Which statement explains why a chemical equation must be balanced?
O A. It must show that coefficients and subscripts can be used in
chemical formulas.
B. It must show how each chemical formula is written to accurately
represent each substance.
C. It must show the reactants and products on the correct sides of
the reaction arrow.
D. It must show that the mass of each element involved is conserved
by a chemical reaction.

Answers

Answer 1
the answer to this question is b
Answer 2

Answer:

The answer is D ape.x

Explanation:


Related Questions

Please help, I'm not sure how to even start this problemo.

Answers

Position X as the solar eclipse occurs when the moon is directly infront of the sun blocking sunlight from being viewed.

Give an example of where each of the following occurs on our planet

Divergent boundaries in ocean crust.
Divergent boundaries on continental crust
Convergent boundaries where two oceanic plates meet.
Convergent plates where two continental plates meet
Convergent plates where continental plates and oceanic plates meet
Where two transform boundaries meet.

PLEASE HELP WILL GIVE BRAINLIEST!

Answers

Answer:

Divergent boundaries

Divergent boundaries occur along spreading centers where plates are moving apart and new crust is created by magma pushing up from the mantle. Picture two giant conveyor belts, facing each other but slowly moving in opposite directions as they transport newly formed oceanic crust away from the ridge crest.

Perhaps the best known of the divergent boundaries is the Mid-Atlantic Ridge. This submerged mountain range, which extends from the Arctic Ocean to beyond the southern tip of Africa, is but one segment of the global mid-ocean ridge system that encircles the Earth. The rate of spreading along the Mid-Atlantic Ridge averages about 2.5 centimeters per year (cm/yr), or 25 km in a million years. This rate may seem slow by human standards, but because this process has been going on for millions of years, it has resulted in plate movement of thousands of kilometers. Seafloor spreading over the past 100 to 200 million years has caused the Atlantic Ocean to grow from a tiny inlet of water between the continents of Europe, Africa, and the Americas into the vast ocean that exists today.

Convergent boundaries

The size of the Earth has not changed significantly during the past 600 million years, and very likely not since shortly after its formation 4.6 billion years ago. The Earth's unchanging size implies that the crust must be destroyed at about the same rate as it is being created, as Harry Hess surmised. Such destruction (recycling) of crust takes place along convergent boundaries where plates are moving toward each other, and sometimes one plate sinks (is subducted) under another. The location where sinking of a plate occurs is called a subduction zone.

The type of convergence -- called by some a very slow "collision" -- that takes place between plates depends on the kind of lithosphere involved. Convergence can occur between an oceanic and a largely continental plate, or between two largely oceanic plates, or between two largely continental plates.

Oceanic-continental convergence

If by magic we could pull a plug and drain the Pacific Ocean, we would see a most amazing sight -- a number of long narrow, curving trenches thousands of kilometers long and 8 to 10 km deep cutting into the ocean floor. Trenches are the deepest parts of the ocean floor and are created by subduction.

Continental-continental convergence

The Himalayan mountain range dramatically demonstrates one of the most visible and spectacular consequences of plate tectonics. When two continents meet head-on, neither is subducted because the continental rocks are relatively light and, like two colliding icebergs, resist downward motion. Instead, the crust tends to buckle and be pushed upward or sideways. The collision of India into Asia 50 million years ago caused the Indian and Eurasian Plates to crumple up along the collision zone. After the collision, the slow continuous convergence of these two plates over millions of years pushed up the Himalayas and the Tibetan Plateau to their present heights. Most of this growth occurred during the past 10 million years. The Himalayas, towering as high as 8,854 m above sea level, form the highest continental mountains in the world. Moreover, the neighboring Tibetan Plateau, at an average elevation of about 4,600 m, is higher than all the peaks in the Alps except for Mont Blanc and Monte Rosa, and is well above the summits of most mountains in the United States.

looks like someone already answered so

Help this is due today

Answers

Try putting C that’s what I did I got it right

please help
list real-world examples of the different types of stimuli

Answers

Answer:

You are hungry so you eat some food. A rabbit gets scared so it runs away. You are cold so you put on a jacket. A dog is hot so lies in the shade. It starts raining so you take out an umbrella.

Newton laws escape room

Answers

i can barely see the image you put

I have two of these so if you think this is easy then another free ten points in my profile!

Answers

Answer:

z

Explanation:

x repersents a new moon and the others repersent quarter moons

(x is a new moon because new moons are often the phase when the moon is close to earths sun)

Z because it at a full moon the sun and moon are at opposite sides of the earth when there is a full moon

3 examples of potential energy due to chemical composition

Answers

Answer:

1. A rock sitting at the edge of a cliff has potential energy. If the rock falls, the potential energy will be converted to kinetic energy.

2. Tree branches high up in a tree have potential energy because they can fall to the ground.

3. A stick of dynamite has chemical potential energy that would be released when the activation energy from the fuse comes into contact with the chemicals.

4. The food we eat has chemical potential energy because as our body digests it, it provides us with energy for basic metabolism.

Explanation:

i gave you 4 if you don't want  to use one

Answer:

Some examples include: A charged battery. Explosives. Green leaves before the sun shines on them (potential photosynthesis)

Explanation:

What are all the ways energy is transferred as the tea kettle is heated, the steam turns the turbine, and the lightbulb lights up?​

Answers

Answer:

In a kettle, electrical energy is transformed into thermal energy.

Most energy is transferred into heat energy inside a lightbulb, thats why most ordinary electric lamps contain a thin metal filament that glows when electricity passes through it.

When the steam turn’s the turbine, it is turned into kintetic energy.

Please help with this, oh and bungee gum contains both the properties of rubber AND gum you see?

Answers

Can I still get 5 points bc u already figured it out

Which defines potential energy?

a. a form of energy-related to an object’s mass, position, or speed
b. a form of energy-related to an object’s mass, force, or speed
c. a form of energy-related to an object’s mass, position, or arrangement
d. a form of energy-related to an object’s mass, force, or arrangement

Answers

Answer:

A. a form of energy-related to an object’s mass, position, or speed

Explanation:

potential energy is based on position and speed while kinetic energy is based more mass and speed.

A roller coaster is stationary at the top of a ramp.

What is the kinetic and potential energy of the roller coaster?

A. potential energy: high
kinetic energy: zero

B. potential energy: zero
kinetic energy: zero

C. potential energy: high
kinetic energy: high

D. potential energy: zero
kinetic energy: high

Answers

Answer: C should be your answer.

High potential energy cuz it’s above ground. Their is zero kinetic though because kinetic energy is motion and the problem says that the object is stationary so it is not in motion so therefore there is no kinetic energy. (Answer is A)

How do I eat Chinese caca

Answers

Answer:

By mouth...

Explanation:

using hands.. :))

. Hhiijhhhhhghhajsndndjjsjsndndjdndnndjd

I think it is a melting snowman but I just want to make sure.

An Example of an endothermic reaction is:
A). A melting snowman
B). Photosynthesis
C). Boiling Water
D). All of the above

Answers

You are correct is melting snowman

a helium balloon containing 12m³ of gas at a pressure of 120kPa is released into the air. Assuming that the temperature is constant, calculate the volume of the balloon would have when the pressure inside the balloon has fallen to 40kPa, answer in m³

Answers

Answer: 36m3

Explanation:

Answer:

Explanation:

Eaton very cab

How much force is required to cause an object with a mass of 850 kg to accelerate at a rate of 2 meters per second squared (m/s^2)?

Answers

Answer:

1700N

Explanation:

mass multiplied by acceleration gives you the amount of force needed for it

Answer- the force needed to accelerate the 1000kg car by 3m/s2 is 3000N

How does electricity turn into light in a common lightbulb?

A. Electricity strikes the metal particles of the filament in a lightbulb. Some of the metal particles become gases and turn into light.

B. Electricity cools down the filament in the bulb to a very low temperature. At that temperature, the metal becomes bright and gives off light.

C. Electricity heats up the filament in the bulb to a very high temperature. At that temperature, the metal becomes bright and gives off light.

D. Electricity strikes the metal particles of the filament in a lightbulb. Some of the metal particles are ripped off from the metal and turn into light.

Answers

Answer:

C or D

Explanation:

C. the electricity heats up the bulb and that’s why whenever you touch a light bulb it’s warm

which out of the four molecules only have a single element:Oxygen gas,liquid water,carbon disulfide,Neon gas.

Answers

Answer:

O2-oxygen

Explanation:

Oxygen and neon are single elements

Two similar fans are operating in a room. Fan 1 makes a squeaking noise while running. Fan 2 is silent.

Which fan is more energy efficient?

a. Fan 1, because Fan 2 cannot convert energy into sound.
b. Fan 2, because the silence indicates there is no energy transfer going on in the fan.
c. Fan 1, because the noise indicates there is no energy transfer going on in the fan.
d. Fan 2, because Fan 1 converts some energy to sound.

Answers

Answer:

Fan 1, because Fan 2 cannot convert energy into sound.

Explanation:

When Two similar fans are operating in a room. Fan 1 makes a squeaking noise while running. Fan 2 is silent. Then Fan 2 has more energy efficiency because Fan 1 converts some energy into sound. Therefore correct answer is D.

What is energy ?

Energy is nothing but the ability to do work. there are different energies in different form which are thermal energy, mechanical energy, electric energy and sound energy etc.

According to first law of thermodynamic, Energy neither be created nor be destroyed. it can only be transferred from one form into another form.

in case of Fan 1, Electric energy is given to it but it makes a squeaking noise while running. It means that it transfer some amount of total energy in sound energy and remaining for mechanical energy. Fan 1 can not transfer all the energy in the mechanical energy, there is loss in the energy in the form of sound.

in case of Fan 2, it is silent, it is converting all the electric energy into mechanical energy. there is no loss of energy. hence it is more energy efficient.

Hence option D is correct.

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High tide weird question

Answers

Answer:

A AND C

Explanation:

A and C would be your answer hope that helps

here, another one. I'm not good with figuring these out. ⭐-_-

Answers

Either tundra or taiga

Answer:

Think its A. or B.

Explanation:

Also its Hisoka

In the picture below, half of Earth is experiencing day, and half is experiencing night. If the Sun is always giving off light, why do we not all experience day all the time? In your own words, explain why we have a cycle of light and dark that repeats every 24 hours in most parts of the world.

Answers

Answer:

we have a cycle of light in dark because the Earth spins on an axis therefore providing light to one half of the earth at a time.

hope its helpful. :)

Explanation:

Explanation:

write 20 physical Quantities Quantities with S.Iunit and formula

The ground receives more light (heat) from the sun when:

the light rays are directly overhead in the summer
the light rays are slanted in the winter
the light rays are slanted in the summer
the light rays are directly overhead in the winter

Answers

Answer:

The answer is A.

Explanation:

What is the difference between an open and closed circuit?

Answers

Answer:

An open circuit does not go on for an infinite time, but the closed circuit does.

Explanation:

Place the objects in order from largest (at the top) to smallest (at the bottom) to model Earth's place in the universe.

Universe

Milky Way Galaxy

Solar System

Earth

Answers

Answer:

Earth, Solar System, Milky Way Galaxy, Universe

Explanation:

im pretty sure thatś the correct order

Earth solar system milkyshake galaxy and then universe

Which of the following is NOT a reason density decreases as altitude increases?
A. There is less air pushing down from above so molecules can spread out
B. Gravity is weaker the farther you get from Earth's core
C. Living things have breathed in much of the air molecules so there are less in the atmosphere

Answers

the answer is c i believe !

Do you think seismographs predict earthquakes or measure earthquakes, explain your answer?

Answers

An earthquake prediction must define 3 elements: 1) the date and time, 2) the location, and 3) the magnitude.

Yes, some people say they can predict earthquakes, but here are the reasons why their statements are false:

They are not based on scientific evidence, and earthquakes are part of a scientific process. For example, earthquakes have nothing to do with clouds, bodily aches and pains, or slugs.
They do not define all three of the elements required for a prediction.
Their predictions are so general that there will always be an earthquake that fits; such as, (a) There will be a M4 earthquake somewhere in the U.S. in the next 30 days. (b) There will be a M2 earthquake on the west coast of the U.S. today.

Seismographs measure earthquakes, but they do not predict them.

What is a sesimographs?

A seismograph is an instrument that detects and records ground motion caused by seismic waves generated by earthquakes or other sources such as explosions or volcanic eruptions. When an earthquake occurs, seismic waves radiate out from the epicenter and cause vibrations in the ground. Seismographs detect these vibrations and record them as a seismogram, which shows the time, amplitude, and duration of the earthquake.

Seismologists can use the data from seismographs to determine the location, magnitude, and depth of an earthquake. This information can be used to assess the potential impact of the earthquake and help in the development of earthquake-resistant structures and emergency response plans. However, seismographs cannot predict when an earthquake will occur. Despite advances in earthquake science, the behavior of earthquakes remains unpredictable, and there is currently no reliable method for earthquake prediction.

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please help
give real-world examples of how the body responds to stimuli.

Answers

Some real world examples of how the body responds to stimuli are:

External stimuli: something is coming at your face and you flinch or blink, you see a car coming at you so you dive out of the way, you are enjoying an activity and so your body releases dopamine.

Internal stimuli: you are hungry and signals respond to stimulus and send signals to your brain,

According to the law of conservation of mass, what is the mass of water
formed in this reaction?

Please help due today

Answers

Answer:

according to the conservation of mass,

according to the conservation of mass,the mass of the water is 36.04grams

Explanation:

Hope It Help you

Answer:

36.04 g

Explanation:

18. What processes have caused Earth's surface to change over time?
a. tectonic plate movement
C. A&B
b. weathering and erosion
d. none of the above

Answers

The answer is C. A and B
the answer is C. tectonic plate movement and weathering cause it to shift

What is electrolytes and what does it look like?

Answers

Explanation:

Electrolytes are minerals that carry an electric charge They're found in your blood, urine and sweat and are vital to specific processes that keep your body functioning as it should.

Electrolytes are essential minerals—like sodium, calcium, and potassium—that are vital to many key functions in the body.

They're often talked about in association with dehydration and mentioned in ads for sports drinks that promise to replace electrolytes lost through sweat.

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