Victor put a match on a balance and found that its mass was 6.0 grams. Then he lit the match and put it out after a few seconds.



He put the partially burned match on the balance again. This time, its mass was 4.5 grams.

Which of the following best explains what happened as the match burned?
A.
Some of the mass was destroyed by the fire.
B.
The mass of the match combined with the mass of the fire.
C.
The matter moved to a different part of the match.
D.
Some of the matter changed from solid to gas and went into the air.

Answers

Answer 1

Answer: It releases oxygen and heat. The answer is C

Stored inside the match head is another chemical called “potassium chlorate”. When it gets hot, it releases a lot of extra oxygen and heat. This makes the match head burn quickly and strongly. When you put it all together the heat, the fuel, and the oxygen  you get a flame. Matter does not go when something is set on fire. Matter is always the same.  Burning is a chemical process. The flames are caused as a result of a fuel undergoing combustion (burning). (CC BY-SA 2.5; Einar Helland Berger for fire and Walter Siegmund for ash).  

Answer 2

Answer:

Explanation:

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how it going long time no talk


Related Questions

A significant shift in the environmental conditions over a very short period of time caused most groups of dinosaurs to become extinct because of their inability to adapt fast enough. This allowed for a variety of niches to open providing current organisms new opportunities. Mammals were one group of organisms that took advantage of this environmental change, filling niches that were unoccupied and eventually developing new species that were specifically adapted to their particular environment. Which of the following is a term that most correctly describes this process?
A. Adaptive radiation
B. Gradualism
C. Convergent evolution
D. Genetic drift

Answers

Answer:

A. Adaptive radiation              

Explanation:

Four waves have different wavelengths and frequencies. Which statement is true
A- the wave with the greatest frequency will be the most powerful wave
B- all waves have to mechanical
C- the wave with the lowest frequency will be the most powerful wave
D- none of the above

Answers

Answer:B

Explanation:

Answer:

B- All waves have to mechanical

Explanation:

hope this helps! <3

I'LL GIVE YOU BRAINLIEST!!Which is the best definition of air pressure? *
1 point
the weight of the air pressing on everything in the environment
the amount of precipitation in a certain area
the type of clouds in the atmosphere
the amount of water vapor in the air

Answers

it's the weight of the air pressing on everything in the environment

List the four codes for RNA and show how they are paired.

Answers

Answer: adenine (A), uracil (U), guanine (G), and cytosine (C). When this base-pairing happens, RNA uses uracil (yellow) instead of thymine to pair with adenine (green) in the DNA template below.Bases. ... The four bases that make up this code are adenine (A), thymine (T), guanine (G) and cytosine (C). Bases pair off together in a double helix structure, these pairs being A and T, and C and G. RNA doesn't contain thymine bases, replacing them with uracil bases (U), which pair to adenine1.

Explanation:

4.) The more different kinds of living things in an ecosystem the more successful it is. This is called ___________.

use this vid https://youtu.be/-Sybgof-X2k

Answers

Answer: isn’t it climax community?

Explanation:

Biodiversity .. I guess

A scientist examines a bacterium and learns that it carries a gene that makes it resistant to antibacterial medication. Because bacteria reproduce through________, it’s likely that ______of the offspring created by bacteria with this gene will be resistant to the medication.

(the first blank options) (The Second blank options)
Binary fission all
Mitosis half
regeneration none

Answers

Answer:

1 = mitosis 2 = half (maybe)

Explanation:

PLS HELP......DNA, RNA, condon chart

Answers

TAC -> AUG -> methionine
CAT -> GUA -> valine
GGA -> CCU -> proline
ATT -> UAA ->STOP
ACT -> UGA ->STOP


TTC ->AAG ->Lysine
AAT ->UUA ->leucine
GGT ->CCA ->proline
CTA ->GAU ->aspartic acid
GGG -> CCC ->proline

ACA ->UGU ->cysteine
TTT ->AAA ->lysine
CAG ->GUC ->valine
ACC ->UGG ->tryptophan
GTC ->CAG ->glutamine


please no links i don’t have time for that lol

Careful studies have shown that robin eggs of intermediate size are more likely to produce viable offspring than smaller or larger eggs. This is an
example of

Genetic drift

Stabilizing selection

Heterozygote advantage.

Directional selection

Answers

Answer:

Reminder to be happy, go drink some water, eat some food and relax! You are loved :) <3

Explanation:

Prozac, Zoloft, and Paxil are called SSRIs because they a decrease the release of oxytocin in the endocrine system in anxiety disorders. b slow the normal reuptake of excess serotonin from synapses in depression. c successfully level the emotional highs and lows of bipolar disorder. d stimulate the release of norepinephrine into the bloodstream in depression. e increase the number of receptor sites for dopamine in schizophrenia.

Answers

Answer:

b slow the normal reuptake of excess serotonin from synapses in depression

Explanation:

Serotonin is a neurotransmitter that transports signals or messages between neurons.

Although other neurotransmitters are involved in depression affection, alteration in serotonin levels is an important cause of the disease.

Affected people that express depression show an alteration of the normal serotonin levels in the interneuronal space. There is a noticeable decrease in molecule concentration due to an increase in its reuptake.

The substances used in the depression treatment belong to the SSRI group. SSRI means Serotonin Selective Recapture Inhibitor. It means that these substances inhibit the reuptake of serotonin that usually occurs in affected patients.

ISSR treats depression by enhancing serotonin levels and its transmission by blocking the reuptake in neurons. In this way, there is more serotonin available to improve communication between neurons.

ISSRs are selective because their principal target is the serotonin molecule and not the other neurotransmitters.

how names and zodiacs affect who people are and how they look

Answers

The seasonal elements of ancient astrology are as follows: Spring (wet becoming hot) – Air – Gemini, Libra, Aquarius. Summer (hot becoming dry) – Fire – Aries, Leo, Sagittarius. Autumn (dry becoming cold) – Earth – Taurus, Virgo, Capricorn.

A scientist wanted to formulate a pill to attack a specific type of bacteria that infects the throat. Which biological component would be best to use as a model for the pill’s function?
bacteriocytes
phagocytes
complement system
antibodies

Answers

Answer:

thx but the answer is D

Explanation:

A pill formulated to attack a specific type of bacteria that infects the throat would best follow the operations of antibodies.

What are antibodies?

Antibodies are chemicals produced by the immune system of the body in response to external attacks by foreign substances.

In other words, antibodies are like weapons deployed to defend the body from external attacks.

A pill designed to attack a specific type of bacteria that infects the throat will be most effective if it follows the operations of antibodies.

Since different antibodies are produced for different external invasions, the pill will also be most effective by being specific in its actions.

More on antibodies can be found here:https://brainly.com/question/13981216

#SPJ2

PLEASE HELP!

Use two examples for plants to explain how the development of new technologies such as radioisotopes has increased our knowlegde of reactions in plants.​

Answers

Answer: The radioactive isotopes can be used to track many physiological functions and chemical reactions occurring within the cells of the living organisms including plants.

Explanation:

Phosphorus uptake by the plants: Phosphorus is an essential mineral required by the plants for their growth and metabolism. The radioactive phosphorus-32 can be used to track back the rate at which the plant absorbs the phosphorus from the soil. This can help scientists to identify plants that can absorb phosphorus more quickly.

Pesticides levels in the plants: The pesticides levels in the plants can be traced by using radioisotopes such as chlorine-36. This can be used to trace the fact that how much of pesticide is present in the soil and how much of it is utilized by the plants. This is helpful identifying the fact that which pesticide is useful for the growth of the plants.

Q4: Manual chewing of food is not enough in order to break down food, enzymes in the saliva and other parts of the body do what? * 10 points Used to lower the activation energy needed for a chemical process They speed up the rate of chemical reactions allowing more productivity They help break down various sugars that can then be absorbed All of the above

Answers

Answer:

All of the above

Explanation:

Digestion or breakdown of food in our body can either be physical/mechanical or chemical/enzymatic. As rightly stated in this question, the manual breakdown of food by the teeth is not enough, chemical digestion must occur via the aid of proteinous substances called ENZYMES. Enzymes, which are secreted by certain organs in the body, do the following:

- They speed up the rate of chemical reactions by lowering the activation energy needed for the chemical process, allowing more productivity.

- Enzymes help break down various sugars that can then be absorbed e.g amylase helps break down starch, proteases break down proteins, lipases break down lipids etc.

For anybody with this question
Here is your answer
1
3
4

Answers

Thanks you so much !!!!!!!!!!!!!!!!!!!!!!!!!

Can someone please help me

Answers

Answer:

The question A. is "period"

The question Below known as B. is "Group"

Explanation:

"You must not fear, for the answers are actually quite near."

(like in the paper)

Which of the following is NOT a way that fungi
reproduce?

A. asexually through spores dropping and growing

B. a piece of the hyphae breaks off, lands, and starts growing

C. the spores travel by wind to a different mushroom that gets
fertilized and sprouts a new mushroom

D. the hyphae of a plus and minus fungi come together and the
nuclei fuse and start to grow together

Answers

D is the answer you are looking for

An organism is identified as having the characteristics of the genus "canis" while it's species is determined to be "lupus". Which answer choice would properly demonstrate the organism's scientific name using binomial nomenclature? A. canis lupus

B. Canis Lupus

C. Lupus canis

D. Canis lupus

E. lupus canis

Answers

Answer:

Explanation:

b I’m pretty sure

Answer:

The answer is D.

Explanation:

The Genus is capitalized whereas the species is not.

PLEASE HELP WILL GIVE 40 POINTS

Answers

Answer:

Explanation:

Yes this would make sense because of the way turtles are more or less in the grounds of the sand.

No, it shall not. Due to the fact that they can work with cooler and warmer weather when developing.

Yes, no that people are in charge of where turtles would develop, they can change temp at their will, and they know forecasts. This is where they get the upper hand

What do decomposers leave behind after getting their energy?
А
chlorophyll and vitamins
B
carbon dioxide and water molecules
с
elements like carbon, nitrogen and phosphorus
D
energy-rich carbohydrates

Answers

Answer:

C: elements like carbon, nitrogen, and phosphorus

Explanation:

Choice C is the correct answer.

Decomposers leave elements like carbon, nitrogen, and phosphorus behind after getting their energy. Therefore, option C is correct.

What are decomposers?

Decomposers are creatures that transform dead plants and animals into humus, a material with a deep brown color. Any ecosystem needs decomposers to function properly. Plants won't obtain vital nutrients if they aren't present in the ecosystem, and they will accumulate decaying objects.

Each contributes to the food recycling process in a different way. To transform dead plants or animals into simple substances, fungi release compounds. Some of these elements are absorbed by them for growth, while others go into the soil. As they ingest dirt, earthworms break down decaying plant and animal debris.

They leave elements such as carbon, nitrogen, and phosphorus after the decomposition of matter. Therefore, option C is correct.

Learn more about decomposers, here:

https://brainly.com/question/13526806

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(HELP ASAP)
Cystic fibrosis is one of the most common genetic diseases in America. It is estimated
that 1 in 23 Americans are carriers for Cystic Fibrosis. Cystic Fibrosis is a recessive trait
that follows Mendel's Law of Dominance.
Answer ALL parts of the free response below - be sure to use vocabulary and explain your
response in detail:
A. Explain what Mendel's Law of Dominance means

B. Explain how 2 parents who do NOT have Cystic Fibrosis could have a child with cystic
fibrosis.

Answers

Answer:

a.When an organism is heterogeneous for a trait, it expresses only the dominant allele

b. A child will be born with CF only if they inherit one CF gene from each parent. A person who has only one CF gene is called a CF carrier. They are healthy and don't have the disease. But they are a carrier of the disease.

Explanation:

a.In other words, the dominant trait always masks the recessive trait.

b.A parent can be a CF carrier, and pass the CF gene on to their child.

Which component of RNA
replication has a structure similar to that of remdesivir?

Answers

Answer:

RNA nucleotide.

Explanation:

RNA nucleotide is the part of RNA replication that has similar structure to Remdesivir. Remdesivir is covalently bonded to the replicating RNA, which blocks further synthesis of RNA. This Remdesivir work against the viral polymerase and prevents viral spreading by blocking the synthesis of RNA. Remdesivir has similar structure to RNA nucleotide but different in their functions. Remdesivir is used against many viral infections due to its effectiveness on the RNA replication.

Multiple sequence alignment is a method that can be used to compare three or more biological sequences to determine homology and evolutionary relationships between species. This is done by selecting a target protein or DNA sequence (consensus) and comparing it across other species’ sequences. Conservation is a statistical analysis that describes how much the target sequence is observed across the selected group of species. A higher conservation score indicates that the protein or gene is more ancient or more critical across species.
Construct a cladogram using the multiple alignment of a protein sequence found below.

Answers

Answer:

here is the answer key

Explanation:

PLEASE HELP ASAP
What negative consequence can occur when non-native species are introduced into an ecosystem?

Native species will prey on the invasive species.
The introduced species prey on native species.
The introduced species mate with native species, adding genetic variety.
The introduced species strengthen the ecosystem by adding diversity.

Answers

Answer:

The introduced species prey on native species.

Explanation:

This could cause the native species to go extinct, damaging the natural ecosystem.

Give two examples of pioneer species.

Answers

Answer:

Two examples of pioneer species are lichens and bacteria

Explanation:

helps it helps

have a great day

Can somebody help me to this answer?

Answers

Answer:

Saving forest -> Use computers for communication and taking notes, conserving freshwater aquifers -> Treat sewage water and use it in factories, Reducing CO2 emissions that contribute to climate change -> Walk or use bicycle for short distance trave

Answer:

1. bottom box, 2. top box, 3. middle box

Explanation: common sense really

In the summer, coastal towns usually experience cool ocean breezes, as shown in the
Which process creates the type of ocean breeze shown?

Answers

there is no option or ocean breezes show

Scientists have discovered that all living things can be traced to a single ancestor Which following statements best relates this discovery to the evolution things
A. All living things have life cycles that include birth and death.
B. All living things are made out of the same types of macromolecules.
C. Many organisms have gone extinct since life appeared on Earth.
D. Most organisms alive today are unlike organisms from the past.

Answers

Answer:

A.all the living things have life cycles that include birth and death

What does the latest DRC outbreak have in common with the West
Africa outbreak of 2014-2016​

Answers

Answer:

IF YOU WANT MORE EXPLANAION YOU CAN MESSAE ME OK

Explanation:

On November 21, 2014, the WHOexternal icon reported that 42 days had passed since the last Ebola case tested negative twice and was discharged from a hospital in the Democratic Republic of the Congo (DRC). According to WHO recommendations, an Ebola virus disease outbreak in a country can be declared over once 42 days have passed and no new cases have been detected.

I HOPE THIS WILL HELP YOU

Solve this please
What do I writ's in each category?

Answers

Answer:

mRNA: UUGGACCGGUACCUG

Codon: UUG GAC CGG UAC CUG

Anti-codon: AAC CUG GCC AUG GAU

Amino Acids: Asn-Leu-Ala-Met-Asp

BEBE
Answer the lab question, "What is the effect of the
inheritance of one trait on the inheritance of a
second trait?" with a hypothesis. Remember that
you can either assume that the two genes are
independent or that they are linked. What results
would you expect in either case?
Hypothesis:
DONE

Answers

Answer:

Hypothesis: An inherited characteristic is not able to interfere in the inheritance of another characteristic in the same organism.

Explanation:

An inherited feature does not interfere with another inherited feature. This is because the genes are inherited by joining the gametes, which contain the genes of the organism's parents. Each gene is distributed in gametes completely randomly and independently. Inheritable characteristics are represented by these genes. In this way, genes are inherited independently, they do not interfere with inheritable characteristics. However, in genes inherited together, we can consider that only one inheritable trait would be presented, since these genes would interfere in the construction of another trait. This can be studied through hybrid crossings in living beings.

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