Like most students, Megan really enjoyed doing labs in science class. One day her teacher allowed the class to design their own experiment. Her task was to see if she could blow up a balloon using chemicals. Megan knew that vinegar and baking soda would fizz and produce a gas. However, her teacher didn't give her any vinegar to use, only dilute hydrochloric acid. Megan thought she could use the acid in place of the vinegar.
Based on the reading above, which hypothesis would be supported by the experiment?

Answers

Answer 1

The BALLOON BLOW UP SCIENCE EXPERIMENT provided evidence to support this claim.

When baking soda, a basic, and vinegar, an acid, are combined, a chemical reaction occurs that produces carbon dioxide gas. Instead of having a predetermined volume or shape, gases expand quickly to fill their container. Because of the fast particle motion in all directions, gases expand quickly. The carbon dioxide gas starts to fill the balloon as it fills the bottle since it has nowhere else to go. The balloon fills with carbon dioxide gas and expands as a result. The size of the balloon will increase with the amount of gas produced. A material is said to be acidic if it has a bitter taste, reacts with metals and carbonates, and turns blue litmus paper red. A base is a compound that has a bitter taste, is slick to the touch, and causes red litmus paper to turn blue.

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Related Questions

1) What is the difference between regular and diffuse reflection?

Answers

Explanation:

Regular reflection happens when light reflects off an awfully smooth surface and forms a clear picture.

Diffuse reflection happens when light reflects off a unpleasant surface and forms a hazy picture or no picture at all.

Why is oxygen such an important input for cellular respiration?

Answers

Answer:

Oxygen is important because it makes aerobic respiration possible by accepting electrons from the transport chain in the mitochondria. Sometimes oxygen is unavailable in some of your muscle cells (typically during heavy exercise); at times like these, the muscle cells will temporarily revert to lactic acid fermentation, which yields far less energy.

Explanation:

Answer:

Well oxygen is important for cellular respiration when it comes to humans and some other animals but for some other organisms and cells they don't require oxygen.

Explanation: Why we would say oxygen is important for the cellular respiration of humans is because if you take it away this can destroy the whole process of cellular respiration which can harm the humans.  Metabolic poisons or Rat poisons work in a similar way by disrupting process done by enzymes in cellular respiration so just like that taking oxygen will disrupt cellular respiration in the human harming them or even causing death as parts of the cell such as the mitochondria use it in fact one of the parts of the cycle for making ATP for some animals requires oxygen such as the Krebs cycle.

 

A, B, C, or D? Please help!

Answers

I'm not sure of this question, yet i know you may get angry but, just know your loved and if going through a hard time i'm so so sorry, i know how it feels it sucks. take care of yourself, drink water, listen to that one song that makes you dance in your room and go do what YOU love. your beautiful your perfect and dont listen to what anyone says. i love u, everyone loves u, i know its scary but it happens to everyone life isnt a peice of cake unfortunatly and it sucks but woahh your strong! if you need someone to talk to leave a comment below, happy hoildays everyone!

P.S, im looking into the answer of this question. I may not answer it right on time (since i'm not the smartest...) but i promise ill try my best! Also, i am not doing this for points im doing this to make others smile. I hate how no one checks up on anyone, lots of people are going through a stressful time (including me) and i just want to let everyone know that its okay not to be okay! I hope that you all find happiness in every possible situation, once again  HAPPY HOLIDAYS! Also, good luck. Please dont stress it!

Answer:

D

Explanation:

What is one way that science helps shape society?

Answers

Science is valued by society because the application of scientific knowledge helps to satisfy many basic human needs and improve living standards. Finding a cure for cancer and a clean form of energy are just two topical examples.

I give you brilliant

Answers

Answer:

As soon as the concentration passed 39, the plants died. Adding to that, I have also found out that the lower the concentration of the sugar, the  more the average height becomes.

Explanation:

Plant growth and development are tightly controlled in response to environmental conditions that influence the availability of photosynthetic carbon in the form of sucrose. Trehalose-6-phosphate (T6P), the precursor of trehalas in the biosynthetic pathway, is an important signalling metabolite that is involved in the regulation of plant growth and development in response to carbon availability. In addition to the plant’s own pathway for trehalas synthesis, formation of T6P or trehalas by pathogens can result in the reprogramming of plant metabolism and development. Developmental processes that are regulated by T6P range from embryo development to leaf senescence. Some of these processes are regulated in interaction with phytohormones, such as auxin. A key interacting factor of T6P signalling in response to the environment is the protein kinase sucrose non-fermenting related kinase-1 (SnRK1), whose catalytic activity is inhibited by T6P. SnRK1 is most likely involved in the adjustment of metabolism and growth in response to starvation. The transcription factor bZIP11 has recently been identified as a new player in the T6P/SnRK1 regulatory pathway. By inhibiting SnRK1, T6P promotes biosynthetic reactions. This regulation has important consequences for crop production, for example, in the developing wheat grain and during the growth of potato tubers.

Which of the following statements best describes cellular respiration

Answers

Answer:

Cellular respiration, the process by which organisms combine oxygen with foodstuff molecules, diverting the chemical energy in these substances into life-sustaining activities and discarding, as waste products, carbon dioxide and water.

Explanation:

Brainliest please?

The correct description about cellular respiration is - option H. Carbon-based molecules from food and oxygen are used to make ATP.

Cellular respiration is the multistep metabolic process that takes place in the mitochondria of the cell. There are two types of cellular respiration, aerobic and anaerobic.

Aerobic cellular includes three major stages glycolysis, Kreb's cycle, and oxidative phosphorylation.In this process, the products of photosynthesis, glucose, a carbon-based molecule, and oxygen are used to break down the glucose molecule and release energy in ATP.There are byproducts that are water and carbon dioxide.

Thus, the correct answer is - option H.

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Glucose isomerase is an enzyme used in industry. It is involved in the reaction to convert glucose to fructose. what effect does this enzyme have on this reaction

Answers

Answer:

Speedup the reaction.

Explanation:

Glucose isomerase is a type of enzyme that is responsible for the catalyzing the reaction of converting glucose into fructose. Its main purpose to speedup the chemical reaction between glucose and fructose. Without this enzyme, conversion of glucose into fructose will occur but takes a very long time. In this reaction this enzyme catalyze the reaction without using in the reaction.

Tell me how to use a HR diagram? 3 sentences please

Answers

Answer:

The Hertzsprung-Russell Diagram is a graphical tool that astronomers use to classify stars according to their luminosity, spectral type, color, temperature and evolutionary stage. Stars in the stable phase of hydrogen burning lie along the Main Sequence according to their mass.

Explanation:

What is a wave?
a disturbance that transfers energy?
b disturbance that transfers matter?
c any type of energy that makes particle move
d any type of matter that vibrates back and forth

Answers

Answer:

Explanation:

a disturbance that transfers energy?

Answer:

A. a disturbance that transfers energy

300 years ago, how much carbon was being added to the atmosphere

Answers

Answer:

Explanation:

The global average atmospheric carbon dioxide in 2019 was 409.8 parts per million (ppm for short), with a range of uncertainty of plus or minus 0.1 ppm. Carbon dioxide levels today are higher than at any point in at least the past 800,000 years.

What are 3 terms used to describe organisms such as cows

Answers

Answer:

animals

mammals

vertebrate

Explanation:

cows have a backbone so they are a vertebrate

cows have hair so they are mammals

and the are animals just like every other living thing

Three terms used to describe organisms such as cows are:

MammalsHerbivoresRuminants

What is an organism?

An organism, especially a cow, is a living thing. An organism is a singular living being that exhibits characteristics of life, such as the ability to develop, reproduce, respond to stimuli, and preserve homeostasis. Mammalia, a class of multicellular organisms including cows, forms the animal kingdom. Cows are complex biological entities with specialized sensory and digestive systems that enable them to live and thrive in their environment.

The following three terms are used to describe cow-like creatures:

Cows are mammals, which are warm-blooded animals with hair or fur and the ability to feed their young with milk.

Herbivores: Cows are herbivores, which means they only eat plants and no animal products like meat or dairy.

Cows are included in the class of herbivorous mammals known as ruminants, which have a four-chambered stomach.

Therefore, three terms used to describe organisms such as cows are:

MammalsHerbivoresRuminants

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PLEASE HELP IN ONE MINUTE

Answers

Answer:

D

Explanation:

Answer:

Sample D

Explanation:

It is the least dense.

will give a 100 points assap
Clem is h o m o zygous for earlobe type.


What does this mean?


He has two of the same alleles for earlobe type, one from each parent.

He has two different alleles for earlobe type, one from each parent.

He has one allele for earlobe type from one parent.

He has two alleles for earlobe type, both from the same parent.

Answers

Answer:

A

Explanation:

Answer:

a

Explanation:

what is the substance found in cell walls of diatoms

Answers

Answer: opaline silica

Explanation:

Opaline silica
Diatoms are single called algae

Please I’m begging you please help

Answers

Answer:

c Parisiteism

Explanation:

One hundred percent of Peruvian Indians tested have blood type O. How can this type be so prevalent if it is based on the presence of two recessive alleles (ii)?

Answers

Answer:

Due to the presence of dominant allele.

Explanation:

This type of blood is prevalent even if two recessive alleles are present because the allele of blood type O is dominant as compared to other two recessive allele. Due to dominance of the blood type O, the blood type of next generation will also be type O. we know that only the dominant allele will appear in the offspring so that's why the Peruvian Indians have blood type O.

Describe the process that results in the formation of a tetrad.

Answers

The tetrad occurs during the first phase of meiosis. It is the foursome of chromatids that forms when replicated homologous chromosomes align. It must be formed for crossing over to occur. It is broken apart when the homologous chromosomes separate in meiosis I

Convert from kilometers to centimeters to determine the distance from the sun. Use the scale 25,000,000km = 1cm.



Mercury- 57.91 million kilometers

Venus - 108.2 million kilometers

Earth - 150 million kilometers

Mars- 227.9 million kilometers

Jupiter- 778.5 million kilometers

Saturn- 1.434 billion kilometers

Uranus- 2.871 billion kilometers

Neptune - 4.495 billion kilometers

Answers

Answer: See Below

Explanation:

25,000,000km = 1cm

In other words 25 million km = 1 cm

Mercury- 57.91 million kilometers

57.91 million km * 1 cm/ 25 million km = 57.91/ 25 cm = 2.3164 cm

Venus - 108.2 million kilometers

108.2 million km * 1 cm/ 25 million km = 108.2 /25 cm =4.328 cm

Earth - 150 million kilometers

150 million km * 1 cm/ 25 million km =150/25 cm = 6 cm

Mars- 227.9 million kilometers

227 .9 million km * 1 cm/ 25 million km = 227.9/25 cm =9.116 cm

Jupiter- 778.5 million kilometers

778.5 km * 1 cm/ 25 million km = 778.5/25 cm =31.14 cm

Saturn- 1.434 billion kilometers

1.434 billion * 1000 million/1 billion = 1434 million

= 1434 million km * 1 cm/ 25 million km =1434/25 cm =57.36 cm

Uranus- 2.871 billion kilometers

2.871 billion * 1000 million/1 billion = 2871 million

2871 million km * 1 cm/ 25 million km =2871/25 cm =114.84 cm

Neptune - 4.495 billion kilometers

4.495 billion * 1000 million/1 billion = 4495million

4495 million km * 1 cm/ 25 million km =4495/25 cm =179.8 cm

Help me pls what characteristics of life does a pregnant lady have and her baby

Answers

Am sure it must be Growth and development
Growth and development

what is the mass of 3.57 x 10^24 molecules of Ca(No3)2 ?

Answers

50.3 g

Explanation:

Start by converting the number of molecules of methanol to moles by using Avogadro's constant.

9.45

10

24

molecules CH

3

OH

Avogadro's constant



1 mole CH

3

OH

6.022

10

23

molecules CH

3

OH

=

15.69 moles CH

3

OH

Now, in order to go from moles to grams, you need to use the molar mass of the compound, i.e. the mass of exactly  

1

mole of methanol.

Use the molar mass as a conversion factor to get

15.69

moles CH

3

OH

32.04 g

1

mole CH

3

OH

=

50.3 g

−−−−−  

The answer is rounded to three sig figs, the number of sig figs you have for the number of molecules present in the sample.

Which is a small animal with tentacles and a skeleton made of calcite?
A. squid
B. coral
C. octopus
D. starfish

Answers

I think squid

Explanation:

I'm not sure

Answer: coral and some starfish

Explanation: knowledge

Why were multiple applications of chloroplast solution applied to the chromatography strip with the capillary tube?

Answers

Answer:

To analyze the diversity of various chloroplast solution.

Explanation:

Chromatography is a separation technique used to analyze and compare two or more complex and colored solutions or mixtures. There are several types of chromatography like paper and thin-layer chromatography. The latter is used to separate and analyze two mixtures, applied at an angle of 90 degrees from each other while the former is used to separate multiple non-volatile solutions.

What affect the function of a proteins

Answers

Protein shape is critical to its function, and this shape is maintained by many different types of chemical bonds. Changes in temperature, pH, and exposure to chemicals may lead to permanent changes in the shape of the protein, leading to loss of function, known as denaturation.

cells increase in size during?

Answers

Answer:

mitosis

Explanation:

The increase in size and changes in shape of a developing organism depend on the increase in the number and size of cells that make up the individual. Increase in cell number occurs by a precise cellular reproductive mechanism called mitosis

Trees and biomass are considered to be blank
of renewable energy because they take time to grow and require careful
planning to ensure continued supply

Answers

Answer:

The blank is SOURCES

Explanation:

Sources of energy can either be RENEWABLE OR NON-RENEWABLE. Renewable sources of energy are those sources which are easy to replenish while non-renewable sources are difficult to replenish after being exhausted.

Biomass, which comes from plants and animals are considered to be SOURCES of renewable energy because they renewable energy because they take time to grow and require careful planning to ensure continued supply. Trees get their biomass from sun energy, which is a renewable source of energy.

Answer:

slower sources

Which type of fuel creates the most pollution?
A
Wind
B
Nuclear
с
Biomass
D
Coal

Answers

Answer:

D

Explanation:

Answer:

C

Explanation:

Hope this helps

_3. As the moon moves through Earth's shadow.
a. a lunar eclipse occurs
b. the phases of the moon occur
c. a solar eclipse occurs
d. a new orbital path is formed

Answers

The answer is a. A lunar eclipse occurs

What must happen for most areas on Earth to experience all four seasons?
•The Sun must reach its highest point in the sky.
•The Northern Hemisphere must experience winter.
•The axis must be tilted at a certain angle that."
remains unchanged.
•The north end of Earth's axis must always point away from the Sun.
HELP ON TIMER

Answers

Answer:

The correct answer is - The axis must be tilted at a certain angle that."  remains unchanged.

Explanation:

On the earth there ae many seasons but there are four major season, winter, summer, spring and autumn. The main reason that leads to all four season is the tilt of the sun at a specific angle that remain unchanged  which leads to change in the distance to the sun at specific time of the year which result in different rays of sun the part. So, whatever hemisphere or part tilted towards the sun leads to different season for instance:

North pole tilted towards the sun - summer in northern hemisphere

south pole tilted towards the sun -  winter in northern hemisphere

Answer:

The axis must be tilted at a certain angle that remains unchanged.

Explanation:

C on the test review. Good luck with your test/quiz/test review!

1. Describe the relationship of the location of the prostate gland to the urinary tract. Why is this significant

Answers

Answer:

The prostate is a gland of the male urogenital system, it is located below the bladder, in front of the rectum and is crossed by the urethra. In this way the urine leaves the bladder, crossing the prostate, until it is expelled. One of the most important functions of this gland is to provide nutrients for the maturation of the sperm.

Explanation:

The prostate gland is made up of 30-50 glands that empty their contents into the prostatic urethra (the tube that connects the prostate gland with the bladder urethra). Most cancers develop in the peripheral area of ​​the gland, that is, the outermost area of ​​it and is the one that can be felt with the finger. The entire organ is surrounded by a fibrous prostatic capsule.The prostate because it is located below the bladder and starting from it, is crossed by the urethra which is a tube that carries urine from the bladder to the outside. In turn, the prostate is crossed by another tube that comes from the seminal vesicles, which are glands whose mission is to provide nutritional elements to the semen and the vas deferens, which are tubes that start from the testicles and mainly lead the sperm to the outside.

What tends to happen after a mass extinction event? How are humans affecting the ability of this to happen?

Answers

Answer:

Scientists have been concerned that human activities could cause more plants and animals to become extinct than any point in the past. Along with human-made changes in climate (see above), some of these extinctions could be caused by overhunting, overfishing, invasive species, or habitat loss

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