Answer:
Explanation:
Hello! Hope this helps!
One important measure of the rate at which a radioactive substance decays is called half-life, or t1/2. Half-life is the amount of time needed for one half of a given quantity of a substance to decay. Half-lives as short as 10–6 second and as long as 109 years are common.
Please help y’all I don’t understand
Answer:
2 electrons
Explanation:
If you look at the periodic table, you will see that oxygen is in group 16. If you subtract 10 from 16, you will get 6 electrons, which means oxygen has 6 valence electrons. In order to become stable, you need 8 electrons. So add 2.
Which produces more energy, aerobic respiration or fermentation
Answer:
Aerobic Respiration.
Explanation:
Aerobic respiration refers to the metabolic pathways by which organisms break down glucose to produce ATP. ... Fermentation produces relatively less energy than respiration, because fermentation does not result in the complete oxidation of glucose.
Explain how convection transfers heat. Use information from this video above. Make sure you include the words: heat, density, convection, particles in your answer.
The heat in particles travels through convection at a certain speed depending on what density a mass has.
Describe reflection using the terms incident ray and reflected ray.
if you don't know, don't answer.
Answer:
A ray of light that hits a polished surface is called an incident ray and a ray of light that gets reflected is called a reflected ray. The point at which the light hits the surface is called the point of incidence. A line perpendicular to that point is called the normal.
Explanation:
I want to answer correctly and not for the points.
A closed container in lab contains a sample of oxygen gas. When the temperature in lab is 16.3 degrees Celcius, the pressure in the container is 9.30 atm. What would the temperature in lab be (in Celcius) if the pressure in the container was 17.7 atm? Assume the mol and volume of the container are constant. Record your answer as a number with the correct significant figures.
Answer:
T₂ = 550.60 K
Explanation:
Given data:
Initial temperature = 16.3°C (16.3+273 = 289.3 K)
Initial pressure = 9.30 atm
Final temperature = ?
Final pressure = 17.7 atm
Solution:
According to Gay-Lussac Law,
The pressure of given amount of a gas is directly proportional to its temperature at constant volume and number of moles.
Mathematical relationship:
P₁/T₁ = P₂/T₂
Now we will put the values in formula:
9.30 atm / 289.3 K = 17.7 atm/T₂
T₂ = 17.7 atm × 289.3 K / 9.30 atm
T₂ = 5120.61 atm. K /9.30 atm
T₂ = 550.60 K
Answer:
????????
Explanation:
With unbalanced forces, the object will move in the direction of the _____ force.
A) cannot be determined
B) larger
C) equal
D) smaller
Answer:
b: LARGER
Explanation:
im just different :)
please helpppppppp.will give 12 points
Answer:
Heat
Explanation:
When energy transfers, due to the difference in temperatures, the energy that is passed on from a surface to another surface is heat. Therefore, we get heat transfer. Heat transfers happen in 3 ways radiation, convection, and conduction.
Hoped this helped!
Make an observation about the average height of the beanbag for each mass dropped. How does it compare with your calculated kinetic energies for each mass? When the bottle has more mass, does the beanbag seem to travel to greater heights? Record your general observations in Table A.
Answer:
The more mass the bottle has the higher the beanbag goes.
Explanation:
thank you.
pleassssse helpppppp
Answer:
Solar Energy
Explanation:
Scientists frequently use all of the following to support the theory that organisms change over time except.
Chocies:
1. Similarities in DNA
2. Similarities in early development
3. Similarities in body structure
4. Similarities in number of mates.
This is for science
Answer:
4
Explanation:
The gradual change in the species over the periods is called evolution. These changes help species to survive in nature and adapt to their surrounding.
The correct answer to the question is option D which is Similarities in a number of mates.
What is DNA?The molecule which stores all the genetic information of the body and regulates the formation of protein and hormones is called DNA.According to the question, the correct answer is option D because the number of mates can not help in the study of the evolution factor.
Hence, the correct answer is option D.
For more information about the question, refer to the link:-
https://brainly.com/question/5763151
this is the last free pts for the day but you have to answer this still to earn Brainliest, k? Guess what time zone I live in, dudes? ;)
I'm a girl btw
Answer:
ummm Eastern time zone
Answer:
mountain time zone?
Explanation:
thats where im in :)
Please help y’all I don’t understand
Answer:
I believe it is 2
Explanation:
I just learned this in my class too, so I'm not sure
I'm very tired so if you could help with these that would be great.
HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!The point within the earth where the earthquake originates.
Which seismic waves are call “push/pull” because they compress and extend as theymove through the earth? *
Which type of seismic wave can move through solid layers of the earth but not through the liquid outer core? *
Which seismic wave is the first to reach a seismic station, and therefore is the fastest? *
Answer:
1.A 2.P waves are the fastest kind of seismic wave. a longitudinal P wave has the ability to move through solid rock and fluid rock, like water or the semi-liquid layers of the earth. It pushes and pulls the rock it moves through in the same way sound waves push and pull the air. 3.The second type of body wave is the S wave or secondary wave, which is the second wave you feel in an earthquake. An S wave is slower than a P wave and can only move through solid rock, not through any liquid medium. It is this property of S waves that led seismologists to conclude that the Earth’s outer core is a liquid. 4.P Waves The first kind of body wave is the P wave or primary wave. This is the fastest kind of seismic wave, and, consequently, the first to 'arrive' at a seismic station. The P wave can move through solid rock and fluids, like water or the liquid layers of the earth.Explanation:
Please help y’all I don’t understand
Answer:
D.
Explanation:
You try to get 8 electron on the outermost "shell" so you have no left over or "valence" electrons.
PLEASE HELP ME ASAP!!! THIS IS DUE UNTIL 1:30 PM!!! Tell how many Elements are in this compound and tell what the Elements are. NaClOFeCoH
Answer: 13
Explanation: I got it right
Answer:
6 elements
Explanation:
each element Na, Cl, O, Fe, Co, H
Question: Animals respond to threats in their environment by attacking or escaping. Either response is the result, mostly, of interactions between...
Answers: A.The circulatory system and the reproductive system.
B.Blood circulation and hormone production.
C.The nervous system and the muscular system
D.Respiratory rates and defense against pathogens.
Animals respond to threats in their environment by attacking or escaping is the result of interactions between the nervous system and the muscular system.
What is nervous system?The nervous system is the largest controlling, intercommunicating and regulative system in the body.
Animals respond to threats in their environment by two ways-
They attack to the threats.They escape from the threats.Either response is the result, mostly, of interactions between the nervous system and the muscular system. This system includes all the muscles in the body and nerves.
The nervous system is the connection between the thoughts of brains to the different parts of the body to take the necessary action.
Thus, the animals respond to threats in their environment by attacking or escaping is the result of interactions between the nervous system and the muscular system.
Learn more about the nervous system here;
https://brainly.com/question/869589
Which of the following most likely happens during a chemical change?
No new substances are formed.
Properties of a substance remain unchanged.
Composition of a substance is same as before.
Different substances than before are produced.
Answer:
Different substances than before are produced.
Explanation:
a chemical change happens when one chemical substance is transformed into a different substance
Question 2 (2 points)
(03.01 LC)
There are more protons than electrons in a positively charged atom. (2 points)
OTrue
OFalse
Answer:
True.
General Formulas and Concepts:
Chemistry
Reading a Periodic TableNeutral Atoms and IonsChargesExplanation:
Protons have a positive (+) charge.
Electrons have a negative (-) charge.
If the ion is positively charged, that means that there are more protons than electrons. Therefore, the statement is true.
PLEASE HELP ASAP
Is mass conserved when 40 g of sodium hydroxide undergoes a chemical change during an interaction with 36.5 g of hydrogen chloride? Use complete sentences to support your answer by explaining how this can be demonstrated.
Answer:
Explanation:According to the law of conservation of mass (mass remains the same throughout a reaction), mass is conserved in this case. This can be proven by comparing the weight of two enclosed glass containers of the reaction. They will most likely have the same weight because the products the chemical reaction creates would most likely produce a gas that can be trapped if there is no opening in the glass container. To further investigate, compare the weights of the products of the reaction with an enclosed container to another container with no lid of the same reaction.
the color of a mineral is powdered form
a. luster
b.streak
c.hardness
science i need help please
Answer: Streak
Explanation: The color of a mineral in powdered form is called the mineral's streak. To find a mineral's streak, the mineral is rubbed against a piece of unglazed porcelain called a streak plate. The mark left on the streak plate is the streak.
The streak of a mineral is its powder's color, because streak does not vary, it is a more dependable quality than color. Minerals of the same color may have a streak of a different hue, hence option B is correct.
The streak of a mineral refers to the color of the material when it is in powdered form. A streak plate is an unglazed piece of porcelain that is used to locate a mineral's streak. The streak is the mark that was left on the streak plate.
When minerals are powdered, they often take on a distinct hue than when they are in crystal or massive form. It might be a completely different tint or a completely different color.
Learn more about streak, here:
https://brainly.com/question/5390995
#SPJ6
What is a mixture in science?
Answer:
Different elements together that can be separated again
Answer:
a mixture is a material made up of two or more different substances which are physically combined.
Explanation:
PLZ HELP BC MY TEACHER IS NOT A GOOD TEACHER (this is science)
Suppose water, carbon dioxide, and nitrogen were not recycled. What effects might this have on life on Earth?
Answer:
Sorry if this is long-
Explanation:
If water wasn't isn't recycled then all living things will eventually die out, everything on this earth that's alive needs water to live. removing water from the whole earth will kill all life and remove the most important greenhouse gas from the atmosphere.
If carbon dioxide wasn't recycled it will be removed from the atmosphere. and all the plants will die due to the lack of carbon dioxide. however, if you JUST remove carbon dioxide, plants and all animals will die due to the collapse of the food web, but there's a chance that certain species of bacteria will still live. you are also removing another green house gas from the atmosphere.
Without these green house gasses regulating the earths temperature. the earth may go into a deep freeze.
Nitrogen is an important component in amino acids. Organisms use amino acids to build proteins from dna. all living organisms use proteins for just about everything, from digestion to DNA replication. if we deplete our nitrogen, no organism on the earth can create proteins. which means, no organism can exist. Also the 4 bases of dna (adenine, guanine, cytosine, and thyamine) are nitrogen based. Without nitrogen you can't have DNA.
Warning
Excessive moisture has been observed in the atmosphere, along with thick cumulonimbus clouds. Expect heavy winds, rain, lightning, and possibly hail.
What type of severe weather is being described?
Blizzard
Hurricane
Thunderstorm
Tornado
Answer: Hurricane
Explanation:
CAN SOMEONE PLS HELP ME? IDK HOW TO MAKE CONCLUSIONS. JUST TEACH ME HOW :)
How to state whether your hypothesis is supported or not supported by your results?
What are the regions of the spectrum with wavelengths that can pass through the atmosphere called?
Answer:
These regions of the spectrum with wavelengths that can pass through the atmosphere are referred to as "atmospheric windows." Some microwaves can even pass through clouds, which make them the best wavelength for transmitting satellite communication signals.
Explanation:
Hope this helps. Have a great rest of your day :)
Sulfuric acid is a colorless, oily liquid, used in the manufacturing of detergents, fertilizers, dyes and pigments, and even explosives. The chemical formula for sulfuric acid is H2SO4. Students were asked to make claims about how many total atoms are in this formula and support their claim with evidence. Choose the correct claim with the best supporting evidence. A. Ryan said there are 8 total atoms: two hydrogen (H) atoms, two sulfur atoms (S), and four oxygen (O) atoms. B .Camila said there are 7 total atoms: one hydrogen (H) atom, two sulfur atoms (S), and four oxygen (O) atoms. C. Parris said there are 7 total atoms: two hydrogen (H) atoms, one sulfur (S) atom, and four oxygen (O) atoms. D. Anthony said there are 10 total atoms: two hydrogen (H) atoms, four sulfur (S) atoms, and four oxygen (O) atoms.
Answer:
Sulfuric acid is the most widely used acid in industry. It is used to make detergents, dyes, drugs, explosives, pigments, fertilizers, and many other products. It is also the acid in lead-acid electric batteries. Chemical formula: H2SO4.
Explanation:
The type of heat transfer responsible for distributing most of the heat throughout Earth's atmosphere is
A.radiation
B.conduction
C.convection
Answer:
A
Explanation:
A.
Explanation:
hope it helps. if im incorrect. please report so people don't think its the correct answer. <3
How are reactivity patterns on the periodic table related to an element's use in everyday applications?
Answer:
•The position of the electron in the atom can be explained by the presence of a concentric shell around the nucleus. The number of electrons in the outer shell of an atom determines its reactivity. Rare gases are less reactive because they have a completely electron shell.
Explanation:
NEED HELP! ASAP! analyze and state the relationship between the independent and dependent variable by describing how the dependent variable reacted to the change in the independent variable. If you used a control, you shoukd compare the data to the control.
Answer: Depends on the experiment.
Explanation:
For any experiment, the fact remains that the independent variable always affects the measurement of the dependent variable. The independent variable is the factor in the experiment that you are changing. The dependent variable is, more often than not, the result of the change. Compare the relation between the two sets of data - probably graph it if it helps. The control data is the set of data gathered from the experiment where all the factors are not changed and are standardized. This is, in essence, the "original" data. Compare the changed data to this data. Hope it helped!