Answer:
C. They have no charge and are located inside the nucleus
Explanation:
This is correct and can I have brainliest
Answer:
your dad and i don't care if i have been warned
Explanation:
he left for some milk
Which of the following pictures correctly shows the structure of hydronium ion?
Answer: The first picture
Explanation:
The structure of hydronium ion is correctly represented in the first structure where there are three hydrogen atoms and one oxygen atom.
What is an ion?An ion is defined as an atom or a molecule which has a net electrical charge. There are 2 types of ions :1) cation 2) anion . The cation is the positively charged ion and anion is the negatively charged ion . As they are oppositely charged they attract each other resulting in the formation of ionic bond.
Ions consisting of single atom are mono-atomic ions while which consists of two or more ions are called as poly-atomic ions . They are created by chemical interactions . They are very reactive in their gaseous state and rapidly react with oppositely charged ions resulting in neutral molecules.
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How many neutrons does protium have?
What is the mass of 1.2 mol IrI3?
Answer:
690 g IrI₃
Explanation:
To convert from moles to grams, you have to use the molar mass of the compound. The molar mass of IrI₃ is 572.92 g/mol. You use this as the unit converter in this equation:
[tex]1.2molIrI3 * \frac{572.92g}{1mol} = 687.504 g IrI3[/tex]
Round to the lowest number of significant figures which is 2 to get 690 g IrI₃.
the product of 173.06 times 0.21 should be reported as what using proper number of sig figs?
Answer:
36.3
Explanation:
The full answer would be 36.3426, but because of the 0.21, you round it down to 3 sig figs.
What causes the change within every twenty four hours from day to night on Earth?
A)
Earth's rotation on its axis
the tilt of Earth on its axis
Tarth's revolution around the sun
the distance from Larth to the Sun
Tamashenomena on the top of the sun that appear as dark spots compar
Please answer
Answer:
Earth's rotation.
Explanation:
Most of the options are obviously incorrect, with the exception of tilt. However, tilt is the cause of seasons, not days.
Answer: Earth's rotation on its axis
Explanation:
Earth Layers: describe each layer of makeup, location, and physical properties.be sure to include which layers are compositional and watch are mechanical
Answer:
Ok so the earth layers are
Crust, the surface of the earth
Mantle, where the lava usually comes from or how volcanos form due to the tectonic plates moving
outer core
inner core is the hottest
if you are asking for the compositional and mechanical layers that would be
Crust, mantle, core, Lithosphere, Asthenoshpere, Mesosphere, out core, and inner core
Mechanical: Lithosphere, Asthenosphere, mesosphere, outer and inner core
Compostional: Crust, Mantle, and core
The
which are represented by a single uppercase letter, or represented by an uppercase letter followed
by a lowercase letter. This tells you the types of elements in the compound.
Answer:
Elements
Explanation:
The elements which are represented by a single uppercase letter, or represented by an uppercase letter followed by a lowercase letter. This tells you the types of elements in the compound.
Elements are one of the simplest chemical substances that cannot be decomposed in a chemical reaction or by any chemical means. They are made up of small indivisible particles called atoms, all having the same number of protons.
I NEED HELP!!! How is continental crust different from oceanic crust?
Oceanic crust is thinner and more likely to sink.
Oceanic crust is thicker and more dense.
Continental crust is more dense and lighter.
Continental crust is thicker and more likely to sink.
Answer:
A
Explanation:
Oceanic crust is thinner and more likely to sink
Answer:
The answer is A Oceanic crust is thinner and more likely to sink.
Explanation:
I hope this is right sorry if it's not.
lol someone help me with this
Answer:
Its saying how many electronics are in your house.
Explanation:
Such as a tablet or a tv.etc
In Bohr’s model of the atom, where are the electrons and protons located?
How many atoms in 134 moles of an element B?
Answer:
8.06966961e+25
Explanation:
Atom = Mole / 6.0221415E+23
1 Mole = 6.0221415E+23 Atom
Answer:
8.06948e+25 atoms
Explanation:
mole = number of particles/avogadro number
number of atoms = mole × avogadro number
number or atoms = (134) x (6.022× 10²³) = 8.06948e+25 atoms
A woman is found dead on a boat floating in the middle of a lake at 4:30am. There is blunt force trauma to her head but no other discernable damage. She is approximately 30 pounds overweight. She is wearing thermal clothing and a winter jacket, gloves, and hat. Climatological data indicate it was a clear, cold, and windy night with no precipitation. Calculate the time of death based only on a body temperature of 15.6°C (60.8°F)? Now consider the other factors presented. How would each affect this estimation?
Answer:
Dead bodies lose one degree Celsius per hour, which we could deduce that the person died 12 hours ago.
Explanation:
On the other hand, it is very important to take into account that this number of hours is very approximate, since not only does it vary greatly with the environment and the acclimatization of the environment in which the person dies, but also in this specific case, insulating clothing was presented , which made the loss of body heat much more difficult and could easily be more than 12 hours.
The minimum for this particular situation is 12 hours to 24 hours possible postmortem.
An atom can have 2.5 protons, as long as it also has 2.5
electrons.
TRUE. Or
FALSE
Ciara’s bike has rusted, which means that the iron in the metal changed to rust.
What has occurred?
an energy formation
an exothermic reaction
a chemical reaction
a precipitate formation
Answer:
CChem Reaction
Explanation:
Cuz it big brain time
The iron in the metal changed to rust, which is a chemical reaction. Therefore, option (C) is correct.
What is the rusting of iron?The rusting of iron is an oxidation reaction in which the iron combines with oxygen in the air in the presence of water to produce Fe₂O₃.xH₂O, a hydrated iron (III) oxide.
This hydrated iron (Ill) oxide is rust and the color of rust is reddish-brown. This reddish-brown rust can be seen on iron nails, pipes, and railings. on. Rust is formed when the iron is exposed to oxygen in the presence of moisture and is not an instantaneous reaction. Rusting of iron takes place over a long period of time.
Fe (s) + O₂ (g) + xH₂O (l) → Fe₂O₃. xH₂O (s)
The oxidation state of iron increases which is followed by the loss of electrons as a result of the rusting reaction. Iron(III) oxide or ferric oxide has the iron atom has an oxidation state of +3.
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One fitness magazine suggested that the food that you eat is like a battery because it has energy. Do you think that
the banana that Mila ate had energy? Explain why you think this
Answer:
Explanation:
In this case, the fitness magazine compared the food we eat with a battery because the food provides energy for the human body to perform its daily activities.
The banana is an excellent source of energy, as it is a fruit with a high content of carbohydrates and fructose, it is an excellent food to be eaten before physical exercise, as it provides the muscles with enough energy to increase performance before and after exercise. , is a fruit rich in potassium, magnesium, phosphorus, and vitamins a and c, which gives greater strength and energy.
PLZ HELP ME I WILL MARK BRAINLIEST. This is my THIRD time posting my question because people keep on putting random answers. If you do not know the question please do not answer it and leave it to someone else. Thank you, and my question is on the attached image below
Answer:
Are you looking for seasons on earth as it revolves around the sun? If so A is the spring equinox, C is the summer solstice, E is the autumn equinox and G is the winter solstice
Explanation:
PLZ HELP ME!!!!!!!!!!!!!!!
Answer:Graduated Cylinder
Explanation:
You use the water displacement test to find the volume of irregular shaped objects.
Answer:
Graduated Cylinder
Which of the following has a higher electronegativity oxygen or selenium?
Answer:
Between oxygen and selenium, oxygen is more electronegative because of more ionisation energy and small size
Explanation:
MAJOR AMOUNT OF POINTS
What is the chemical formula of wood?
Answer:
C₆H₁₀O₅
Explanation:
In chemistry, we denote any molecule with carbons, hydrogens, and other elements combined together as organic compounds. This is where get get "Organic Chemistry" from.
Wood is going to be an organic compound.
Answer:
C₆H₁₀O₅
Explanation:
At which temperature would air hold the LEAST water vapor?
A. 13°C (55°F)
B. 35°C (95°F)
C. 24°C (75°F)
D. 2°C (36°F)
Answer:
2°C
Explanation:
The answer is D because cooler air holds less water vapor than warmer air, and 2°C is the coldest choice, so there's your answer!
At 2°C (36°F) temperature would air hold the LEAST water vapour. Hence, option D is correct.
What is temperature?Temperature expresses hotness and coldness or a measure of the average kinetic energy of the atoms or molecules in the system.
At 2°C (36°F) temperature would air hold the LEAST water vapour because cooler air holds less water vapour than warmer air, and 2°C is the coldest choice.
Hence, option D is correct.
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Plz help! The best answer will be marked as brainliest!
Make a funny sentence for flammability and compounds for Magnesium
Here is an example for Mercury, it HAS to for Magnesium
“I love to travel but I do corrode aluminum so we won’t be flying off on adventures in airplanes planes anytime soon”
Answer:
This is hilarious, every time I ignite, they feed me water, little do they know this heat will defeat, and hydrogen only makes me stronger!
Explanation:
When Hg is burning, it uses the oxygen from H2O and turns it into hydrogen gas, and that contributes to the burning.
List and describe six forms of energy.
Answer:
Gravitational energy, electric energy, magnetic energy, nuclear energy, thermal energy, chemical energy.
Explanation:
gravitational energy - the energy resulting from the attraction of two masses to each other
electric energy - energy from a static or moving electrical charge.
magnetic energy - energy from the attraction of opposite magnetic fields, repulsion of like fields, or from an associated electric field
nuclear energy - energy from the strong force that bonds protons and neutrons in an atomic nucleus
thermal energy - also called heat, this is energy that can be measured as temperature. It reflects the kinetic energy of atoms and molecules
chemical energy - energy contained in chemical bonds between atoms and molecule
mechanical energy - the sum of the kinetic and potential energy
radiant energy - energy from electromagnetic radiation, including visible light and x-rays (for example)
In an ionic bond
a. electrons are shared equally
b. protons are transferred
c. electrons are shared unequally
d. electrons are transferred
Answer: a chemical bond; in which one atom donates an electron to another atom
Explanation:
Which technology is shown in the photograph?
A. Negative controls
B. Biostimulation reaction
C. Gel electrophoresis
D. Polymerase chain reaction
Answer:
C
Explanation:
Apex
The diagrams below represent three phases of matter labeled A,B and C. Which table correctly identifies the phases of matter represented by the diagrams? *
Answer:
The correct answer is 1
Explanation:
From the above, we will note the following:
Diagram A is liquid because it takes the shape of its container and it also has a specific volume. The particles are not tightly packed.
Diagram B is gas because the particles are freely moving colliding with one another and with walls of the container.
Diagram C is solid because the particles are tightly packed and are not freely moving.
Therefore, Option 1 is the correct answer.
Answer: 1
Explanation: My professor said it was correct
Which types of reactions would result in the production of gas?
PLEASE HELP NOW!! worth lots of points
Answer:
farts
Explanation:
Which of the following statements describes a difference between a chemical change and a physical change in a substance
Explanation:
A physical change is one that alters the physical properties of matter (particularly the form and state).
A chemical change is one in which new kind of matter is formed. It is always accompanied by energy changes (evolution or absorption of energy in form of heat or light or both).
Now, the salient differences between physical and chemical changes;
Physical changes are easily reversible whereas chemical changes are not easily reversible. Physical changes lead to the production of no new kinds of matter whereas chemical changes leads to the production of new kinds of matter. Physical changes involves no change in mass whereas chemical changes involves change in mass. Physical changes require little energy whereas considerable amount of energy is needed for chemical changes.Answer:
The result of a chemical change is a different composition and is often hard to reverse; in a physical change, the composition remains the same and is often easy to reverse.
Explanation:
A graduated cylinder is filled to 10.0 mL with water and a piece of granite is placed in the cylinder displacing the level to 23.7mL . what is the volume of the granite piece in cubic centimeters?
Answer:
13.7 cubic centimeters
Explanation:
23.7-10=13.7mL
Do you think MgO has a higher or lower
melting point than NaCl? Why?
Answer:
Magnesium Oxide (MgO) has a higher melting point than Sodium Chloride (NaCl) which is around 2,800 degrees Celcius. This is because its Mg2+ and O2- ions have a greater number of charges, and so form stronger ionic bonds, than the Na+ and Cl– ions in Sodium Chloride.
Which describes 5 molecules of water?
1. 2 H2O
2. H2O3
3. 5 H2O
5 molecules of water is 5 H2O.
One water , H2O. molecule consist of one oxygen atom bonded with two atoms of hydrogen. The structure of water molecule is bent. Water is a polar compound. Oxygen is more electronegative than the hydrogen atom. The oxygen atom get partial negative charge and the hydrogen atoms get partial positive charge. Water is a universal solvent. The hydrogen and oxygen atoms are held together by a covalent bond . covalent bond is formed by the sharing of electrons between the two atoms. water The chemical name of water is Dihydrogen monoxide.
Thus, 5 molecules of water is 5 H2O.
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