Answer:
E--> mc2
E--> 0.007 x (3x108)2
E--> 6.3 x 1014J
Explanation:
What type of atom is hydrogen
Answer:
Protium
Explanation:
The hydrogen atom is the simplest of all atoms: it consists of a single proton and a single electron. In addition to the most common form of the hydrogen atom that is called protium, two other isotopes of hydrogen exist deuterium and tritium.
Answer: Hydrogen is a atom of the chemical element hydrogen.
Explanation:
Two students on opposite sides of a box apply forces to the box. What must be true if the
box does not accelerate?
Answer:
the students are pushing with equal force
Explanation:
A gas sample contained in a cylinder equipped with a moveable piston occupied 300.0 mL at a pressure of 2.00 atm. What would be the final pressure if the volume were increased to 500.0 mL at constant temperature?
Answer:
Explanation
hope this helps!
how did the masses of objects affect the strength of gravity
Answer:
the strength of gravitational force between two objects depends on two factors,mass and distance. the force of gravity the masses exert on each other. if one of the masses is doubled, the Force of gravity between the object is doubled. increases the force of gravity decreases.
If a seed grows well in a very salty environment then that seed has a high salt tolerance.
O True
O False
the ion SO-² ia given : find the protons electrons and neurons
Answer:
dude did you not pay attention in science the answer is 18- n 20- p 18-e
Explanation:
What mass of Sodium Iodide (NaI) will react with 7.82 grams of Chlorine (Cl2)? 2NaI + Cl2 -------------> 2NaCl + I2
Answer:
16.49g
Explanation:
Given parameters:
Mass of Chlorine gas = 7.82g
Unknown:
Mass of NaI = ?
Solution:
The reaction equation is given as:
2NaI + Cl₂ → 2NaCl + I₂
To solve this problem, find the number of moles of the known specie first;
Number of moles of Cl₂ = [tex]\frac{mass}{molar mass}[/tex]
Molar mass of Cl₂ = 2(35.5) = 71g/mol
Number of moles = [tex]\frac{7.82}{71}[/tex] = 0.11mole
From the balanced reaction equation;
2 mole of Cl₂ will react with 2 mole of NaI
0.11 mole of Cl₂ will also react with 0.11mole of NaI
Mass of NaI = number of moles x molar mass
Molar mass of NaI = 23 + 126.9 = 149.9g/mol
Mass of NaI = 0.11 x 149.9 = 16.49g
Please help do in 5 mins This system that breaks down food and absorbs food is called
Answer:
I think its digestive
Explanation:
............
Alec saw footage of a landslide on the news. He saw rocks falling from the side of a mountain, with some of them smashing into each other and breaking apart. Alec witnessed
A. erosion and weathering.
B. erosion and compacting.
C. weathering and compacting.
D. weathering and sedimentation.
Answer:
a
Explanation:
POINTS AND BRAINIEST ANSWER!!!!
How many valence electrons does oxygen have after bonding?
How many valence electrons does hydrogen have after bonding?
Answer:
hydrgen = i think it is 4
oxygen = i think it is 3
Explanation:
Name two-fluid technologies' that make
use of air.
what happens when the temperature of a solid reaches its melting point
Answer:
it melts
Explanation:
ZOON ANYONE I need a link
Answer:
Sorry can't right now and theres pedos out there so no
Love, lavenderhelper
Answer: what even is this kind of answer
Explanation:
30 points!!
What is the mass of a 10 gram sample of potassium-42 that will remain unchanged after 124 hours?
Explanation:
hope this helps you
Mark my answer as brainalist
PLS HELP ANYONE PLS BEGGING AT THIS POINT
What is the mass of 12 moles of tin?
Select one:
O a.118.719
O b. 1409
O c.0.109
O d. 1, 400g
Answer: 12 moles of tin is 1,400 or D
It might also be C
Explanation:one mole of tin is 118.71 so that times 12 is equal 1,424 . Round 1,424 and it is 1,400
What is the chemical symbol for salt?
Answer: chemical formula of table salt is NaCl
Explanation:
Gravity is a force that every mass exerts on every other mass. When you jump up in the air, not only does the Earth
exert a gravitational force on you, but you also exert a gravitational force on the Earth. You, of course, fall back down to
the Earth. Which of the following explains why the Earth is not moving toward you when you jump up in the air?
A. Earth exerts a gravitational force on itself.
B. You don't weigh enough to affect Earth's surface.
C. Your mass is very small compared to Earth's mass.
D. Earth's fixed orbit around the Sun keeps it from moving
Answer:
Brainliest A and I want brainliest please
Explanation:
That pull is gravity at work. Every object in the universe that has mass exerts a gravitational pull, or force, on every other mass. The size of the pull depends on the masses of the objects. You exert a gravitational force on the people around you, but the Gravity or gravitational forces are forces of attraction. We're not talking about finding someone really cute and adorable. It's like the Earth pulling on you and keeping you on the ground. That pull is gravity at work.
Every object in the universe that has mass exerts a gravitational pull, or force, on every other mass. The size of the pull depends on the masses of the objects. You exert a gravitational force on the people around you, but that force isn't very strong, since people aren't very massive. When you look at really large masses, like the Earth and Moon, the gravitational pull becomes very impressive. The gravitational force between the Earth and the molecules of gas in the atmosphere is strong enough to hold the atmosphere close to our surface. Smaller planets, that have less mass, may not be able to hold an atmosphere.at force isn't very strong, since people aren't very massive.
Obviously, gravity is very important on Earth. The Sun's gravitational pull keeps our planet orbiting the Sun. The motion of the Moon is affected by the gravity of the Sun AND the Earth. The Moon's gravity pulls on the Earth and makes the tides rise and fall every day. As the Moon passes over the ocean, there is a swell in the sea level. As the Earth rotates, the Moon passes over new parts of the Earth, causing the swell to move also. The tides are independent of the phase of the moon. The moon has the same amount of pull whether there is a full or new moon. It would still be in the same basic place.
Why are anions negative?
Answer:
An anion has more electrons than protons, consequently giving it a net negative charge .
hope it helps!
How many grams of water (H2O) are there in 2.60 mol of the compound?
Answer:
46.839728 grams of water
Explanation:
1 mole is equal to 1 moles H2O, or 18.01528 grams
18.01528 times 2.6 = 46.839728
There are 46.839728 grams h20 in 2.60 mol of the compound
Which of the following statements is true about nuclear fusion? (4 points)
It occurs in the sun.
A heavy atom is split.
It can be controlled easily.
An electron is lost by the atom.
Let's understand Nuclear fusion first:
Nuclear fusion is a reaction in which two or more atomic nuclei are combined to form one or more different atomic nuclei and subatomic particles.In the core of the Sun, hydrogen is being converted into helium. This is called nuclear fusion. It takes four hydrogen atoms to fuse into each helium atom. During the process some of the mass is converted into energy.Nuclear fusion reactions are difficult to control.Fusion does not produce nuclear waste, only the core of the reactor remains radioactive and only for 100 years.Learn more:
brainly.com/question/25909835
Air thermals are updrafts of warm air that rise from
the ground into the sky. By flying in a spiral pattern
birds are able to ride these air currents to higher
altitudes.
What process enables birds to fly to higher altitudes without flapping their wings,
while riding these air thermals?
A. convection because warm air sinks and cool air rises.
B. convection because warm air rises and cool air sinks.
C. conduction because warm air sinks and cool air rises.
D. conduction because warm air rises and cool air sinks
Answer:
B. convection because warm air rises and cool air sinks.
Explanation:
The processes that enables birds to fly to higher altitudes without flapping their winds while riding air thermals is called convection.
Convection is one of the forms of heat transfer usually found in gases and liquids.
In convection density differences due to temperature changes causes the circulation. Warm air is less dense and it is hotter. It rises up from the surface where it is warmed Cold air sinks to replace the warm air. Cold air form when the air loses its energy to the surrounding. By virtue of this, birds are able to take advantage of it for their flight.Compared to 3.011 × 10²³ atoms of Na, 1.0 mole of Carbon
A. has the same number of atoms
B. has twice as many atoms
C. not enough information
D. has half as many atoms
Compared to 1.0 mole of H₂S (molar mass 334 g/mol), 1.0 mole of NH₃ (molar mass 17g/mol)
A. has half the number of molecules
B. not enough information
C. has twice the number of molecules
D. has the same number of molecules
Thank you!
1. B. has twice as many atoms
2. D. has the same number of molecules
Further explanationThe mole is the number of particles(molecules, atoms, ions) contained in a substance
1 mol = 6.02.10²³ particles
Can be formulated
N=n x No
N = number of particles
n = mol
No = Avogadro's = 6.02.10²³
1.
3.011 × 10²³ atoms of Na, 1.0 mole of Carbon
1 mole Carbon = 6.02.10²³ atoms, so 1 mole of Carbon B. has twice as many atoms of Na
2.
1.0 mole of H₂S (molar mass 334 g/mol), 1.0 mole of NH₃ (molar mass 17g/mol)
Both have the same number of moles, so they have the same number of molecules
1.0 mole of NH₃ D. has the same number of molecules as 1.0 mole of H₂S
A tank of nitrogen has a pressure of 2.5 atm and is combined with a tank of Ar with at final pressure of 3099 mmHg. What is the pressure of the Ar in mmHg?
NOTE: convert the partial pressure of Ny to mmHg.
a. 1560 mmHg
b. 0.600 mmHg
C. 4.08 atm
d. 1199 mmHg
Answer:
the awnser is c
Explanation:
Answer:
i do not know this one ooooo
How many moles is 55 g of NaCl?
Help please with steps :(
Answer:
0.94 mol NaCl
General Formulas and Concepts:
Chemistry - Atomic Structure
Reading a Periodic TableUsing Dimensional AnalysisExplanation:
Step 1: Define
55g NaCl
Step 2: Identify Conversions
Molar Mass of Na - 22.99 g/mol
Molar mass of Cl - 35.45 g/mol
Molar Mass of NaCl - 22.99 + 35.45 = 58.44 g/mol
Step 3: Covert
[tex]55 \ g \ NaCl(\frac{1 \ mol \ NaCl}{58.44 \ g \ NaCl} )[/tex] = 0.941136 mol NaCl
Step 4: Check
We are given 2 sig figs. Follow sig fig rules and round.
0.941136 mol NaCl ≈ 0.94 mol NaCl
In 55 grams of sodium chloride (NaCl), 0.94 moles of NaCl is present.
What are moles?Number of moles of any substance is defined as:
n = W / M
Where, W = given mass or weight
M = molar mass
In the question given weight of NaCl is 55 g.
And molar mass of NaCl is 58.44 g/mol
Now we put all these values in the above equation, we will get:
n = 55 / 58.44 = 0.94 mol
Hence, 0.94 mole of NaCl is present in 55g of NaCl.
To know more about moles, do visit below link:
https://brainly.com/question/15374113
How many double bonds are in CO2?
O 1
o 2
O 3
Explanation:
In CO₂ there's 2 double bonds.
Structure:
O=C=O (linear) (180°)
Therefore,
Option C is correct✔
PLS HELP ASAP I DONT HAVE TIME ONLY 5 MINUTES AND IM DOING OTHER THINGS HELPP
Answer:
The reactants of photosynthesis are Carbon Dioxide and water. The products are Glucose (or starch/sugar) and Oxygen. The autotroph uses light energy from the sun in order to complete this process. In the formula, the arrow is the light energy.
Explanation:
Answer:
I've inserted an image.
Explanation:
Hope this helps!
(:
why is tate langdon from ahs so hot
Answer:
hes actually kinda hot tho
Explanation:
Answer:
he's a literal daddy
Explanation:
his parents
Gene therapy has been used to treat and cure cystic fibrosis. Cystic fibrosis is caused by a
in a single gene.
Answer:
I believe it is mutation.
Explanation:
Atomic bombs send out a shock wave when they are detonated. This occurs because the bomb's detonation superheats the air particles nearby, which cause them to bump into other air particles that further the wave. Which statement can most likely be made about the shock waves of atomic bombs? They are a mechanical waves. They are an electromagnetic waves. They will act like x-rays. They will act like light rays.
Answer:
The correct answer is - They are mechanical waves.
Explanation:
Atomic bombs after detonated they send a shock wave that makes a movement of particulate matter that leads to transfer of a high amount of energy that superheats the air medium that travels as a mechanical shock wave.
The shock wave that is sent out by a detonated atomic bomb is a longitudinal mechanical wave that transfers the energy to the neighboring particles of the air.
Air is made up of different gases such as oxygen nitrogen and carbon dioxide