How do the lengths of day contrast for the summer solstice and winter solstice?
Answers
When it is tilted away from the Sun, it is winter in the northern hemisphere. In between we have autumn and spring. The day that the Earth's North Pole is tilted closest to the sun is called the summer solstice. This is the longest day (most daylight hours) of the year for people living in the northern hemisphere.
Related Questions
Oceans can store large amounts of thermal energy. How does this affect climates?
Answers
Answer: It stabilizes the Earth's climate system
Explanation:
how does temperature affect spontaneity?
a. if triangleH and triangleS have opposite signs, the temperature will determine spontaneity.
b. if the temperature is high enough, any reaction will become spontaneous
c. temperature will affect spontaneity only if triangleH and triangleS are both positive
d. if triangleH and triangleS have the same sign, the temperature will determine spontaneity
PLEASE HELP TYSM!!!
Answers
Answer:
The correct option is d.
d) If ΔH and ΔS have the same sign, the temperature will determine the spontaneity
Explanation:
Consider the table attached at the bottom which shows Spontaneity and the sign of Enthalpy and Entropy terms.
We can clearly see from the table how temperature effects the Spontaneity.
If the signs of ΔH and ΔS are opposite, the spontaneity doesn't depend on the temperature.
If the signs of ΔH and ΔS are same, then the temperature effects the Spontaneity. If both have negative signs, reaction is spontaneous at low temperature. If both have positive signs, reaction is spontaneous at high temperature.
Answer:
D.
Explanation:
A pE x
GIVING BRAINLIEST!!!
Answers
Answer:
Pecan trees 1 and 4
Explanation:
1: 1 and 4
2a: With good soil and good parent plants
2b: Heredity
Answer:
Explanation:
1 and 4
With good soil and good parent plants
Heredity
What is the charge on the Cr in Cr2O72-
Answers
Answer:
+6.
Explanation:
So, a chromium atom here has an oxidation number of +6.
What is the name given to this group of elements?
a.
halogens
c.
transition metals
b.
alkali metals
d.
noble gases
Answers
Answer: The answer is A. Halogens
Explanation:
I hope this helps you :)
Our solar system consits of eight planets. Which phrase correctly describes a planet?
A. a large celestial body that is composed of gas and emits light
B. any one of the primary bodies that orbit a star
C. many stars held together by gravity
D. space and all the matter and energy in it
Answers
B. (twenty characters blah blah blah) Have a great day/night!
Make a list of different weather patterns (windy, rainy, sunny, snow, etc.) and the
barometric pressure that usually accompanies each of these weather conditions
Answers
Answer:
rainy javscsaka nauafaa jaahwgw jauagsusbwvNs qo hags qkw
7: How many times can a volcano erupt?
Answers
Answer:
Some small volcanoes only erupt once in their lives,
while other volcanoes erupt multiple times. Kilaeua volcano in Hawaii, which has been erupting continuously since 1983, is the world's most active volcano. While some volcanoes erupt at regular intervals, there are always exceptions to the rule
Answer:
small volcano's only 1 time while big volcano's mutiple times
Explanation:
What is NOT true about genes and chromosomes?
Genese are located on chromosomes
Chromosomes are in the nucleus
A single chromosome can contain hundreds of genes
All of these are true
Answers
Let us go option by option :
1) Genes are located in chromosomes. TRUE
Chromosomes are in cell nucleus. A chromosome contains hundreds and thousands of genes. A normal have 23 pairs of chromosomes, and a total of 46.
2) Chromosomes are the in nucleus.
TRUE
Chromosome is structure found in nucleus of the cell. It is made up of protein and DNA.
3) A single Chromosome can contain hundreds of genes.
TRUE
single Chromosome can contain hundreds of tgenes.
4) All of the above
TRUE
As all the statements above are true. The correct option is 4.
Answer:
all of them are true
Explanation:
this is because chromosomes contain genetic materials and it is present in the nucleus.
Therefore, the correct option is 4) all of these are true
no problem
How does the law of crosscutting relationships best explain the age of a FOLD caused by stress on the Earth's crust?
The fold is younger than the rocks it bends.
The fold is the same age as the rocks it bends.
The fold is older than the rocks it bends
The fold is older than any rock above or below
Answers
Answer:
The fold is the same age as the rock it bends
Explanation:
...
there's no science in the pick a subject, so i chose chemistry. NEED HELP ASAP
Answers
Answer:Trade winds blowing in a curved manner
Explanation:Because i like the answer
what is the function of the two microscope lenses?
Answers
What is an electromagnetic wave? Use the model to describe the characteristics of these waves.
Answers
Electromagnetic radiation contains waves of the electromagnetic field, which propagate through space and carry radiant energy. The radiations coming from the sun are electromagnetic waves.
What are electromagnetic radiations?Electromagnetic radiation possesses waves of the electromagnetic field, which travel via space and carry radiant energy. These waves include microwaves, radiowaves, infrared rays, visible light, UV rays, X- rays, and gamma rays.
Electromagnetic waves oscillate with the electric field and magnetic fields. Electromagnetic waves exhibit periodic changes in the electric field or magnetic field.
Depending on the periodic change in the waves that take place and the power produced in the waves, different wavelengths or frequencies of the electromagnetic spectrum are produced.
The effects of this radiation on chemical compounds and biological organisms are related to the power of the radiation and its frequency.
In order of increasing frequency and decreasing wavelength, electromagnetic waves are organized in the electromagnetic spectrum.
Learn more about electromagnetic radiation, here:
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Hello brainly user can you help me out thanks!
list the following items from smallest to largest
Grain of salt
E. coli bacteria
human
water molecule
skin cell
Answers
Water Molecule
Hemoglobin
Influenza Virus
Skin Cell
Grain of Salt Hope this helps!
Copper carbonate always has 5.3 parts copper to 4 parts oxygen to 1 part carbon. In other words, the ratio of copper to oxygen to carbon is 5.3:4:1. The picture shows that in a 103g sample of copper carbonate, there are 53g of copper, 40g of oxygen, and 10g of carbon. A sample of copper carbonate was found to contain 15.9g of copper. How many grams of copper carbonate were in the sample? Use the ratio of copper to oxygen to carbon.
Answers
Answer:
Atoms are rearranged during chemical reactions, and are not lost or gained. Chemical reactions can be represented using equations. Catalysts speed up reactions without being used up.
Part ofChemistryChemical reactions and tests
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Thermal decomposition
Some compounds break down when heated, forming two or more products from one reactant. This type of reaction is called thermal decomposition.
Many metal carbonates can take part in thermal decomposition reactions. For example, copper carbonate breaks down easily when it is heated:
copper carbonate → copper oxide + carbon dioxide
CuCO3 → CuO + CO2
Copper carbonate is green and copper oxide is black. You can see a colour change from green to black during the reaction. The carbon dioxide produced can be detected using limewater, which turns milky.
Green copper carbonate is heated in a test tube. It changes to black copper oxide and gives off carbon dioxide gas.
Copper carbonate is easily decomposed by heating
Other metal carbonates decompose in the same way. Here are the equations that represent the thermal decomposition of calcium carbonate:
calcium carbonate → calcium oxide + carbon dioxide
CaCO3 → CaO + CO2
Thermal decomposition is an example of an endothermic reaction, a reaction that gains energy from the surroundings. This is why thermal energy must be supplied constantly for the reaction to keep going. Note that some other reactions are exothermic reactions – they give out energy to their surroundings.
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From the ratio of copper to carbon and oxygen in copper carbonate, the mass of copper carbonate in grams containing 15.9 of copper is 30.9 g.
What is copper carbonate?
Copper carbonate is an ionic compound having the formula CuCO₃. It is a cyan colored water insoluble solid which can be converted to oxides. Copper carbonate is used as a pigment in paints and varnishes.
It is given that the ratio of copper to oxygen to carbon in copper carbonate is always 5.3 : 4 : 1. Thus, for a 10.3 gram of copper carbonate the mass of copper will be 5.3 g and mass of oxygen and carbon is 4 and 1g respectively.
Given that a sample of copper carbonate contains 15.9 g of copper. Let x g be the mass of copper carbonate. The sum of ratios of copper, oxygen and carbon is 10.3. Thus it is written as:
5.3 × X/ 10.3 = 15.9 g.
5.3 X = 163.7 g.
X = 30.9 g.
Therefore, the mass of copper carbonate in grams containing 15.9 of copper is 30.9 g.
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Direction is the path along which something is moving. Which of these words can be used to describe the direction of an object relative to another object?
Answers
an amount of space between two things or people.
Step by step explanation: it’s right
_____________________ are trying to create better batteries that can store more energy, so that electric cars can travel further on one charge.
Answers
Answer:
options?
Explanation:
i mean scientists fits so if any of the options have a scientist thats it
Answer:
Scientists, Chemists, engineers, inventors there is a wide range of answers but if there are options (like A. scientist B. chemists and so on) you need to edit your question and put them in
Explanation:
please help- the questions are in the image- this is due tonight
Answers
Answer:
the dogs weight will not change it will stay the same in the table hope this helps
Explanation:
Which of the following statements fully describes what an object may do when it experiences unbalanced forces? Select the two best answers.
A. It may change directions.
B. It will move at a constant speed.
C. It may slow down.
D. It may slow down or speed up.
E. It will stay stationary.
Answers
Answer:b
Explanation:
Develop models bonds can be placed on a scale that ranges from 100% ionic to 100% covalent. Use what you know about the types of bonds that specific elements tend to form to place each of the following compounds in the correct location on the scale: CO2, N2 , NaF, H2O
Answers
Answer:
Bonds can be placed on a scale that ranges from 100% ionic to 100% covalent.
CO2: CO2 is a covalent compound, with each carbon atom sharing electrons with two oxygen atoms. Therefore, it can be placed closer to the 100% covalent end of the scale.
N2: N2 is a covalent compound, with each nitrogen atom sharing electrons with another nitrogen atom. Therefore, it can be placed closer to the 100% covalent end of the scale.
NaF: NaF is an ionic compound, consisting of a sodium cation (Na+) and a fluoride anion (F-). Therefore, it can be placed closer to the 100% ionic end of the scale.
H2O: H2O is a polar covalent compound, with the hydrogen atoms sharing electrons with the oxygen atom, but the electrons are not shared equally, therefore the oxygen atom has a partial negative charge and hydrogen atoms have a partial positive charge. Therefore, it can be placed closer to the middle of the scale, between ionic and covalent.
Overall, the scale can be represented as follows:
100% Ionic <-------> NaF <-------> H2O <-------> CO2 <-------> N2 <-------> 100% Covalent
Oil is a powerful source of energy used for cars, machines, and many other purposes. While studying sources of energy that could replace the use of oil, a student thinks about solar power, wind power, nuclear power, and electric batteries. The students asks,"Which type of source will waste the least energy and provide the most energy in all situations?"
Which best describes why a scientist would ask a different question than this one?
O The question asks about subjective personal preferences regarding energy.
O The question focuses on the objective measurements of amounts of energy.
O The question has too wide of a focus, as though all situations can be studied at once.
O The question is focused on the future and finding new answers about changing needs.
Answers
Answer:
C
Explanation:
scientists usually focus on one specific problem, rather than a whole range. so the answer would be that it's too wide a focus.
btw this is where the crown is on the bottom of the question
Answer:
c
Explanation:
Can someone please put these atoms from most reactive to least reactive? Thank You!
1. Silicon
2. Magnesium
3. Sodium
4. Argon
Answers
3. sodium
2. magnesium
1. silicon
Which of these is an example of how engineers have contributed to society?
A. Our current understanding of viruses
B. The seven-mile bridge that spans across the Gulf of Mexico to
connect two cities of the Florida Keys
C. Nomadic tribes traveling in search of food to hunt and gather
D. The theoretical mathematics describing the orbits of planets
around the sun
Answers
Answer:
B.
Explanation:
One of the biggest examples of engineers' contribution to society is they link different communities together through transport infrastructure.
The seven-mile bridge was an engineering wonder. Seven Mile Bridge connects two cities of the Florida Keys that include Knight's Key and Little Duck Key and promotes the transportation of goods or several other services which was not possible at that time (1900s).
It is the longest bridge in the world and is constructed by using the “segmental” technique and engineers were acknowledged for their work.
Hence, the correct option is B.
please help me 7th grade science
When a chemical reaction occurs, what happens to the atoms of the two substances? Provide an example from the Sim (on Amplify) as evidence to support your answer.
When a chemical reaction does not occur, what happens to the atoms of the two substances? Provide an example from Sim as evidence to support your answer.
Answers
An example of this can be seen in the Sim on Amplify, where students can experiment with different chemical reactions. For instance, in the "Chemical Reactions" Sim, students can explore the reaction between iron and sulfur to form iron sulfide. In this reaction, the iron atoms and sulfur atoms combine to form a new compound, iron sulfide, with different properties than the original iron and sulfur. The atoms of the iron and sulfur are rearranged to form new bonds, resulting in the formation of a new substance. This is an example of a chemical reaction, where the atoms of the two substances are rearranged to form a new compound with different properties.
Answer:
Explanation:A chemical response is a chemical transformation in which two chemicals combine to create a third component.
(i) Adding diluted acid to an active metal causes the test tube to heat up and hydrogen gas to escape, which results in the production of heat.
(ii) When diluted hydrochloric acid is added to silver nitrate, AgCl, a white precipitate, results.
(iii) When water is added to quicklime, the mixture boils and produces heat along with a hissing sound.
(iv) Thermal breakdown of mercury oxide - Mercury turns from red to a metallic silver tint as a result of this process.
What landscape feature contributes to the dryness of deserts?
A. The open, flat areas of a desert prevent clouds from forming.
B. Desert canyons collect all water and funnel it out of the desert.
C. Desert lakes absorb all the water.
D. Mountains block the winds that bring rain clouds.
Answers
Answer:
As I'm Not % Sure I Can Say C & D don't seem Right, Leaving A & B Having Me to Think the Answer is A (Hope I'm Right Good-Luck)
Explanation:
Answer: Mountains block the winds that bring rain clouds.
Explanation: By acting as obstacles to the flow of air masses, mountains contribute significantly to the dryness of deserts. Orographic lifting is a process that occurs when moist air is forced to ascend as it approaches a mountain range. The moisture in the air condenses and forms clouds as the air cools as it climbs. As a result, on the windward side of the mountains, the air loses a lot of its moisture as precipitation. The air has already lost a significant amount of moisture by the time it reaches the leeward side of the mountains, creating a rain shadow effect. On the leeward side of the mountains, this impact results in a dryer area that is often a desert. Consequently, the existence of mountains influences
Please help me por favor :'(
Answers
Please draw a diagram of how a magnetic field works around a magnet. Please label.
Answers
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How does an atom change if all of its electrons are removed?
p.s. I'll mark the first answer the brainliest if it is correct! ;)
a. The atom’s volume increases.
b. The atom’s mass increases.
c. The atom becomes positively charged.
d. The atom becomes negatively charged.
Answers
c. The atom becomes positively charged
if the electrons are removed it means theres no longer a negative charge to balance the positive charge of the protons in the atom
What is formed when the number of electrons is changed?
Question 1 options:
ion
radioisotope
isotope
a new element
Answers
Answer:
ions.....................
Answer:
ions? t.b.h i have no idea
What is an ellipse please help)
Answers
In mathematics, an ellipse is a plane curve surrounding two focal points, such that for all points on the curve, the sum of the two distances to the focal points is a constant. As such, it generalizes a circle, which is the special type of ellipse in which the two focal points are the same.
Maybe they might use that math thing for Science.