Please help me I will give you the brain thing and extra points. image below part 3
Answers
Answer:
A Chemical, gas produced
Explanation:
Answer:
[tex]\boxed {\boxed {\sf A. \ Chemical \ change-gas \ produced}}[/tex]
Explanation:
Baking soda (NaHCO₃) and acetic acid (C₂H₄O₂) in vinegar react.
They form water (H₂O), sodium acetate (NaC₂H₃O₂), and carbon dioxide (CO₂).
This must be a chemical change, because new products are formed. We can eliminate choices B and C, because they are physical changes. Physical changes don't require a chemical composition change.
So, we are left with choices A and D.
Choice D must be incorrect because mass cannot disappear. According to the Law of Conservation of Mass, mass can't be made or destroyed.
That leaves choice A. Combining baking soda and vinegar is a chemical change, because new products, like gas, are formed. The gas helps blow up the balloon.
Related Questions
Based on this Punnett Square, what is the chance one of the offspring will be a boy? *
a. 25%
b. 50%
c. 75%
d. 100%
e. 0%
Answers
Answer:
a
Explanation:
a
Two tall plants are crossed to produce 100 offspring. 73 plants were tall and 27 plants were short. Which allele is dominant? *
a. tall
b. short
Answers
Answer:
a.
Explanation:
imo its just basic comparing. the greater number is 73, and those were tall plants so in conclusion; a. tall would be correct.
hope i could help!!
Once water vapor has been released into the atmosphere, it rises and cools, turning back into liquid. What is this process called?
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Answers
Answer:
Its Condensation :)
Explanation:
thanks!! you too <3
Answer:
hello again! here ya go
Condensation
Explanation:
Condensation is the change of water from gas form to liquid form. When water vapor in the atmosphere loses heat and cools down, condensation happens. As the water vapor cools down and condenses, it attaches to small particles of dust floating in the atmosphere, forming tiny liquid water droplets.
Cleo has a vegetable garden and wants to increase the amount of nitrogen in the soil.
How can she most likely do this?
A. Add several soybean plants to her garden
B. Decrease the amount of fertilizers she uses
C. Harvest the vegetable plants continuosly
D. Reduce the number of decomposers that live in the soil
PLEASE HURRY!!!!!
GOD BLESS ALL STAY SAFE AND HAVE A VERY BLESSED AND HAPPY THANKSGIVING!!!! :) :) :)
Answers
Answer:
A:add several soybean plants to her garden
Explanation:
because she wants to increase the amount of nitrogen in the soil
PLEASE HELP MEEEE! PLEASEEEEEEEEE
1. In your own words, explain how plate tectonics is responsible for features on the surface of the planet.
2.How did our continents get made?
3.How far can landslides travel?
4.What do landslides often follow?
Answers
Answer:
1. relationships between plate motions and surface features
2. material built up along the boundaries of tectonic plates
3. they can travel more the 20 times farther then they fall
4 they follow drought
Which of the following is a subsurface event that takes place during the rock cycle? Cementing Erosion Melting Weathering
Answers
Answer:
Melting
Explanation:
Because
surface: occur ABOVE ground. Cementing, Erosion, and Weathering all happen ABOVE ground.
subsurface: occur UNDER ground. Melting occurs UNDER ground.
Hope this helped:)!
You are planning on making punch and you would like to cool it with ice. At the
store, there are 2 different one-pound bags of ice to choose from:
one that contains large ice cubes
one that contains small ice chips.
You only want to purchase one bag of ice and will add the entire bag to the punch.
Would one of the bags cool the punch at a faster rate? If so, which one and
why? If not, why?
Would one of the bags of ice cool the punch to a lower temperature? If so,
which one and why? If not, wh
Answers
It would be best to buy the bag of ice cubes because they come in a larger size. the larger the size of the object that should help cool it the faster it will cool it.
In 3-5 sentences, explain the major developments and events of the
Paleozoic Era.
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Answer:
♡ hi fairy ♡
-- the major developments and events of the
Paleozoic Era is how it earned the name "the greatest extinction event in Earth history." An event are how the major interval of geologic time that began 541 million years ago with the Cambrian explosion. The people of the era were cycads, glossopterids, primitive conifers, and ferns. ♡
~ madeline
✧･ﾟ: *✧･ *:･ﾟ✧*
Why do males need an adam's apple?/??
Answers
Answer:
Everyone's larynx grows during puberty, but a girl's larynx doesn't grow as much as a boy's does. That's why boys have Adam's apples. ... This larger larynx also gives boys deeper voices. Actually, girls' voices get a little bit deeper as their larynxes get larger, too.
Explanation:
Hope it helps you!
A white cat has no fur color. It carries the alleles cc. Identify its genotype and phenotype. *
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A snurfleguffle is an imaginary animal living in the arctic. Give an example of a possible trait which might be removed from existence due to natural selection. *
Answers
Answer:
It might have animals that depend on this "animal" for a food source. If we were to remove it, all the animals that are after this "animal" on the food chain will die out and the animals that they eat will over populate.
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Which characteristic describes both the domains Bacteria and the domain Archaea
Answers
Answer:
A
Explanation:
because Archaea is a prokaryotic as well as bacteria
Uhh ik the first part is true but idk how i need help
Answers
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Answer:
Gravity is not really the same everywhere if depending on where you are like if you're on the moon there's going to be less gravity than there is here on earth or if you just go to any other planet there's going to be less gravity.
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1. What process breaks up rocks?
2. What are the agents or natural forces that weather rocks?
3. What forces on Earth have you observed picking up or moving rocks, soil, sand or mud?
Answers
Answer:
1) Weathering breaks down and dissolves rocks.
2) Wind and Rain as well as erosion.
3) Gravity, Wind, Water.
In this question you will be assessed on using good English, organising information clearly and using specialist terms where appropriate.
White Blood Cell are part of the immune system. White Blood Cell helps the body to defend itself against pathogens.
Describe how pathogens cause infections and describe how the immune system defends the body against these pathogens.
Answers
Answer:Your blood is made up of red blood cells, white blood cells, platelets, and plasma.
Your white blood cells account for only about 1% of your blood, but their impact is big. White blood cells are also called leukocytes. They protect you against illness and disease.
Think of white blood cells as your immunity cells. In a sense, they are always at war. They flow through your bloodstream to fight viruses, bacteria, and other foreign invaders that threaten your health. When your body is in distress and a particular area is under attack, white blood cells rush in to help destroy the harmful substance and prevent illness.
White blood cells are made in the bone marrow. They are stored in your blood and lymph tissues. Because some white blood cells have a short life of 1 to 3 days, your bone marrow is always making them.
Types of white blood cells
Among your white blood cells are:
Monocytes. They have a longer lifespan than many white blood cells and help to break down bacteria.
Lymphocytes. They create antibodies to fight against bacteria, viruses, and other potentially harmful invaders.
Neutrophils. They kill and digest bacteria and fungi. They are the most numerous type of white blood cell and your first line of defense when infection strikes.
Basophils. These small cells seem to sound an alarm when infectious agents invade your blood. They secrete chemicals such as histamine, a marker of allergic disease, that help control the body's immune response.
Eosinophils. They attack and kill parasites and cancer cells, and help with allergic responses.
Problems affecting white blood cells
Your white blood cell count can be low for a number of reasons. This includes when something is destroying the cells more quickly than the body can replenish them. Or when the bone marrow stops making enough white blood cells to keep you healthy. When your white blood cell count is low, you are at great risk for any illness or infection, which can spiral into a serious health threat.
Your healthcare provider can do a blood test to see whether your white blood cell count is normal. If your count is too low or too high, you may have a white blood cell disorder.
A number of diseases and conditions may affect white blood cell levels:
Weak immune system. This is often caused by illnesses such as HIV/AIDS or by cancer treatment. Cancer treatments such as chemotherapy or radiation therapy can destroy white blood cells and leave you at risk for infection.
Infection. A higher-than-normal white blood cell count usually means you have some type of infection. White blood cells are multiplying to destroy the bacteria or virus.
Myelodysplastic syndrome. This condition causes abnormal production of blood cells. This includes white blood cells in the bone marrow.
Cancer of the blood. Cancers including leukemia and lymphoma can cause uncontrolled growth of an abnormal type of blood cell in the bone marrow. This results in a greatly increased risk for infection or serious bleeding.
Myeloproliferative disorder. This disorder refers to various conditions that trigger the excessive production of immature blood cells. This can result in an unhealthy balance of all types of blood cells in the bone marrow and too many or too few white blood cells in the blood.
Medicines. Some medicines can raise or lower the body's white blood cell count.
Conditions such as extreme physical stress caused by an injury or emotional stress can also trigger high white blood cell levels. So can inflammation, labor or the end of pregnancy, smoking, or even extreme exercise.
Explanation:
What is the main organ of the urinary system
A. Gallbladder
B. Stomach
C. Kidney
D. Small intestine
What is the purpose of the urinary bladder?
A. Collects and stores tears
B. Collects and stores sweat
C. Collects and stores solid waste
D. Collects and stores urine
Answers
d. collects and stores urine
How are bacteria cells different from human cells?
A
Bacteria cells do not contain a cytoplasm.
B
Bacteria cells do not contain genetic material.
C
Bacteria cells are much bigger than human cells.
D
Bacteria cells are less complex than human cells.
Answers
Bacteria cells do not contain genetic material
Which answer choice describes all non metals
Answers
PLEASE HELP ME ASAP
look at the picture below
Answers
Answer:
Explanation:
cast - Detail left after an organisms decaysTrace fossil- hollow form Petrified fossil - living thing turned into rock Carbon firm - record of the organisms's activity mold - solid copyhelppppp please!! 20 points and brainliest!!!
Answers
Answer:
A
Explanation:
Erosion is the process where rocks are broken down by natural forces such as wind or water. There are two main types of erosion: chemical and physical.Mar. 20, 2018
The answer to this is:
C. A statue's features worn off by acid rain
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Examine the diagram of a cell. Which organelle is marked with an X? Golgi body mitochondrion nucleus vacuole
Answers
Answer:
mitochondrion
Explanation
i did research
I need help fast I’m so confused on this it’s just AHHHHH
Answers
Answer:
The 4th one
Explanation:
Tell me if its right
Most meteoroids burn up in this layer
A.
exosphere
B.
ionosphere
C.
stratosphere
D.
mesosphere
Answers
Answer:
The answer is B
how is the amount of available sunlight most likely to affect the makeup of an ecosystem?
Answers
Answer:
it will have more photosynthesis if it gets more sunlight
The table below shows the elements that mainly comprise each of the four layers of Earth:
Elements in Layers
Layer Main Elements
Crust Oxygen, Silicon
Mantle Iron, Magnesium
Outer Core Iron, Nickel
Inner Core Iron
Which of these elements make up the layer that is 0.2 to 1.1 percent of Earth's total diameter?
Oxygen and Silicon
Iron and Magnesium
Iron and Nickel
Magnesium and Silicon
Answers
Answer:
Oxygen and silicon
Explanation:
oxygen and silicone. The crust consists of tectonic plates (in relative motion one from another) and has 5–70 km (~3–44 miles) in depth. The most abundant elements of this layer are: oxygen-46.6 percent by weight; silicon-27.7 percent; aluminum-8.1 percent; iron-5 percent.
Why do your feet feel hot after touching them to hot sand or pavement?
Answers
Answer:
The reason for that is when you keep your hand or any part of your body there your body takes in that heat witch makes you hot.
i hope this helps
Please help!!! Will give brainlest or whatever
Answers
Answer:
the answer is D but if wrong sorry
Which feature would create the most fertile soil?
blowouts
deposition
sand dunes
loess deposits
Answers
Your answer is Loess
Loess soils are among the most fertile in the world, principally because the abundance of silt particles ensures a good supply of plant-available water, good soil aeration, extensive penetration by plant roots, and easy cultivation and seedbed production.
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Which two characteristics do organisms in kingdoms Plantae and Animalia have in common
Answers
Answer:
I believe the answer if A or D
Explanation:
tell me if I am wrong
✨have a good day or night
Characteristics do organisms in kingdoms Plantae and Animalia have in common are they have eukaryotic cell and they are multicellular. Thus, option A and D are correct.
What is difference between unicellular and multicellular organisms?The main difference between unicellular organisms and multicellular organisms is that unicellular organism is unspecialised it means all the body function depends upon only on the single cell and in multicellular organism there is specific cells for specific purposes.
Multicellular and unicellular organisms are perform almost all the life running activities and processes such as reproduction digestion, breathing, and metabolism, respiration.
In unicellular organism division of labour is at the organ level performed on the other hand in multicellular the division of labour at cellular, tissue, organs and organ system level.
Unicellular organism has simple body organization and multicellular organism have complex body organism.
Therefore, characteristics do organisms in kingdoms Plantae and Animalia have in common are they have eukaryotic cell and they are multicellular. Thus, option A and D are correct.
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Use what you know about asexual and sexual reproduction to sort the terms below into the correct column. If the term is related to asexual reproduction, write it in the column on the left. If the term is related to sexual reproduction, write it in the column on the right. If the term is related to both types of reproduction, write it in both columns.
Terms: DNA, male and female, one parent, unique, spores, uniform, traits, egg, and sperm
HELPPP PLEASEE and dont answer something random please actually help
Answers
Asexual reproduction- one parent, unique, spores, uniform
Sexual reproduction- DNA, male and female, traits, egg, sperm
What is Reproduction?Reproduction is a type of biological process in which new organisms called offspring are produced from parent or parents . In this process, organism make more organisms which look like themselves. It enables and ensure the continuity of species from generation after generation which is the main feature of life on Earth.
There are two types of reproduction.
1. Sexual reproduction
In sexual mode of reproduction, an organism combines a genetic information which is received from each of the parent. In this method, offspring which are produced from different from parents.
2. Asexual reproduction
In asexual reproduction, a parent copies itself to form genetically identical offspring. In this method, offspring which are produced from identical to the parent.
Thus, Asexual reproduction- one parent, unique, spores, uniform
Sexual reproduction- DNA, male and female, traits, egg, sperm
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