which step happens before mitosis? a. anaphase b. telophase c. interphase d. metaphase
Does hot water tend to rise or sink?
Name the physical properties that many ionic compounds share.
which ratio forms a proportion with 16/20? 4/10, 32/50, 8/12, 4/5. PLZ HELP
Answer:
4/5
Explanation:
Answer: 16/20 reduces to 4/5 it is proportional
In comparison to the rock it intrudes, what is the relative age of a dike?
always older than the rock it intrudes
always younger than the rock it intrudes
always older than the very top layer
always older than the last layer it intrudes
Always younger then the rock it intrudes is the right answer)
ANSWER QUICK I AM RUNNING OUT OF TIME WILL BRAINLY, FRIEND, THANK, RATE YOU CAN PICK IF ANSWER CORRECTLY i have 6 ?s ANSWER I WILL BRAINLY Which storm is likely to cause quick destruction along a narrow path?
A.
tornado
B.
hurricane
C.
thunderstorm
Which clouds are best associated with a thunderstorm?
A.
high cumulonimbus
B.
towering funnel clouds
C.
swirling clouds with a calm center
Which statement best describes the formation of a hurricane?
A.
Air pressure differences over the ocean cause fast, spinning winds.
B.
An updraft of warm, moist air builds a cumulonimbus cloud.
C.
A downdraft of air meets spinning updrafts.
How are hurricanes and thunderstorms similar?
A.
Both cover an area as large as 650 km.
B.
Both involve the formation of large cumulonimbus clouds.
C.
Both form when warm air rises, then cools quickly to form clouds.
Is this statement true or false?
Hurricanes are classified by three stages in which updrafts of air billow up, updrafts and downdrafts swirl the wind up and down, then downdrafts cause clouds to come apart.
A.
True
B.
False
Which severe weather condition forms over warm, tropical areas?
Answer:
1. A. Tornado
2. A. High cumulonimbus
3. A. Air pressure differences over the ocean cause fast, spinning winds.
4. C. Both form when warm air rises, then cools quickly to form clouds.
5. B. False
6. A. Tornado
Explanation:
A tornado is a column of air with high angular velocity whose lower end is in contact with the earth's surface and the upper end with a cumulonimbus cloud. It is short and short in duration, ranging from seconds to over an hour and destroying what is in its path on a narrow path.Storm clouds have their origin in the cumulus type. They are the ones that are isolated and that look like a white cotton ball.If it continues to grow, its upper part will be rounded and form like a small bald spot, called cumulonimbus calvus. Now they are associated with huge waterspouts, but without an electrical device. When lightning and thunder appear, we will have reached the mature phase of the storm and there is talk of cumulonimbus capillatus. Its upper part resembles a chapel or anvil, that is, the storm in its purest form.
Hurricanes are formed by the accumulation of thunderstorms that move over warm ocean waters. When the warm air from the storm and the ocean surface combine, they begin to rise in eddies. This generates low pressure on the ocean surface.The scale with which the intensity of hurricanes is measured is known as Saffir-Simpson, and it divides them into 5 categories according to the speed of their winds and cyclonic activity, which is an abnormal increase in sea level after a storm. The scale also calculates the damage that can occur when the hurricane makes landfall.PLEASE HELP!
Which nonmetals have similar chemical properties? Check all that apply.
sulfur
nitrogen
selenium
oxygen
carbon
fluorine
It is sulfur, selenium, oxygen
Sulfur, selenium, oxygen
Explanation;Sulfur, selenium, and oxygen are non-metals that have similar chemical properties. They belong to a group called the oxygen family. Oxygen family is composed of elements oxygen, sulfur, tellurium, selenium and polonium. Each element in this family has six valence electrons in the outermost energy level. They therefore require two electrons to acquire a stable configuration or octet configuration. Thus, they have a valency of two.a chemical formula shows the kind and number of Atoms that form a what? compound, mixture, solution, or suspension
A chemical formula shows the kind and number of atoms that form a compound.
What is compound?Any substance made up of similar molecules with atoms from two or more different chemical elements is referred to as a chemical compound.
Atoms from more than 100 different chemical elements, both in their pure forms and when mixed to form chemical compounds, make up all matter in the universe.
Atoms combine to form a compound. For example hydrogen when combine with oxygen it form a water.
A compound is a completely chemically pure entity that is created from two or more separate chemical ingredients. They are kept together by chemical bonding and have an established atom composition.
Therefore, A chemical formula shows the kind and number of atoms that form a compound.
To learn more about compound, refer to the link:
https://brainly.com/question/13516179
#SPJ2
What can you infer about the volume of an object imagined with a greater mass?
how can you make a solution saturated
The chemical combination of two or more substances which can ONLY be separated by chemical means is called a(n) ________________. A) Element B) Orbit C) Mixture
Consider the following equation in chemical equilibrium.
C2H4(g) + H2(g) = C2H6(g) + 137 kJ
What happens to the amount of ethane (C2H6) when the temperature of the system is increased?
A.The amount of ethane decreases.
B.The amount of ethane increases initially and then decreases.
C.The amount of ethane increases.
D.The amount of ethane decreases initially and then increases.
24 POINTS AND 5 STARS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Consider the free body diagram. It is a graphic representation of Mike exerting a force on a refrigerator. Four balanced forces are acting on the refrigerator in this case, No matter how hard Mike pushes, he cannot move the refrigerator. Mike asks Bill to help him. Both men push with 2N of force.
If Mike and Bill both push on the refrigerator, all BUT ONE statement would be true.
A. If both men push, they each use about half as much force.
B. Mike is still using the same amount of force he originally used.
C. The force is most likely doubled, while the mass remains the same.
D. Combined, about twice as much force is exerted on the refrigerator.
Answer : A) If both men push, they each use about half as much force.
Explanation : If both men push, they each use about half as much force. Mike needs Bill to increase the force on the refrigerator. Two men equals two times the force. The force of each is not reduced.
Hope this helps you!
energy from the sun travels to the earth through
A. convection
B. carbon dioxide
C. radiation
D. infared radiation
Answer:
D. Infrared Radiation
I hope this helps.
What is number 3-6....plz help
New cells are created from A) matter. B) energy. C) other cells. D) non-living matter.
Answer: C) other cells.
Explanation: I took the Pre-Test on USA Test Prep.
QUESTION OF THE DAY!
A student found a spider, tick, fly, and a bee in his backyard. After studying their bodies and doing some research, he concluded that their _____ performs the major life functions.
Wings
Legs
Eyes
Cells
Which of these equations is balanced? a. H2SO4 + 2Al → Al2(SO4)3 + H2 b. 2KCl + Pb(NO3)2 → 2KNO3 + PbCl2
five examples of failed experiments that produced valuable information
The following examples of failed experiments that produced valuable information
1) Bubble Wrap: The scientists were trying for trendy new textured wallpaper, they failed miserably ,however the new wrap was a breakthrough in packing industry
2) Pacemaker: During development of a heart rhythm recording device, Greatbach pulled out the miss sized small resistor which sounded like a human heartbeat and thus leads to development of pacemaker
3) Synthetic Dyes are also discovered during synthesis of antimalarial drug
4) Radioactivity : it was also a serendepity
5) Discovery of penicillin.
Why don't we notice changes in the elevation of the land due to the moons pull?
QUESTION 3
What are the results of desertification?
loss of farmland
populations will increasingly immigrate to deserts
sand increases the destruction of predators
increase in vegetatation
The result would be: loss of farmland
Answer:
Loss Of Farmland :P
Explanation:
What is the acceleration of a 100 kg canoe that feels a force of 1000n?
The acceleration of a 100 kg canoe with a force of 1000 N applied to it is 10 m/s²,
calculated using the formula a = F / m.
The acceleration of a 100 kg canoe that feels a force of 1000 N can be calculated using Newton's second law of motion, which states that acceleration is equal to the net force divided by the mass of the object. Hence, the acceleration a is given by the formula:
a = F / m
Where F is the force exerted on the canoe and m is the mass of the canoe. Substituting the given values:
a = 1000 N / 100 kg = 10 m/s²
Therefore, the acceleration of the canoe is 10 meters per second squared (m/s²).
Which statement about an element’s average atomic mass is correct? a. It is determined by counting the number of isotopes in a sample of the element. b. It is equal to one-twelfth the mass of the most common isotope. c. It is a weighted average, so common isotopes have a greater effect than uncommon ones. d. It is based on an isotope’s charge, so negatively charged isotopes have a greater effect than positive ones.
The answer is: C. It is a weighted average, so common isotopes have a greater effect than uncommon ones.
Isotopes are chemical elements with same atomic number, but different mass number (different number of neutrons).
Isotope of chlorine-35 has mass number 35. Mass number is sum of protons and neutrons, so number of neutrons in chlorine-35 is 18 (35-17).
Isotope of chlorine-37 has mass number 37. It has 20 neutrons (37-17).
Because the average atomic mass is closer to chlorine-35, there is more this isotope in nature.
FeO+HNO3➡
Chemistry reaction
Final answer:
The reactions listed are examples of redox reactions involving iron and various reagents, demonstrating the oxidation and reduction processes in iron chemistry when FeO reacts with HNO3 and other similar compounds.
Explanation:
The provided information suggests a variety of chemical reactions involving iron compounds reacting with different reagents. For instance, when FeO reacts with HNO3, a typical reaction might involve the iron(II) oxide (FeO) being oxidized to iron(III) nitrate, while nitric acid acts as the oxidizing agent and gets reduced in the process. Other reactions listed include the transformation of iron in different oxidation states, the reaction of iron compounds with bases and acids, and the decomposition of iron salts under heat.
These reactions represent a class of redox reactions, where transfer of electrons occurs, indicating changes in the oxidation states of the involved species. Examples given such as Fe being heated in air (oxidation), and the interaction of Fe(NO3)2 with HNO3 in the presence of air show the complexity and variety of iron chemistry.
QUESTION 2
What agent causes sand dunes to form?
ocean waves
weathering of old rocks in the desert
the wind carries the sand until it runs into an obstacle
gravity
The answer to your question would be:: the wind because it carries the sand until it runs into an obstacle
Sand dunes: These are small hills made up of lose sand.
During formation of dunes ( in deserts or sea shores) there is creeping of sand particles along one side and there is sliding of sand on other side resulting in formation of a dune.
Thus the agent causes sand dunes to form is the wind carries the sand until it runs into an obstacle
Which type of cell is a rose thorn? prokaryotic eukaryotic plant eukaryotic animal chloroplastic
Rose thorn is a eukaryotic plant cell. It is a type of eukaryotic cell.
What is eukaryotic cell?Eukaryotic cell is defined as the cells with a well-organized nucleus and organelles surrounded by membrane-bound organelles.
The major difference between plant cell and animal cell is that one cell has lysosome present in it while other does not have lysosomes.
It can also be defined as the cell that contain the nucleus, mitochondria, and endoplasmic reticulum are all membrane-bound organelles.
There are various cell present in the eukaryotic cells sech as
MitochondriaEndoplasmic reticulumNucleusCytoplasm Golgi bodiesRibosomes etc. and many more are present.Thus rose thorn is a eukaryotic plant cell. It is a type of eukaryotic cell.
To learn more about eukaryotic cell, refer to the link below:
https://brainly.com/question/11351358
#SPJ2
The correct answer is eukaryotic plant.
A rose thorn is a part of a rose plant, and like all plant cells, it is classified as a eukaryotic cell. Eukaryotic cells are characterized by the presence of a true nucleus and other membrane-bound organelles. Additionally, plant cells contain chloroplasts, which are the sites of photosynthesis, and a rigid cell wall that provides structure and support to the plant. Since a rose thorn is part of the plant's defense mechanism and not an animal cell, the correct classification is eukaryotic plant cell. Chloroplastic is not a cell type but rather refers to the presence of chloroplasts within plant cells.
Which soil layer is the least similar to the underlying rock
Which of the following substances has
a higher melting point than water?
A salt
B sugar
C flour
D all of the above
Answer:
D all of the above
Explanation:
Melting point represents the exact temperature at which the solid state changes to the liquid of a given substance. Water is one of the most commonly used elements to exemplify the melting point principle. For this solid state (ice) to take the form of liquid water, it must be exposed to a temperature of at least 0 °C. Thus, the melting point of water is equal to 0 °C.
The salt has a melting point of 801 ° C, the melting point of sugar is 185 ° C and the melting point of flour is 264 ° C. From this we can see that all these products have a higher melting point than water.
Check all items common to bases. More than one answer can be chosen.
minerals
metals
gases
H+
OH-
nitrogen
Answer: Metal, OH-.
Explanation:
Bases are characterized by the formation of OH- which results when the bases are dissolved in water. Bases that produce many OH- ions in water solution are strong bases. Those that produce few OH- are weak bases. Since it produces hydrogen and hydroxide ions, water has characteristics of both acids and bases.
All bases contain at least one metal plus hydrogen and oxygen combined in a hydroxide ion.
Hope this helps!
Please mark Brainliest! :)
Bases can be neutral molecules, anions, or cations that accept protons to form water. The hydroxide ion is a characteristic feature of common bases.
Explanation:Bases fall into three categories: neutral molecules like H₂O, NH3; anions like OH¯, HS¯; and cations like [Al(H₂O)5OH]²†. Common bases include NaOH and Ca(OH)2 that contain the hydroxide ion OH¯. Bases accept protons from acids to form water through the reaction: H+ + OH¯ → H₂O.
A white solid can be purified from lemon juice. This solid tastes sour. When placed into water the solution conducts electricity and has a pH of 3.0. The solution turns litmus paper red. When the white powder is reacted with sodium hydroxide, a different white powder is formed which tastes salty. What kind of substance is the original white powder isolated from lemon juice?
Explanation:
When a solution is acidic in nature then it means its pH range is from 1 to 6.9. And, in an acidic solution there are more number of hydrogen ([tex]H^{+}[/tex]) or hydronium ([tex]H_{3}O^{+}[/tex]) ions as compared to hydroxide ions ([tex]OH^{-}[/tex]).
Some properties of acids are as follows.
Acids taste sour.Acids show a pH value less that 7.Acids release hydrogen ion upon dissociation in water of polar solvents.Acids turn blue litmus into red.Now, since the white solid substance isolated from lemon juice shows all the properties of being an acid.
Thus, we can conclude that the original white powder isolated from lemon juice is an acidic substance.
The white solid isolated from lemon juice is citric acid.
It has a sour taste, an acidic pH, and turns litmus paper red.
When reacted with sodium hydroxide, it forms sodium citrate, which tastes salty.The white solid isolated from lemon juice is citric acid.Here's how we can identify it:
Acidic Properties: Citric acid is known for its sour taste and acidity. The description mentions that the solid tastes sour and creates a solution with a pH of 3.0, which is characteristic of an acid.Conductivity: When dissolved in water, the solution conducts electricity, indicating the presence of ions, a common property of acids.LLitmus Test: The solution turns litmus paper red, confirming its acidic nature.Reaction with Sodium Hydroxide: When the citric acid reacts with sodium hydroxide (a base), it forms a different white powder, in this case, sodium citrate, which is salty to taste.Summary
Considering all the characteristics described, the original white solid is citric acid, a common component of lemon juice.