Answer:
Neutron star collisions
PLZ HELP HURRY PLZZZ
Answer:
alkali metals
Explanation:
s block elements are also called alkali metals
Compounds have the same properties as the elements they are made up of. Is it true or false
Answer:
compounds have the same properties the elementary are false.
Use the PhET simulation to identify what happens to the concentrations of a dilute Drink mix mixture or a pure Drink mix solution for the following scenarios. A pure Drink mix solution can be obtained by draining all the mixture, then adding Drink mix to the container as a Solution (radio button in the upper right area of the simulation). Note that the Concentration meter can be placed toward the bottom of the container or in the stream of the Drink mix. Drag the appropriate items to their respective bins.
Hello user, you did not add a picture of an attachment to enable me help you solve this problem. Please check the attachment I added i believe it is the question that needs to be solved.
Explanation:
1. In the first column
INCREASE CONCENTRATION: these are the items that needs to be placed in this bin
a. Add drink mix solid to a diluted mixture of drink mix in pure water
b. Add drink mix solution to a diluted mixture of drink mix in pure water
c. Add drink mix solid to pure drink mix solution
d Evaporate water from a diluted mixture of drink mix in pure water
e Evaporate water from pure drink mix solution
2. The items below are what should be placed in this bin,DECREASE CONCENTRATION:
a. Add water to a diluted mixture of drink mix in pure water
b. Add water to pure drink mix solution
3. These items here should be placed here. DOES NOT AFFECT CONCENTRATION:
a. Add pure drink mix solution to pure drink mix solution
b. Drain the pure drink mix solution
c. Drain the diluted mixture
4 800 000 in scientific notation
Answer:
4.8*10^6
Explanation:
Simply count the number of decimal places moved to the left until you get 1 digit IN front of the decimal
ARE MINERALS man-made?
Answer:
no
their made from the earth
Atoms contain positively charged protons and negatively charged electrons. Why does an ordinary atom have no charge?
Atoms contain positively charged protons and negatively charged electrons. The atoms contain the same number of protons and electrons so the positively charged protons balance out the negatively charged electrons. Therefore, an atom is electrically neutral because it has no charge.
1. What does the rule of law mean?
2. How does the rule of law protect Citizen?
3. How does the rule of law impact lawmakers and courts?
Answer:
I answer this one before
Explanation:
right
Answer:
1. A principle under which all persons, institutions, and entities are accountable to laws that are: Publicly promulgated. Equally enforced. Independently adjudicated. And consistent with international human rights principles.
2. The laws are clear, publicized, and stable; are applied evenly; and protect fundamental rights, including the security of persons and contract, property, and human rights. The processes by which the laws are enacted, administered, and enforced are accessible, fair, and efficient.
3. It codifies the core values of the people. Courts have the responsibility to interpret the Constitution's meaning, as well as the meaning of any laws passed by Congress. Everything they do must be based on the law, and they are accountable for their decisions. That means officials are held responsible for the choices they make.
A block of metal has a mass of 85g and a volume of 6.35mL. What is the density?
Answer:
13.39
Explanation:
Density is g/mL divide the grams by the mL
How many liters of soft drink are there in 5.25 qt?
Answer:
4.69 liters
Explanation:
I hope this helps.
To convert measurements in the metric system you can move the decimal point left or right why does this work?
Explanation:
Because when you move the decimal point once, it it equal to 10 and to convert in the metric system, you must multiply or divide by 10. For example, when converting 4 centimeters to millimeters, you can multiply by 10 to get 40 millimeters or you can move the decimal point to the right and add another 0 to get 40.
Answer:
when you move tne decmal point it alwase ads up to ten
Explanation:
WILL GIVE BRAINLEIST
For this assignment, you will develop a model that shows a roller coaster cart in four different positions on
a track. You will then use this model to discuss the changes in potential, kinetic, and thermal energy of
the cart as it moves along the track.
Answer:
This should help :)
Explanation:
The cart has a lot of potential energy, little kinetic energy, and little thermal energy when it is in position A. The kinetic energy and potential energy both rise as the cart moves towards position B, while the thermal energy rises as thermal energy from the track is transmitted to the cart through friction
What is Kinetic energy ?
Kinetic energy, which may be seen in the movement of an object, particle, or group of particles, is the energy of motion.
The cart has a lot of kinetic energy, little potential energy, and little thermal energy after it reaches position C. The cart has some thermal energy and a high potential energy at point D.
It also has a low kinetic energy. Gravity, momentum, and friction are all connected with potential energy, kinetic energy, and thermal energy, respectively.
Position A is when the potential energy is at its highest, and its kinetic energy is at its peak in position C and at its lowest in position A, whereas thermal energy is at its peak in position B and at its lowest in position A.
To learn more about Kinetic energy, refer to the below link:
https://brainly.com/question/999862
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I need help on this, the question in here:
Answer:
The wheel size does not affect the speed of the skateboard.
Explanation:
This is true because Nikki's average time goes up while Lisa's goes down, so it depends on how hard they are pushing the skateboard with their foot.
You measured the mass of Coke as 21.36 grams and the volume as 20.50 ml. What is the density of Coke in
g/mL?
Answer:
The answer is 1.04 g/mLExplanation:
The density of a substance can be found by using the formula
[tex]density = \frac{mass}{volume} \\[/tex]
From the question
mass of coke = 21.36 g
volume = 20.5 mL
So we have
[tex]density = \frac{21.36}{20.50} \\ = 1.0419512...[/tex]
We have the final answer as
1.04 g/mLHope this helps you
Using the formula Q = m x ^T x Cp, solve for energy, and round your answer to the correct number of sig figs and show all work:
1) How much heat is absorbed by 1210. g water (Cp = 4.184 J/g*C) when it is heated from 20*C to 45*C
Answer:
Q = 126.5 kJ
Explanation:
Given that,
Mass, m = 1210 g
Specific heat of water, c = 4.184 J/g°C
Initial temperature, [tex]T_i=20^{\circ} C[/tex]
Final temperature, [tex]T_f=45^{\circ} C[/tex]
We need to find the heat absorbed by water. The formula that is used to find the heat absorbed is given by :
[tex]Q=mc\Delta T[/tex]
Putting all the values in it we get :
[tex]Q=1210\ g\times 4.184\ J/g^{\circ} C\times (45-20)^{\circ} C\\Q=126566\ J\\\\\text{or}\\\\Q=126.5\ kJ[/tex]
So, the amount of heat absorbed is 126.5 kJ.
How many electrons should Nitrogen (N) have around its Lewis dot model?
Answer:
5
Explanation:
5 electrons Nitrogen (N) have around its Lewis dot model. Therefore, the correct option is option D among all the given options.
What is nitrogen?Nitrogen (N), a nonmetallic element belonging to Periodic Table Group 15 [Va]. It is a colorless, flavorless, and odorless gas that makes up the majority of the atmosphere on Earth and is a component of all living things.
In terms of cosmic abundance, nitrogen is the sixth most abundant element. The main supply of nitrogen for trade and industry is the atmosphere of Earth, which contains 75.51 percent nitrogen by weight. Aside from nitrogen oxides and nitric acid, the atmosphere also includes variable tiny quantities of ammonia and ammonium salts. 5 electrons Nitrogen (N) have around its Lewis dot model.
Therefore, the correct option is option D.
To learn more about nitrogen, here:
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Active and inactive volcano in philipines?
355 volcanoes in the Philippines are inactive.
24 volcanoes are active
Answer:
TAAL ACTIVE
MAOUNT BALUGAO INACTIVE
Explanation:
what is the meaning between fission and fusion
Answer:
Both are nuclear reactions that produce energy,but the applications are not the sameExplanation:
Fission -is the spitting of a heavy,unstable nucleus into two lighter nuclei Fussion -is the process where two light nuclei combine together releasing vast amounts of energy.Ammonium sulfate, an important chemical fertilizer, can be prepared by the reaction of ammonia with sulfuric acid according to the following balanced equation:
2 NH3(g) + H2SO4(aq) → (NH4)2SO4(aq)
If a reaction vessel has 3.29 L of NH3 at 31.5°C and 22.7 atm, how many grams of H2SO4 are needed to completely react with it?
_________________ g H2SO4. Do NOT enter unit. Report your final answer with 3 SFs.
Answer:
Ammonia reacts with sulphuric acid to give the fertilizer ammonium sulphate.
Explanation:
Starting from position 3,5 go west 7 , then south 7, then east 4 what’s your ending point?
Answer:
-1, -2
Explanation:
West is left south is down east is right
Which of the following correctly
states the difference between
elements and compounds?
Elements and compounds are the
same because they are both made of
atoms,
An element is made of two or more
types of atoms combined, while a
compound is made of one type of
stom,
An element is made of one type of
tcom, while a compound is two or
more types of stoms combined.
Answer:
An element is made of one type of atom, while a compound is two or
more types of atoms combined.
Explanation:
An element is a distinct substance that cannot be split up into simpler substances. Elements are substances that consists of only one kind of atom.
Compounds are substances composed of two or more kinds of atoms/elements joined together in a definite grouping.
There are over a hundred elements known to date. Each one of the elements is symbolized by a capital or a capital letter followed by a small letter derived from English, Latin or Greek Examples are copper, gold, ironThe properties of a compound are distinct and different from those of the individual elements that are combined in its make up. There are several millions of compounds known. They are usually represented by chemical formulae.As we can see, compounds are indeed made up of more than one types of atoms whereas an element is made up of just one single atom.
In lab, you measure out 24.25g of C2H4. How many atoms of H is this?
Answer:
anong sagot jan? d ko kasi alam ehhh penge sagot
Which atom has the largest atomic radius
The volume of a sphere is given by the equation =4/33, where is the radius. Calculate the volume of a sphere with a radius of 345 pm in cubic meters.
Answer:
its 45 because of 49 og the
boiling and melting points exploration
Answer:
Boiling- 212° F melting- 32°F
Explanation:
Which is the most effective action for people to take in order to reduce greenhouse gas emissions? O taking the bus more often O using a car powered by fuel cells O driving a car only five days a week O using a car that travels farther on each gallon of gas
One of the most effective ways to reduce greenhouse gases is using a car powered by fuel cells.
What are greenhouse gases?The term greenhouse gases refers to those gases that lead to a rise in the temperature of the earth due to the re-radiation of infrared rays towards the surface of the earth.
It is very important to take vital steps in order to prevent the emission of these gases. One of the most effective ways to reduce greenhouse gases is using a car powered by fuel cells.
Learn more about greenhouse gases: https://brainly.com/question/14131369?
Answer:
Using a car powered by fuel cells
Explanation:
B On Edge
write the molecular formula for the following compound.
Answer : The molecular formula of the compound is, [tex]C_8H_9O_3N[/tex]
Explanation :
Molecular formula : It is the representation of substance by the symbols and it denotes the number of atoms of each element present in the compound.
Now count the number of carbon, hydrogen, nitrogen and oxygen atoms present in the given compound.
As we see that in the given compound, there are 8 atoms of carbon element, 3 atoms of oxygen element, 1 atom of nitrogen element, 9 atoms of hydrogen element.
Thus, the molecular formula of the compound will be [tex]C_8H_9O_3N[/tex]
Describe the electronic structure of halogen how it changeS down the group
We have unlimited wants but our resources such as time and money are limited. This concept is known as A. Scarcity B, Consumption C. Trade D. Currency
Answer:
Since human wants are unlimited, and resources used to satisfy those wants are limited - there is scarcity. Even in the US, one of the richest countries in the world, there is scarcity -- if we use our new definition of SCARCITY.
hope it helps
PLZ HELP PLZ HURRY NO WRONG ANSWER PLZ ALSO WILL GIVE BRAINLIEST
An atom of an element contains 6 protons, 6 neutrons, and 6 electrons. An atom that is a different isotope of this element would contain —
A.
6 protons, 7 neutrons, and 6 electrons.
B.
6 protons, 6 neutrons, and 7 electrons.
C.
7 protons, 6 neutrons, and 6 electrons.
D.
7 protons, 7 neutrons, and 7 electrons.
Answer:
I dont lnow much about chemistry, but I believe it's either d or a. sorry if its wrong!
Use the periodic table to determine the electron configuration for aluminum (Al) and arsenic (As) in noble-gas notation.
Al:
[Ar]3s23p1
[He]2s22p63s23p1
[Ne]3s23p1
[Ne]3s23p2
Answer:
C
Explanation:
[Ne]3s23p1
Answer:
C
Explanation: