Answer:
The nucleus splits into two or more lighter nuclei, releasing kinetic energy, gamma radiation, and free neutrons. A portion of these neutrons may later be absorbed by other fissile atoms and trigger further fission events, which release more neutrons, and so on. This is known as a nuclear chain reaction.
Explanation:
which of the following statements explains why fossil fuels are nonrenewable resources
Answer:
the first one
Explanation:
Please answer ASAP,
Why does the earth experience high tides?
High tides occur because Jupiter is in alignment with Saturn
The gravitational force of the moon attracts the water and solid earth, pulling them closer to the moon
The gravitational pull of the moon causes areas of water that bulge away from the earth.
High tides occur because the comet Neowise passed by Earth
Answer:
B
Explanation:
I took the test and GOT an A
(Answer ASAP)
In which state(s) of matter could a substance have thermal energy?
A) Only liquids and gases
B) Only liquids and solids
C) Only liquids
D) Liquids, solids, and gases
7. A gas occupies 900.0 mL at a temperature of 27.0°C. What is the volume if the temperature
increases by 105 °C? *
Answer:
thats the ans.
https://socratic.org/questions/a-gas-occupies-900-0-ml-at-a-temperature-of-27-0-c-what-is-the-volume-at-132-0-c
Explanation:
chemistry:
plz help me:D
Answer:
the amswer to number 5 is 18g/ mol and the answer to number 6 is 8
116
Sn
50
Write the complete nuclear equation for alpha absorption
How does a stage 2 of cellular respiration benefit a cell?
Answer:
The second stage of cellular respiration is the “Krebs Cycle”. This is a catabolic reaction that occurs within the cells. In cells, the energy is produced and stored in the form of ATP.
Which best describes the sequence of elements in Period 5 of the periodic table? (Read the table from left to right and choose the best description)
Nonreactive gases, Metalloids, Nonreactive metals, Highly reactive metals, Highly reactive gases
Highly reactive gases, Relatively nonreactive metals, Metalloids, Very nonreactive gases, Nonreactive nonmetals
Highly reactive metals, Relatively nonreactive metals, Metalloids, Reactive nonmetals, Nonreactive gases
Nonreactive gases, Nonreactive metals, Highly reactive metals, Metalloids, Reactive nonmetals, Reactive gases
Answer: It’s the 3rd one
The elements of period 5 is best described as the Highly reactive metals, Relatively nonreactive metals, Metalloids, Reactive nonmetals, Nonreactive gases.
The elements of period 5 include metals and nonmetals,
For example-
Rubidium and Strontium reactive metals.It contains Relatively nonreactive metals,Nitrogen and phosphorus are nonmetals in period 5.Xenon is the non reactive gas in period 5.Therefore, the elements of period 5 is best described as the Highly reactive metals, Relatively nonreactive metals, Metalloids, Reactive nonmetals, Nonreactive gases.
To know more periodic table,
https://brainly.com/question/11155928
Define the unit of current. Name the device which is used to measure
electric current in a circuit. plzz helpp
Answer:
Explanation:
The Unit Of Current is defined as the flow of 1 coulomb of charge in one second . Its unit is Ampere.
An ammeter is a measuring device used to measure the electric current in a circuit. A voltmeter is connected in parallel with a device to measure its voltage, while an ammeter is connected in series with a device to measure its current.
¿por que la bebida es una solución quimica? Explica. ¿cuales son sus componentes? ¿que tipo de solucion es?
Answer:
La respuesta está en el enunciado
Explanation:
Una solución química es definida como una mezcla de dos o más sustancias donde, la que está en mayor proporción, es definida como el solvente y los componentes que están en menor cantidad se definen como los solutos.
En general, en la formulación de bebidas, el solvente es agua, los solutos son otros componentes como saborizantes y colorantes que permiten que el consumidor tenga experiencias agradables con la bebida.
Además, la solución debe ser homogenea, esto es, todos los solutos se encuentran completamente disueltos en el solvente. Una bebida comercial a la que se le encuentren partículas no genera confianza y puede ser rechazada por parte del consumidos.
how is water treated for human use
Answer:
the water is first screened then filtered to remove undesolvable objects then passed into the sedimentation tank which is again filtered after leaving the tank. Chlorine is then added to the fine filtered water to kill viruses and bacteria. now the water is clean hope i ave help u enough
Explanation:
When a car starts rusting where there is a scratch on the paint, a redox reaction is happening
TRUE OR FALSE
Answer:
it is true
Explanation:
hope it helps :)
Answer: I think it is true
Explanation:
it is true because it will start rusting when there is a scratch on the paint!
I HOPE THIS HELPS YOU!!
How many pennies do you need to stack for them to be as tall as a 2,300 mm door?
(1 penny = 1.52 mm)
*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆
Answer: 1513.15789 Pennies
Explanation:
2300 / 1.52 = 1513.15789
I hope this helped!
<!> Brainliest is appreciated! <!>
- Zack Slocum
*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆
A substance with two or more different types of atoms chemically bonded together is called....
a. an element
b. an atom
c. a mixture
d. a compound
Answer:
D
Explanation:
Help asap please
4. Mixing sand and salt in water then passing it through a filter separates out the sand because salt
in water and sand does not.
a) reacts
b) dissolves
c) disappears
Answer:
dissolve
Explanation:
salt will dissolve in water while sand will not, so you arent going to see salt pass through
Answer:
b
Explanation:
CO(g) + O2(g) CO2(g)
Consider the unbalanced equation above. What is the maximum mass of carbon dioxide that can be formed when 1.45 g of CO and 2.00 g O2 react?
Can someone plz help me with this one problem plz!!!!
Answer:
very top one is sunlight. 2nd top one is oxygen. 3rd top one is carbon dioxide. last one is water
Which part of homeostasis is this adorable puppy balancing out with his little stuffed animal buddy?
Body Temperature
Energy
Waste
Water Level
Cuteness
Plzzz help
Answer:
body temperature and energy
Describe two physical properties of sodium which are different from the physical properties of transition elements such as copper.
Answer:
Malleability : Capable of being shaped or bent.
Ductility : Easily pulled or stretched into a thin wire.
Luster : Has a shine or glow.
Conductivity : Good transmission of heat or electricity.
Softness : Soft enough to be cut with a knife.
Find the H+ concentration of of a solution that has a pH solution of 12.24
Answer:
[H⁺] = 5.754 x 10^-13 M
Explanation:
Since pH is the negative log of the hydronium concentration, we can solve for hydronium concentration and then plug in our given pH:
pH = -log[H⁺]
-pH = log[H⁺]
10^-pH = [H⁺]
Let's plug in our pH:
[H⁺] = 10^-pH = 10^-12.24 = 5.754 x 10^-13 M
solve the following equation:13x - 22 = 30
Answer:
52/13
Explanation:
13X=30+22
x=52/13
It is the year 2032, and a new planet (Planet Y) is discovered. An astronaut with a mass of 79.00 kg visits the new planet. It is discovered that his weight on the new planet is 740.8 lbs. What is the estimate of the g force on the planet and would the astronaut be heavier on Planet Y or on Earth? (Earth has a g force of 9.81 m/s2 ).
Answer:
“Newton’s Law of Gravity” gives the gravity force between two objects with masses m
and M separated by distance r:
F G
m M
r
2
G is called the Gravitational Constant, and has the value
6.671011N m
2
kg2
(N is for
Newton, the physicists’ unit of force) or
1.51011 lbm
2
kg2
.
Let’s go back to the example given in the text: two 150 lb people separated by 1 meter.
The mass of each person is
150lb
2.2
lb
kg
68kg
. Putting these into the formula gives
F 1.5101 1 lb m
2
kg2
(68kg)
2
(1m)
2
107
lb.
Newton’s Law of Gravity actually gives the force only between two small objects. If one
of the objects is a sphere (such as the Earth) then it turns out that you can still use the
formula, but you must use the distance to the center of the sphere as the value for r. As
an example, let’s put in numbers for a 1 kg object sitting on the surface of the Earth.
Then the force of attraction is given by the gravity equation with m = 1 kg, M = the mass
of the Earth =
24 610
kg, and r = radius of the Earth (that’s the distance to the center of
the sphere). This distance is r = 6371 km ≈
6
610
meters. Without plugging in the
numbers, can you guess what the answer will turn out to be? Guess, and then check this
footnote2
to see if you guessed correctly.
Suppose you weigh 150 lbs on the Earth. Then your mass is
150lb
2.2
lb
kg
68kg
. What will
you weigh on the Moon? We can calculate that by using Newton’s Law of Gravity, and
putting in the M = the mass of the Moon =
22 7.310
kg, r = the radius of the moon =
6
1.710
meters. The answer is F = 25 lb. That means you will weigh 25 lb. on the
surface of the Moon.
Explanation:
hope this helps :)
Version: TAKEHOME
1) The ionic compound below is soluble in water. Complete the following:
-Draw the interaction of the ionic compound and water in the proper orientation. 3pts
-On the line below discuss the strength of the interaction within the compound compared to the strength of interaction
between the compound and water.
Answer:
The hydrogens of the water molecules around the bromide ion will need to be faced toward it, whereas the oxygens of the water molecules around the potassium ion will need to be faced toward it.
The strength of the interaction within the compound will supersede that of the interaction between the compound and water.
Explanation:
To answer this question, you need to be aware of the structure of a water molecule and its components. A water molecule has the chemical formula of H2O, and oxygen is inherently electronegative, meaning that it attracts electrons very strongly. As a result, when it is in H2O, it pulls the valence electrons of the H atoms very strongly, which results in the H atoms being partially positively charged and the O atom being partially negatively charged. Therefore, the O atom is going to be attracted to the potassium ion, whereas the H atom is going to be attracted to the bromide ion.
The answer to the second part of the question is as written above because ionic bonds are stronger than ion-dipole bonds; that's just the way it is.
Read the chemical equation.
Mg + HCI - MgCl2 + H2
How many liters of hydrogen gas is produced at 298 K and 0.940 atm if 4.00 moles of hydrochloric acid react with an excess of magnesium metal?
O 26.0 liters
O 52.1 liters
82.3 liters
104 liters
Answer:
74.04 liters of hydrogen gas are produced.
Explanation: According to reaction, 2 mol of HCl gas gives 1 mole of hydrogen gas, then 6 moles of HCl gas will give: moles of hydrogen gas that is 3 moles.
The pressure of the hydrogen gas at 298 K = 0.990 atm
The volume occupied by the hydrogen gas = V
Number of hydrogen has moles = 3 moles
PV=nRT
V = 74.04 L
74.04 liters of hydrogen gas are produced.
Answer:
38.2 liters Is the answer
Explanation:
Sam did an experiment. He boiled water in a teapot and saw vapor coming out. When he placed a cold plate in contact with the vapor it formed droplets of water.? Can you imagine what was that process and Why did he observe this?
Answer:
evaporation and condesation
Explanation:
because he was curiuos
Ethan is observing chemical and physical properties of a substance. He heats a
substance and observes that the substance turns from a brown solid to a black
powder. He refers to several chemistry journals that claim this represents a chemical
reaction. From his observation and research, he concludes that the substance goes
through a chemical change when heated. How can Ethan best defend his conclusion?
A. by demonstrating that the substance will eventually melt if the temperature
continues to increase
B. by verifying that the substance is now made up of different molecules than
before it was heated
C. by verifying that the substance is made up of only one type of element
D. by demonstrating that the substance is less dense after it is heated
Answer:
the answer is b beacuse the substance changed
In a coffee-cup calorimeter, 100.0 g of H2O and 8.70 grams of Na3PO4 are added. The water had an initial temperature of 24.6 oC. After the dissolution of the sodium phosphate the temperature changed to 31.3 oC.
-Was the dissolution exothermic or endothermic? Explain.
-Calculate how much heat the water lost or gained.
Answer:
a.) exothermic
b.) 2,800.6 J
Explanation:
For the following Bronsted acid-base reaction, complete the reaction, identify the acid, base, conjugate
acid and conjugate base. HF + PO4^-3
Answer:
algun moderador puede acabar a este otro este me borró respuesta que no debió borrar
i am the frame word that supports cell
Answer:
blood?
Explanation:
because you need it and makes your body works
Freshwater makes up about 90% of the Earth's surface.
Answer:
what is your question?
Explanation:
I don't understand