Answers
Answer:
the last one
Explanation:
Related Questions
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.
Answers
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 type of heat transfer responsible for distributing most of the heat throughout Earth's atmosphere is
A.radiation
B.conduction
C.convection
Answers
Answer:
A
Explanation:
A.
Explanation:
hope it helps. if im incorrect. please report so people don't think its the correct answer. <3
The mass of the electron is..
A) about equal to the neutron
B) almost the same as the proton
C) very small compared to the proton
D) very large compared to the neutron
Answers
What is a mixture in science?
Answers
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:
pleassssse helpppppp
Answers
Answer:
Solar Energy
Explanation:
Calcium has a charge of +2. The chart lists the charges of different ions.
Which are possible equations for an ionic compound with calcium?
CaO, CaMg, or CaF2
Ca2Cl, CaNa, or CaP
CaF, CaMg, or CaNa
CaO, CaF2, or CaCl2
Answers
Answer:
I think it is
Ca2Cl, CaNa, or CaP
Explanation:
Explain: Hope this helped!
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
Answers
Answer: 13
Explanation: I got it right
Answer:
6 elements
Explanation:
each element Na, Cl, O, Fe, Co, H
Which statement describes how pioneer species and climax communities are different?
A. Pioneer species tend to have large body sizes, and climax communities contain species with only small body sizes
B. Pioneer species mark the end of succession, and climax communities mark the beginning
C. Primary species have many species types, and climax communities have few species
D. Primary species have large numbers of offspring, and climax communities contain species that have small numbers of offspring
PLEASE HURRY!!!!!!!!!!!!! God bless all! :)
Edited at 12:55 p.m.: I found the answer so if you still want points just put down whatever you want to. Nothing mean though. Thanks and God bless
Answers
Explanation:
thaks!!!!!!!!!!!!!!!#!
Please help y’all I don’t understand
Answers
Answer:
I believe it is 2
Explanation:
I just learned this in my class too, so I'm not sure
because you can only merge 4 into 2 :)
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.
Answers
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!
the color of a mineral is powdered form
a. luster
b.streak
c.hardness
science i need help please
Answers
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:
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Which type of front occurs when cold air and warm air are next to each other, but are at a standstill?
warm front
stationary front
cold front
occluded front
Which is it? grade 6 science class, pls help me, thank u, I'm sure I'm the lowest grade on Brainly so yeah this would be easy for you lol. l m a o!!!! ;) thx
Answers
Why does salad become soggy and wilted when the dressing has been on it for a while? Explain why, in terms of osmosis. PLS HELP FAST!
Answers
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?
Answers
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.
Answers
But to be honest I haven’t done this in awhile
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
Describe reflection using the terms incident ray and reflected ray.
if you don't know, don't answer.
Answers
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.
What are the regions of the spectrum with wavelengths that can pass through the atmosphere called?
Answers
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 :)
Many photographers take pictures of scenety. Below is a sample of a popular technique that they use. The technique captures a picture of the mountains and the sky in the water. Identify which property of light is being demonstrated in this technique.
A. interference
B. water colors
C. refraction
D. reflection
Answers
The property of light being demonstrated in the picture is reflection of light.
What is reflection?Reflection of light is defined as a property of light ray that when it strikes a smooth surface it bounces back .Objects can be seen due to this property of light.Reflection is produced by all types of waves namely sound waves, light waves, electromagnetic waves.
Reflection of light is governed by laws of reflection which are also called as Snell's laws. According to laws of reflection, angle of incidence and angle of reflection are equal.The incident ray , reflected ray and normal all lie on the same side of the plane.Light travels in a straight line before, after and during the process of reflection.There are 3 types of reflection which are diffuse reflection,specular reflection and glossy reflection.
Learn more about reflection,here:
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Please help y’all I don’t understand
Answers
Answer:
D.
Explanation:
You try to get 8 electron on the outermost "shell" so you have no left over or "valence" electrons.
I'm very tired so if you could help with these that would be great.
Answers
Here you go hope this helps
A candle burning is an example of _____. an exothermic change an endothermic change a physical change energy being taken in
Answers
Answer:
chemical change
Explanation:
it is turning into a different substance as it burns
ur welcome
the process of burning is a chemical reaction, which would occur in a chemical change
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.
Answers
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:
I hope this helps! :)
Question 2 (2 points)
(03.01 LC)
There are more protons than electrons in a positively charged atom. (2 points)
OTrue
OFalse
Answers
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.
Judging from the diagram, which of the following statements is true?
A. Sound travels at the same speed through both cold and warm air.
B. Sound travels faster through cold air than through warm air.
C. A sound wave's wavelength shortens when it travels from cold air into warm air.
D. Sound travels faster through warm air than through cold air.
Answers
Answer: D, sound travels through warm air faster than cold
Explanation:
Molecules move faster and transmit more sound vibrations in warm air.
PLEASE HELP ILL MARK BRAINLEST
Record your data either in your lab notebook or in the space below.
Table A. Predictions of Kinetic Energy and Resulting Beanbag Height for Varying Masses
Mass
(kg)
Velocity
(m/s)
Kinetic Energy
(kg∙m2/s2)
Height of Beanbag
(m)
Average Height of Beanbag
(m)
0.125
0.250
0.375
0.500
Observations
Answers
Answer:
Answer:
0.35
0.91
1.26
1.57
Explanation:
did it on edge
Answer:
Hey lol, not sure why my answer got deleted and why I got warned but regardless of the reason, the answer should be: 0.35, 0.91, 1.26, 1.57
Explanation:
I did it yesterday on e d g e n u i t y
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?
Answers
The water would be dirty and not healthy to drink or swim in. Carbon dioxide would make breathing very hard, animals and humans would die.
Good luck
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.
With unbalanced forces, the object will move in the direction of the _____ force.
A) cannot be determined
B) larger
C) equal
D) smaller
Answers
when it’s larger the force has more mass thus pushing the weaker or smaller side
Answer:
b: LARGER
Explanation:
im just different :)
Greenhouse gases in the atmosphere trap
A.solar energy leaving Earth.
B.infrared energy leaving the sun.
C.solar energy near Earth's surfaces.
D.infrared radiation leaving Earth.
Answers
Explanation: the light energy is from the sun which other than light energy, is equal to solar energy, confirming that the answer is C
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
Answers
Answer:
ummm Eastern time zone
Answer:
mountain time zone?
Explanation:
thats where im in :)
Please help y’all I don’t understand
Answers
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.