

Answer:

A. Kristen has developed a vaccine against chickenpox

Please mark me as brainliest( ^ω^ )

can anybody define hypothesis in their own words? (its for school)

Answers

Answer:

An educated guess based on what you already know.

Explanation:

It’s basically an educated guess, but not a far out stretched guess like say you were testing which baby birds could fly, you could make a guess by seeing how they work & conclude your answer. hope this helps!

Early man discovered it and used it with wood. When I use it on this thing it smells so very good.

Answers

Answer:

Fire was found by early man and used with wood, and it is used on a candle to smell good.

The answer to the riddle you provided is "fire." Early humans discovered fire and used it in conjunction with wood for various purposes, such as cooking, and providing warmth, and protection. When you use fire on something, it often produces a pleasant aroma or smell.

When energy is transformed from one form to another, what kind of energy is always produced?

Answers

Answer:

Energy transformation is when energy changes from one type to another. While energy can be transferred or transformed, the total energy always remains the same.

Explanation:

Heat energy is always produced

Which statement describes how natural gas is made and its environmental impact? A. Natural gas is made from fertilizer. Using it causes water pollution. B. Natural gas is made from rocks and minerals. Using it causes erosion. C. Natural gas is made from nuclear reactions. Using it produces hazardous waste. D. Natural gas is made from the remains of prehistoric organisms. Using it produces air pollution​

Answers

Answer:

Im not so sure but I believe the answer is D. Natural gas is made from the remains of prehistoric organisms. Using it produces air pollution

Explanation:

If right can I get brainliest?

The picture shows the Prairie blazing star, a flowering plant found in a prairie environment.



How does the body plan of the Prairie blazing star help it carry out its life processes?
A.
Being in groups helps it to attract pollinators, and the roots touching each other allow the plants to share nutrients.
B.
The narrow leaves help it to attract herbivores to carry seeds, and the roots fan out to find water of a large surface area.
C.
The height of the plant allows it to receive direct sunlight, and the flowers prevent herbivores from trying to eat it.
D.
The deep roots allow it to find water in a usually dry environment, and the narrow leaves help prevent water loss through evaporation.

Answers

Answer:

A

Explanation: hope this helps

Free points trotting to play quarterback in

Which of the following is NOT a gland?
A. Pancreas
B. Neuron
C. Thyroid
D. Pituitary
help please!

Answers

B! Neuron controls the glands and other things in the brain, it is not a gland
answer A
explanation: a neuron is a nerve cell that carries electrical impulses

Please hurry I need to get this done, Please help me I will give you the brain thing and extra points.
image below 8

Answers

Answer:

A

Explanation:

The box will not move since its the same amount of force on each side.

The answer is A


Since the force being put on both sides is the same the box won’t move.

Valence electrons will either ______________ or ______________ to form molecules.

Answers

Answer:

ionic or covalent

Explanation:

The outermost electrons -- the valence electrons -- are able to interact with other atoms, and, depending on how those electrons interact with other the atoms, either an ionic or covalent bond is formed, and the atoms fuse together to form a molecule.

need help asap
will give brainly

Answers

I think the answers are A, C, A.
The answers for those are A,C ,A

Where do flowers come from? They are made through the process of sexual reproduction. Flowers may look simple, but there are actually several parts that allow it to reproduce. Let's take a closer look. Glad my mom didnt make me read this out loud- THIS WAS IN MY FREAKING SCHOOL WORK IM NOT LYING LIKE LOL

Answers

Answer:

They're sexual reproduction

Explanation:

A flower throws seed at another flower

OMG AHHAHA I LAUGHED SO HARD LMFAIAISJJ

which metal will cool faster in water
steel
copper
brass
aluminum

Answers

Answer:

Copper!

Explanation:

Hope This Helps

Answer:

Aluminum

Explanation:

I need help unscrambling and answering these. The underlined letter is what starts the word. Once they are unscrambled match them to the correct thing they are. Example: Zoologist= Animals.

Answers

Answer: Zoologist (like you said) Geologist, and Chemist, Biologist, Seismologist.

Zoologist

Geologist

Chemist

Biologist

Seismolgist

A SERIES CIRCUIT is a closed circuit with one path.

a. True

b. False

Answers

A series circuit is a closed circuit where the current follows one path. In a series circuit, the devices along the circuit loop are connected in a continuous row, so that if one device fails or is disconnected, the entire circuit is interrupted.
TRUE the devices in a series circuit are connected in a continuous row so if one device fails they all fail

What happens to chemical bonds during a chemical reaction?

Answers

the bonds that keep the molecules together break apart and form new bonds during chemical reactions.

What are two ways to practice conservation? How would your proposals help?

Answers

Answer:

Check your toilet for leaks. ...

Stop using your toilet as an ashtray or wastebasket. ...

Put a plastic bottle in your toilet tank. ...

Take shorter showers. ...

Install water-saving shower heads or flow restrictors. ...

Take baths. ...

Turn off the water while brushing your teeth. ...

Turn off the water while shaving.

what processes break down and build up Earth's surfaces?​

Answers

Weathering and Erosion I’m pretty sure
Tectonic plate movements or it’s Weathering and Erosion one or the other

16. What is the speed of the object represented by the graph?

A.0.5 m/s
B.2 m/s
C.5 m/s
D.10 m/s

Answers

Answer: 5 m/s

Explanation: At 1 second, the graph shows the object has travelled 5m. At 5 seconds, the object has travelled 25m.

answer: the answer is 5 m/s

Which of the following describes an energy transformation from chemical to electrical to light energy?

a
A bolt of lighting flashes during a storm
b
A flashlight uses a battery to operate
c
A candle glows as it burns
d
A wind turbine produces power for ligh

Answers

The answer is B. a flashlight uses a battery to operate.

The battery represents the chemical energy. This is converted into electricity, which is converted into light energy.

An energy transformation from chemical to electrical to light energy is that a flashlight uses a battery to operate and the correct option is option B.

What is transformation of energy?

An energy transformation is the change of energy from one form to another.

Energy transformations occur everywhere every second of the day. There are many different forms of energy such as electrical, thermal, nuclear, mechanical, electromagnetic, sound, and chemical.

The Law of Conservation of Energy states that energy can neither be created nor destroyed.

Therefore, An energy transformation from chemical to electrical to light energy is that a flashlight uses a battery to operate and the correct option is option B.

Learn more about Transformation of Energy, here:

https://brainly.com/question/29102331

#SPJ3

Please hurry I need to get this done, Please help me I will give you the brain thing and extra points.
image below 9

Answers

The answers is C because they are pulling with different amount of forces opposite ways and there is more force towards the left.
Hey Answer is c ...........

Algal blooms which pollute streams, rivers, and lakes are caused by the presence of O A. lead. O B. oxygen. C. mercury. D. phosphates. O E. E. DDT.​

Answers

Answer: oxygen

Explanation:

Oxygen is right

B is the choice needed to choose

What causes physical weathering?
​

Answers

Answer:

its when something is weathered

Explanation:

Answer:

Physical weathering is caused by the effects of changing temperature on rocks

Explanation:

Conner boils water on the electric stove. The electrical energy is transferred to the thermal energy of the stove. This demonstrates which of the following?

a
Energy is created and then destroyed
b
Every system produces more energy than goes into it
c
Energy can change from one form to another
d
Electrical energy can only produce heat energy

Answers

Answer:

The answer is C

Explanation:

Also I love your Bakugou pfp ;D

Answer:

c

Explanation:

because I think it makes the most sense

Plsss help!! What would happen to a cup of hot coffee left untouched for 10 minutes. Include in your response temperature, molecules, and kinetic energy.

Answers

Answer:

The overall temperature of the coffee would decrease because the coffee would transfer its thermal energy into the surrounding air. The molecules would slow down in movement because when the coffee was hot, they were moving around faster. Subsequently, the kinetic energy of those molecules would also decrease

Explanation:

Answer:

the temperature would become cooler

Explanation:

If your reactants are equal to our products in our chemical equation, then the arrow should always be pointing towards the?

Answers

It would be facing the right
It should point to the right

Please hurry I need to get this done, Please help me I will give you the brain thing and extra points.

image below 7

Answers

Answer: I believe the answer is D

Explanation:

answer is d !’nnnnnnjj

Which change of state is shown in the model?
A. Condensation
B. Boiling
C. Sublimination
D. Freezing​

Answers

Answer:

D

Explanation:

D freezing
All the molecules are tight together

Does seeing a gas produced always mean a chemical reaction is occurring? Explain.

Answers

Seeing signs of a chemical reaction does not always mean that a reaction is happening. For example, a gas (water vapor) is given off when water boils. ... You can tell that it is a physical change because water vapor can condense to form liquid water. In a chemical change, a new substance must be produced.

Answer:

Seeing a gas produced not always means a chemical reaction is occurring.

Explanation:

The following clues for an occurrence of a chemical reaction:

Color: The color of the solution changes when mixed with another solution or on the addition of a solid to a solution.Temperature: Rise or fall in temperature of the substance formedPrecipitation: Formation of solid substance that is precipitateGas evolution: Bubbles or gas formation. Evolution of gas or fumes from the solution.Odor: The smell of the reacting mixture initially differs from the smell of the products

Yes, gas formation is one of the clues of the occurrence of a chemical reaction but it is not completely true.

This is because the evolution of gas also occurs when a substance undergoes a physical change.Water vapors on boiling water, sublimation of dry ice giving carbon dioxide gas.

So, from this, we can conclude that seeing a gas produced not always means a chemical reaction is occurring.

Learn more about observations of chemical reactions here:

brainly.com/question/12297947?referrer=searchResults

brainly.com/question/14219426?referrer=searchResults

The distance from the crest of one wave to the crest of the next wave.
A. microwaves
B. longitudinal
C. wavelength
D. electromagnetic
E. gamma rays
F. mechanical

Answers

Answer:

C

Explanation:

Answer:

c

Explanation:

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