Answer:
he Aztecs had two calendars called the xiuhpohualli and the tonalpohualli. They differed in several ways. The xiuhpohualli was a 365-day calendar.
Explanation:
Why is it important to control all of the variables except one in an experiment?
How do you think heat moves through Earth's atmosphere?
Answer:
Conduction, radiation and convection all play a role in moving heat between Earth's surface and the atmosphere. Since air is a poor conductor, most energy transfer by conduction occurs right near Earth's surface. Conduction directly affects air temperature only a few centimeters into the atmosphere.
Explanation:
. Define reference point in your own words. DONT COPY AND PASTE?
why is trustworthiness important?
Trustworthiness is one of the most important qualities in life. It is the quality on which all relationships are built. We are designed to be in relationship with others, and being able to TRUST each other means that we can do more together.
Scientists are working with a liquid that is made of only one type of atom. Which statement correctly describes this liquid?
The liquid contains only one compound.
The liquid contains only one element.
The liquid contains only neutral electrons.
The liquid can be broken down into simpler substances.
Answer:
Answer Is B
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Answer:
B
Explanation:
A model of an atom shows eight electrons in rings that represent different energy levels. How many electrons are in each energy level?
A. two in the first energy level, six in the second energy leve
B. eight in the first energy level, zero in the second energy level
C. zero in the first energy level, eight in the second energy level
D. four in the first energy level, four in the second energy level
Which statement about an atom is correct?(1 point)
A. The neutron has no charge and is found outside of the nucleus.
B. The electron has a negative charge and is found outside of the nucleus.
C. The proton has no charge and is found in the nucleus.
D. The neutron has a negative charge and is found in the nucleus A student wants to draw a model of an atom.
Which statement describes how to find the number of neutrons to include in the model?(1 point)
A. Subtract the atomic number from the mass number.
B. Add the number of electrons to the number of protons.
C. Subtract the number of electrons from the number of protons.
D. Add the atomic number and the mass number.
What is the atomic number of an atom?(1 point)
A. the number of particles outside the nucleus
B. the number of particles in the nucleus
C. the number of neutrons
D. the number of protons
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Energy levels are arranged in increasing order of magnitude in accordance with the Bohr model.
The correct sequence of answers is as follows;
1) two in the first energy level, six in the second energy level
2) The electron has a negative charge and is found outside of the nucleus.
3) Subtract the atomic number from the mass number.
4) the number of protons
An atom contains a nucleus and electrons arranged in energy levels outside the nucleus. Each energy level is filled with electrons.
The first energy level contains only two electrons, subsequent energy levels contain a maximum of eight electrons.
The proton is positively charged, the neutron has no charge and the electron is negatively charged. The proton and neutron are found inside the nucleus while the electrons are negatively charged and found outside the nucleus.
The mass number is the sum of the number of protons and neutrons. hence the number of neutrons is the difference between the mass number and the number of protons.
The number of protons in an atom is its atomic number.
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What was the name for the spectrum of specific wavelengths produced by an existing element?
What can you infer from the fact that metals are good conductors of electricity?
A.electrical appliances made of metal are dangerous B Most electrical wiring is made of metal C all non-metallic objects, like water and the human body, are poor electrical conductors D metals also make good insulators
Answer:
B
Explanation:
makes sense
Metals are good conductors of electricity that's why most electrical wiring is made of metal.
What are metals?Metals are those elements which are mainly present in the s-block and d-block of the periodic table and they are opaque and lustrous elements.
Most important property of the metals is that they are good conductor of electricity due to the formation of ion (cation) property. And because of only this property metals are used in the electrical wiring materials.
So, we conclude that most electrical things are made up of metal.
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The results of an experiment should be or should not be changed if they do not match the hypothesis of the experiment? ______________________________________. _______________________________: a trial result which is far different from the other trial results. _______________________________: a scientific investigation often done in the field using the five senses, and in which no variables are changed on purpose.
Answer:
Should not be changed
Explanation:
If someone said a particular metal had "hardness," what would she mean? A.it can't be bent easily B.it can't be stretched out easily C.it can't be scratched easy D.if you bent it, it can't go back to it's original shape {[(send me a friend request please)]}
Define position and reference point in your own words. Dont copy and paste!
Answer: The beginning stage you decide to depict the area, or position, of an object.
Explanation: starting point or position
200 milliliters is equal to:
Answer:
0.2 Litres
Explanation:
There are 1000 milliliters in a liter so 200 millimeters is equal to (200/1000) 0.2 litres.
Not quite sure what type of answer you were looking for but I hope this hoped anyway!
Answer:
O. 2 litres /200 cm³
Explanation:
Litre:200 divided by 1000 coz one litre is equal to 1000 millilitres and Inorder to convert between smaller to bigger units you divide. Cubic centimetre:because one cubic centimeter equals one millilitres therefore 200ml will be equal to 200cm³
A molecule _____.
A. is made of more than one atom
B. must be made of more than one element
C.can only contain two atoms
D. is the same as a compound
Describe how Newton’s third law applies in a sports game. You choose the sport!
Answer: When you strike a tennis ball with a racket, the slight springyness of the racket allows the ball to propel forward
Explanation:
Which phases does water go through if you use distillation to separate it from dissolved sugar?
Answer:
a physical change
Explanation:
here's why a chemical change produces new chemical products in order for sugar and water to be a chemical change something new would need to resolve a chemical reaction would have to occur
2. Sketch an example where an object appears to be moving from one reference frame but stationary from another reference frame
To solve this we must be knowing each and every concept related to motion. Therefore, earth revolving around sun is an example where an object appears to be moving from one reference frame but stationary from another reference frame
What is motion?Motion is the phenomena in physics when an object shifts positions over time. The variables of distance, speed, displacement, acceleration, velocity, and time are used to compute or characterize motion.
Because the streets are the ball's frame of reference when rolling down the street, rather than whatever might be on the other side of the road or the Earth, you can know the ball is moving. These are all just frames of reference. All motion data will be contrasted with a frame of reference. Earth revolving around sun is an example where an object appears to be moving from one reference frame but stationary from another reference frame
Therefore, earth revolving around sun is an example where an object appears to be moving from one reference frame but stationary from another reference frame
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Do question 4 thank u
Answer:
Mr. crabs conclusion is that after eating the patties, there breath will smell better.
Explanation:
Provide the chemical symbol for three molecules that are not compounds. (___, ___, and ___.)
Please help! I haven't been able to find the answer anywhere :(
Which of the following is an example of a physical property? A. A nail rusting B. Table salt melting C. A camp fire burning D. A silver spoon tarnishing
Answer:
a nail rusting
Explanation:
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Give an example of how you could use different reference frames for the same motion.
Answer:
Motion is defined as a change of position. How we perceive motion depends on our frame of reference. Frame of reference refers to something that is not moving with respect to an observer that can be used to detect motion.
Explanation:
Illustrate two different objects with before and after scenes. One with high speed but no acceleration and one with low speed and high acceleration.
Define reference frame in your own words. Give an example of how you could use different reference frames for the same motion.
Answer:
Reference frame can be defined as from the perspective of an individual to tell if an object is moving.
Example:
Eienstien used a reference frame in his train thought experiment.
What is similar about how floodplains and alluvial fans form? What is different?
Give an example of how you could use different reference frames for the same motion.
To solve this we must be knowing each and every concept related to motion. Therefore, in below given ways we can use different reference frames for the same motion.
What is motion?Motion is the phenomena in physics when an object shifts positions over time. The variables of distance, speed, displacement, acceleration, velocity, and time are used to compute or characterize motion.
Because the streets are the ball's frame of reference when rolling down the street, rather than whatever might be on the other side of the road or the Earth, you can know the ball is moving. These are all just frames of reference. All motion data will be contrasted with a frame of reference.
Therefore, in below given ways we can use different reference frames for the same motion.
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Why do you need a reference point when describing motion in your own words?
Answer:
because you wont know if its moving
Explanation:
In which biome would you most likely find plants that grow far apart from one another, with narrow leaves and shallow roots? Why do these plants have these adaptions?
Please help!?
Answer: Answer. A plant with narrow leaves and shallow roots would probably be found in the desert, where there is not a lot of water.
Explanation:
Answer:
A plant with narrow leaves and shallow roots would probably be found in the desert, where there is not a lot of water. Narrow leaves help prevent water loss.
Explanation:
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Quantitative/Qualitative information obtained during your observations what is the term that would correspond to this definition?
Answer:Quantitative data are used when a researcher is trying to quantify a problem, or address the "what" or "how many" aspects of a research question. It is data that can either be counted or compared on a numeric scale.
Explanation:Qualitative data describes qualities or characteristics. It is collected using questionnaires, interviews, or observation, and frequently appears in narrative form.
Answer:
Explanation:
Qualitative data describes qualities or characteristics.
Quantitative data are used when a researcher is trying to quantify a problem, or address the "what" or "how many" aspects of a research question.