Answer:
A period is a horizontal row of the periodic table.A group is a vertical column of the periodic table, based on the organization of the outer shell electrons. There are a total of 18 groups.
Hope this answer helps
To determine the melting point/freezing point or evaporation/condensation point, identify the point where the temperature of the substance _____.
changes
remains constant
Answer:
I believe the answer would be changes
Explanation:
The point in which substances freeze and melt or evaporate/condensate, are temperature changes. I hope this helps
Answer:
changes
Explanation:
Which are found in mountain streams where the slope is steep and the channel is rough, irregular, and full of large boulders?
A.lakes
B. rapids
C. estuaries
D. meanders
Use your periodic table to determine which element in the group below would be least likely to react with the other elements ?
Select one:
A || Carbon
B || Neon
C || Boron
D || Oxygen
Answer:
Neon
Explanation:
Neon is a noble gas. Noble gases do not react with other elements. Carbon, Boron, and Oxygen would all react with each other.
The pH of solution A is 4 and the pH of solution B is 6. Which has a greater concentration of H3 O +ions and how many time greater? Your answer should include a letter (which solution) and a number. PLEASE ANSWER QUICK IN A TEST
Answer:
Each whole pH value below 7 (the neutral point) is ten times more acidic than the next higher value. For example, a pH of 4 is ten times more acidic than a pH of 5 and 100 times (10 times 10) more acidic than a pH of 6.
Explanation:
How are mixtures and solutions different?
1.Unlike a solution, a mixture has density and will always sink in a liquid because mixtures lack buoyancy.
2.Unlike a solution, a mixture can dissolve completely in a liquid because the properties of the ingredients change.
3.Unlike a solution, a mixture is unable to change states of matter from a solid to a liquid or gas.
4.Unlike a solution, a mixture can easily be separated and each ingredient keeps its physical properties.
Answer:
The answer is 4.
Explanation:
Take trail mix as a mixture. It can easily be separated by hand. Take sugar in hot coca as a solution. You cannot separate sugar from the hot coca with your hands.
Answer:
4
Explanation:
im literally taking the quiz 222
What types of matter have the property of density?
1.Everything except gasses have density.
2.Only heavy matter has density.
3.All solids, liquids, and gases have density.
4.Only solid matter has density.
Answer:
all solids, liquids and gases have density
The types of matter which property of density can be attributed with are;
.All solids, liquids, and gases have density.
Density can be regarded to as one of the characteristic property of a substance. The density of a substance expressed the relationship that the particular substance has with the mass of the substance as well as its volume which is how much space it takes up.The mass of a particular atoms, as well as how they are been arranged and their size, determine the density of a substance.Both solid , liquid as well as gas has density.For instance, density of water is 1000kg/cm^3Therefore, option C is correct.
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Help plz, don't paste link for answers, not going to help at all
True or false
Ice or snow melts into water in sublimation.
Answer:
the answer is : true ice and snow melts into water in sublimation
Which of the following are also compounds? Select all that apply.
A.
H2O
B.
CuFeS2
C.
Cl
D.
Mg
E.
KCl
Water, copper ferrous sulphate and potassium chloride are the compounds. Therefore, option A, B and E are correct.
What are compounds ?A chemical compound is a substance that contains atoms from many chemical elements bonded together by chemical bonds. It is made up of numerous similar molecules. Therefore, a molecule made up of only one type of atom is not a compound.
When various atoms are linked or chemically bound together to form molecules, the result is a compound. Water is an example of a compound. Due to the chemical bonding of two hydrogen atoms and one oxygen atom, water is known chemically as H2O.
Substances that cannot be divided into less complex substances with differing properties are known as elements. The periodic table is an arrangement of elements according to their properties. A molecule is made up of two or more atoms. Compounds are molecules made up of more than one element.
Thus, option A, B and E are correct.
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Which statements accurately describe parasite-host relationships? Check all that apply.
Parasites can live in or on their hosts.
Parasites benefit from their hosts.
Parasites are harmed by their hosts.
Parasites usually kill their hosts.
Hosts benefit from parasites.
Hosts are harmed by parasites.
Parasites can live in or on their hosts, they benefit themselves from their hosts and usually kill their hosts and hosts are harmed by parasites this is called parasitism.
What is Parasitism?A parasitism is a kind of symbiotic relationship in which two species lives in close association. In this association one species is benefited by harming the other species so as to derive nourishment and shelter. The species which causes harm is called as the parasite the species which is being harmed is called as host. In parasitism the parasitic as well as the host species evolve together. The parasite is adapted to live in the host body in adverse conditions too. Also the host is adapted to get rid from the parasite and attain a protection from the parasitic damage.
Therefore, first, second, fourth and sixth statements are correct.
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How could you use a model to show the cause-and-effect relationship between Earth's rotation and the apparent motion of the stars across the night sky?
Question:
How could you use a model to show the cause-and-effect relationship between Earth's rotation and the apparent motion of the stars across the night sky?
Answer:
Gravity? or density because of the pull from the sun.
We can describe the cause-and-effect by showing the rotation of earth and its effect on the apparent motion of the stars across the night sky.
What is rotation of Earth?Rotation of earth means, spinning motion of earth at its own position as a result of which day and night will occur.
Because of the motion of earth will night occur and at the night time stars will travel from east to west direction. And polar starts will rotate with the pole star at center making a circular trial.
Hence, the above model is used.
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Which federal agency protects ecosystems and supervises public access to forests?
A,Bureau of Land Management
B.National Park Service
C.US Forest Service
D.US Fish and Wildlife Service
Answer: C.US Forest Service
Explanation:
Answer:
b.
Explanation:
Help pick me if your finding a question
I'd say the 2nd option
Is due at 1m ill give you brainlist if is right please helppp meee
The variability of living organisms, including within or between species or ecosystems is called?
Answer:
Diversity is the correct option.
30 POINTS
Tsunamis are huge waves that carry large amounts of energy across the ocean. They are often caused by underwater earthquakes. One a tsunami forms, the wave can travel hundreds of kilometers before reaching land. Are the water molecules that touch land the same ones that the earthquake initially moved? Why or why not?
Answer:
Some of them yes but some of them no.
Explanation:
When the tsunami moves across other bodies of water it initially gets bigger. When it is moving across the water it is picking up molecules as well as dropping them off. But the farther away the tsunami gets from the water the smaller it gets.
Some of the water on land may be initaited by earthquake or may be not.
What is tsunami?Tsunami is a natural disaster, which causes the large destroy of natural lands, forests, habitats of many living beings, etc.
As it is mention that tsunami is caused by the earthquake which is occured underwater and as a effect of this, waves of ocean can travel hundreds of miles before touching the land. So, it is not necessary the water molecules which touches the land after this disaster is always that ones which are initiated by the earthquake.
Because during the travelling process may be some water will again drop off in the ocean or some may get evaporate.
Hence, it may be the water initiated by the earthquake or may be not.
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Water boils at 100 degrees
Group of answer choices
Celsius
Fahrenheit
Kelvin
Answer:
celcius
Explanation:
Water boils at 100 degrees Celsius at sea level.
What condition creates the largest ocean wave
An unlabeled hierarchical diagram of various astronomical bodies is shown below. The labels A, B, C, and D can be used to represent the Milky Way, universe, planets, clusters, and stars.
Part 1: Which four astronomical bodies would you choose to represent the four labels in the diagram?
Part 2: Justify your choice based on the hierarchical relationships in astronomical bodies.
Which example of variation within species (select all correct answers)
There is no change in temperature during a phase change as this energy is being used to make or break bonds between molecules.
True
False
Answer:
false
Explanation:
Which of the following is an example of a dogs phenotype?
A. LI
B. Long tail or short tail
C. Breathes oxygen
D. Eats food