Answer:
Matter can be defined or described as anything that takes up space, and it is composed of miniscule particles called atoms. It must display the two properties of mass and volume.
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a single cell undergoes mitosis every five minutes how many cells will result from this cell in 20 minutes
Answer:
= 16 cells
Explanation:
Mitosis is the stage of cell division in nonsexual cells of eukaryotic organisms (that is, cells that have a nucleus). It takes place in several phases, begins after DNA duplication and ends with the separation of the two daughter cells.
It is a fundamental mechanism that occurs for the first time in the hours following fertilization.
After duplication of the genetic material, during interphase, it condenses and groups to form chromosomes with two genetically identical chromatids: this is the prophase. The nuclear membrane then dislocates, and the centromeres of the chromosomes (the area where the two chromatids of the same chromosome overlap) bind to the microtubules via the kinetochores. Gradually, all the chromosomes are sequestered at the equator of the cell: this is the metaphase.
Then, during anaphase, the chromosomes will split into two chromatids, each of which is pulled towards a pole of the cell. Thus, at each top of the cell, there is a copy of each chromosome. During telophase, the nuclear envelope will begin to reform around the set of chromosomes as the DNA gradually decondensed. The plasma membrane invaginates equatorially under the action of a ring of myosin and actin. Increasingly narrow, the bridge between the cells eventually breaks, and two cells are formed as a result of cytodieresis. Each of them can resume their growth.
Now; having understood what Mitosis is all about.
When a single cell undergoes mitosis every 5 minutes; we have the formation of two daughter cells.
Then in 20 minutes; we will have:
= [tex]2^{20/5}[/tex]
= [tex]2^4[/tex]
= 16 cells
animals need to consume other organisms for energy. how would you categorize them based on that information?
Answer:
They would be carnivores.
Explanation:
Spongebob completed his experiment. He wrote a brief summary about the investigation. He also determined that his hypothesis statement was not right and explained why it wasn't right by providing evidence from the investigation. Spongebob utilized which step of the scientific method?
Answer:
In a 7-step scientific method, Spongebob utilized the 6th step when He wrote a brief summary of the investigation, and Spongebob utilized the 7th step when He also determined that his hypothesis statement was not right and explained why it wasn't right by providing evidence from the investigation.
Explanation:
Scientific Methods are organized ways employed by scientists to tackle problems by providing solutions to the problem or make hypotheses to which other scientists build on to provide solutions to the problem.
The steps of the scientific method are:
Step 1- Understand the Problem
Step 2- Make research
Step 3- Hypothesis.
Step 4- Conduct an experiment to test the hypothesis
Step 5- Observations.
Step 6-Results/Conclusion.
Step 7- Communicate your research
When Spongebob wrote a brief summary of the investigation, which means he had already conducted an experiment and had already made necessary observations and data collection, so he was at step 6. At step 6, he had analyzed the data collected.
When Spongebob determined that his hypothesis statement was not right and explained why it wasn't right by providing evidence from the investigation, then he was at the final step of the scientific method. Step 7 tells whether the hypothesis is true or false.
Answer:
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Explanation:
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Which element has 5 protons 5 neutrons and 5 electrons
Elements are the smallest unit of the atom and cannot be divided. An element having 5 electrons, protons, and neutrons is a boron.
What are subatomic particles?Subatomic particles are the constituents of atoms that have mass and charge. They are the components that make the element unique and give the atomic number and the mass.
The electron is a negatively charged particle and protons are positive particles that along with neutral neutron give the atomic mass. An element with 5 sub atomic particles is called a boron.
Therefore, the element is boron.
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Which of these is a compound?
carbon dioxide
potassium
salt water
salad
A chemical equation is balanced if there are ______ ______ of each kind of ______________________ on both sides of the equation.
If each side of the equation has the same number of atoms of a given element, that element is balanced. If all elements are balanced, the equation is balanced. So your sentence should look like this:
A chemical equation is balanced if there are equal atoms of each kind of element on both sides of the equation.
What part of the atom is responsible for the behavior of the alpha particles?
Answer:
nucleus
Alpha particles are subatomic fragments consisting of two neutrons and two protons. Alpha radiation occurs when the nucleus of an atom becomes unstable (the ratio of neutrons to protons is too low) and alpha particles are emitted to restore balance.
Explanation:
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which option is an example of a chemical property?
A ability to decompose
B color
C melting point
D density
which option is an example of a chemical property
A boiling point
B reactivity
C color
D density
Answer:
A ability to decompose
B reactivity
Explanation:
Chemical properties are those properties that tell us about what a substance can do as regards to whether or not the substance reacts with other substances.
Examples are flammability, rusting of iron, precipitation, decomposition of water by an electric current.
The ability to decompose and reactivity are chemical properties of a substance.
Physical properties tells us everything about what a substance is when no change is occurring to its constituents. Examples are state of matter, color, odor, taste, texture, hardness e.t.cAnswer:
1. A
2. B
Explanation:
Chemical property does change the composition of a substance.
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Learning Properties of Matter Quiz Unit 2 Lesson 11 Grade 8
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3. magnesium oxide + ?______________________ magnesium nitrate + water
word equation:
________________________________________________________________
full equation:
________________________________________________________________
Ionic equation:
________________________________________________________________
Answer:MgO reacts with nitric acid
If you go to the moon your mass would ___.
stay the same
increase
Answer:
stay the same
Explanation:
you would weigh less if u stood on a scale but you're still the same mass unless you chopped of a body part or something
What are some ways you can avoid the health risks of too much radiation
exposure?
Answer: when you go outside protect your skin with sunscreen, protective clothing, a hat, and sunglasses
Explanation:
state four difference between the series and parallel connection?
Answer:
1- The components in a series circuit are arranged in a single path from one end of supply to another end. However, the multiple components in a parallel circuit are arranged in multiple paths where the two end terminals of the battery.
2- In the series circuit, different voltage exists across each component in the circuit. Whereas in the parallel circuit, the same voltage exists across the multiple components in the circuit.
3- The equivalent resistance in case of a series circuit is always more than the highest value of resistance in the series connection. While the equivalent resistance in the parallel circuit is always less than any of the individual resistances in parallel combination.
4- A fault in one of the components of the series circuit causes hindrance in the operation of a complete circuit. As against fault in a single component in a parallel network do not hinder the functioning of another part of the circuit.
The detection of a fault in case of a series circuit is difficult, but it is quite easy in parallel circuits.
What is the most important scientific process
Answer:
atoms bonding
Explanation:
Summary about helium
Answer: Helium is an type of air that can be used to inflate balloons, balls, and other things that require air. The carbon dioxide we breath out is similar to this helium.
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Create a sort of infomercial featuring a solution you created or designed.
Say a few statements about it.
please help
Answer:
Informercials, like the class Shamwow Informercial are an example of how structure and technique can have a huge effect on how a user or prospect is driven towards taking a specific action like clicking a buy button.
Informercials follow a specific structure that any small business can use to drive action but few businesses ever consider using it when they pitch their product or service. In this post, we'll describe the structure and give you examples of how you can use it in your business.
The question above wants to test your ability to create an infomercial using your creativity. For that reason, I can't create an infomercial for you, but I'll show you how to create one.
First, you need to know that an infomercial is an advertisement made to be played on television, usually associated with sales, but can be used to present information.
Based on this, you should create your newsletter as follows:
Establish the element that your infomercial wants to present.Show what are the issues related to this element.Show the solutions you want to present to these problems.Show how these solutions are truthful and reliable.In the image below, you can see a tutorial on how to make an infomercial.
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How many elements are in this chemical formula?
HCl
Group of answer choices
What will an object do if its density is less than the density of water?
Sink
Float
Bob up and down
Move forward
Answer:
bob up and down
Explanation:
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saturn is about 1 429 000 km from the sun. how many meters is saturn from the sun?
Answer:
1.493 trillion
Explanation:
Answer:
you must convert km to meters
Explanation:
Wear lightweight clothes in the_____. not sun or summer and is it heat
Answer:
there was too much heat
Explanation:
How does sediment form?
Molten rock cools below Earth’s surface.
Chemical changes cause sediment to cement together.
Loose material is compacted by pressure.
Weathering breaks down rock and other material.
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Answer:
Loose Material is compacted by pressure.
write down the similarities and differences of Continental and temperature climatic zones
Answer:
Temperate climates, otherwise known as meso-thermal climates, are cooler than subtropical climates, but warmer than polar climates. A continental moderate climate is another sub-type of temperate climates. These regions have hot, rainy summers and cold, dry winters.
Explanation:
A student mixed several different 12 mm plastic beads together by mistake. Luckily the beads had different densities. One group of beads had a density of 0.6 g/cm3; the other beads had a density of 1.2 g/ cm3. Describe a method the student can use to sort the beads.
Answer:
The answer is "Each student will get a glass of water and drop the bead into it but the beads float 0.6 g / cm3 and slip down to 1.2 g / cm3
".
Explanation:
One's masses would've been dissimilar, even though their width and concentrations were also equal. Whenever the type-A mass is m, then the type-B mass is 2 m. One should measure then, therefore.
Water has a 1g / cm^3 density. Although Type A is higher than air, Type B is much more compact. it means will float if they place it in water type-A where type-B sinks.
which is a limitation of a scientific model?
Answer:
A limitation of models in science is that they are usually simplified versions of the real situation or concept.sometimes, models spark debates leading to new and improved models.A model may be used when it is impossible to create the conditions necessary to test a concept of theory.
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Snakes and similar animals are members of a group called reptiles.
How do reptiles differ from other animals?
Answer:
They have skin covered with scales.
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What is the relationship between the atomic mass of an element and a mole of the element atoms?
The mass of a pure substance represents a specific number of pure substance 'molecules', as defined by molecular weight. The relative atomic mass (atomic weight) in grams/mole (g/mol) is the molar mass of a substance, which means it is the mass of one mole of that substance.
CCl4(l) is placed in a previously evacuated container at 30°C , and some of the CCl4(l) evaporates. In the box below, draw a particulate diagram to show the species in the container after some of the CCl4(l) has evaporated. The phases of the species should be indicated by the spacing and distribution of the particles in the diagram. Some of the species shown in the legend will not be used.
Answer:
The phases of the species should be indicated by the spacing and distribution of the particles in the diagram
Explanation:
Evaporation would be a phase change from liquid to gas where intermolecular forces are broken CCl4 (l) -> CCl4 (g)
Diagram is attached below
We have that from the diagram that when CCl4(l) is placed in a previously evacuated container at 30°C , and some of the CCl4(l) evaporates that the molecules of CCl4(g) becomes loosely held and apart from while in its closely held in its liquid state.
From the question we are told
CCl4(l) is placed in a previously evacuated container at 30°C , and some of the CCl4(l) evaporates. In the box below, draw a particulate diagram to show the species in the container after some of the CCl4(l) has evaporated. The phases of the species should be indicated by the spacing and distribution of the particles in the diagram. Some of the species shown in the legend will not be used.
Generally
We will see from the diagram that when CCl4(l) is placed in a previously evacuated container at 30°C , and some of the CCl4(l) evaporates that the molecules of CCl4(g) becomes loosely held and apart from while in its closely held in its liquid state
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Scientists in a lab are working with two different samples of the element mercury. They know that the different samples are different isotopes.
Which property of the isotopes must be different?
a. the atomic number
b. the electric charge
c. the element name
d. the mass number
Answer:
A Mass number
Explanation:
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A man weight 235.0 Ib Express his weight in kg.
How do you find it?
Answer:
The answer is 106.59 and 1 lb = 0.45359237 kg.
Explanation:
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3-Mention the trends in atomic size,atomic number,mass number,reactivity,boiling & melting points.
Answer:
1 sec......................
Answer:
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Explanation: