Answer:
Valence Shell
Explanation:
Some atoms have nearly eight electrons in their valence shell and can gain additional valence electrons until they have an octet. When these atoms gain electrons, they acquire a negative charge because they now possess more electrons than protons.
Particle A has very little mass in comparison to Particle B. Both particles are in the same atom. Which is the best conclusion about Particles A and B?
A) They have the same charge.
B) They are located in the nucleus together.
C) Particle A has a positive charge, and Particle B is neutral.
D) Particle A orbits the nucleus, and Particle B is located in the nucleus.
Answer:
A) They have the same charge.
B) They are located in the nucleus together.
C) Particle A has a positive charge, and Particle B is neutral.
D) Particle A orbits the nucleus, and Particle B is located in the nucleus.
Explanation:
I need help with this , here are the words ( black,radiation, time, holes and universe
For which applications would you choose a liquid over a gas or solid?
washing clothes
linking a brake pedal to the brake pads at the wheels of a car
deodorizing a room
carving a sculpture
dissolving sugar
painting a wall
making a gear for a machine
Washing clothes
linking a brake pedal to the brake pads at the wheels of a car
dissolving sugar
painting a wall
Explanation:
1.A sample has a mass of 15 g and a volume of 3 mL. Calculate the density.
Answer:
5 g/mLExplanation:
The density of a substance can be found by using the formula
[tex]density = \frac{mass}{volume} \\[/tex]
From the question
mass = 15 g
volume = 3 mL
We have
[tex]density = \frac{15}{3} = 5 \\ [/tex]
We have the final answer as
5 g/mLHope this helps you.
What is the majority of the atom composed of *TWO WORD ANSWER* ANSWER ASAP WILL AWARD BRAINLIEST! SCAM ANSWERS WILL BE REPORTED
Answer:
Most of the atom is empty space. The rest consists of a positively charged nucleus of protons and neutrons surrounded by a cloud of negatively charged electrons. The nucleus is small and dense compared with the electrons, which are the lightest charged particles in nature..
Explanation:
Hope it helps you..
Y-your welcome in advance..
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what is a acid and how does it react with metals (chemical reaction)?
Explanation:
Acids are substances whose ph is lower than 7.Acids react with most metals to form a salt and hydrogen gas.
Could somebody please give me an example of some physical properties for any substance?
Answer:
A physical property is a characteristic of matter that is not associated with a change in its chemical composition. Familiar examples of physical properties include density, color, hardness, melting and boiling points, and electrical conductivity.
Explanation:
You have been handed a 1892.6g sample of Rion and determine that it has
a volume of 200.0 mL. What is the density of Rion?
Answer:
9.46 g/mLExplanation:
The density of a substance can be found by using the formula
[tex]density = \frac{mass}{volume} \\[/tex]
From the question
mass = 1892.6 g
volume = 200 mL
We have
[tex]density = \frac{1892.6}{200} \\ = 9.463[/tex]
We have the final answer as
9.46 g/mLHope this helps you
1. A unit of mass used to express atomic and molecular weights. One proton or
neutron equals one mass unit.
Atom
Atomic mass
Nucleus
Amy
Protons
Neutrons
Uranium
Electrons
Hydrogen
Answer:
Atomic mass
Explanation:
It is the unit used o express atomic and molecular weights.
Hoàn thành dãy biến hóa sau :
S→SO2→SO3→H2SO4
Answer:
I don't know what your asking
Which is a chemical property of hydrogen?
A.
It is a light gas.
B.
It is a combustible gas.
C.
It is a colorless gas.
D.
It has a boiling point of -252.87°C.
E.
It is a good conductor of electricity.
Answer:
CExplanation:
It is a colorlessI hope you help by my answee
Convert 3,526 meters (m) into kilometers (km). (Don't forget units)
EN
Voranean
Answer:
3,526 meters (m) into kilometers (km) = 0.003526 kilometers
Explanation:
Save
Drag the tiles to the correct boxes to complete the pairs.
Which types of matter are these substances?
Tiles
element
compound
homogeneous mixture
heterogeneous mixture
Pairs
a cloud, which consist of small water droplets
distributed throughout the air
helium, a gas composed of identical atoms
rubbing alcohol, a liquid composed of chemically bonded
carbon, oxygen, and hydrogen atoms
sugar thoroughly dissolved in water
Submit
Answer:
1.heterogeneous mixture
2.element
3.compound
4.homogeneous mixture
Explanation:
The correct pairs are:
A cloud, which consist of small water droplets - Heterogeneous mixture
Distributed throughout the air
helium, a gas composed of identical atoms - Element
Rubbing alcohol, a liquid composed of chemically bonded - Compound
Carbon, Oxygen, and Hydrogen atoms
sugar thoroughly dissolved in water - Homogenous mixture.
In Heterogenous mixture, the composition of the mixture is not uniform. In Homogenous mixture, the composition is uniform throughout. Element is the combination of same atoms. Compound contains two or more elements.
Therefore, the correct pairs are,
A cloud, which consist of small water droplets - Heterogeneous mixture
Distributed throughout the air
helium, a gas composed of identical atoms - Element
Rubbing alcohol, a liquid composed of chemically bonded - Compound
Carbon, Oxygen, and Hydrogen atoms
sugar thoroughly dissolved in water - Homogenous mixture.
To know more about types of matter, visit:
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answer in the blank 1. Broken glass jar 2. Food scraps 3. Cooked rice 4. Plastic bags 5. Water
I don't understand ur question
Someone pls help me I will make you brain
Answer:
c
Explanation:
Answer:
I don't know either
Explanation:
I am sorry i can not answer you
what does the bottom layer represent?
Answer:
A blanket
Explanation:
bottom layer is a nice comfy blanket you could use to sleep with
Explanation:
Something comfy you can use for yourself or others.
The method of converting from an
amount of one substance to an
amount of another substance using a
balanced chemical equation.
Explanation:
one substance
+one substance=balanced of chemical equation
Which of these objects has the properties of a solid?
A.
desk
B.
water
C.
rain
D.
milk
True or false when heat is added to atoms the molecules vibrate much more slowly
Answer:
false
Explanation:
The particles are held together too strongly to allow movement from place to place but the particles do vibrate about their position in the structure. With an increase in temperature, the particles gain kinetic energy and vibrate faster and more strongly
All alkalis are bases but not all bases are alkalis. True or False?
Answer:
A substance that neutralizes an acid is generally called a base and the basic substances that are soluble in water and alkali and the properties of alkalis are due to these hydroxide ions(OH−). ... - Thus, conclusively it can be said that all alkalis are bases but all bases are not alkali.
Answer:
This is false
Explanation:
it is actually the opposite, all bases don't dissolve in water, but alkali is a base that does dissolve in water. So, alkalis are bases, but not all bases are alkalis
Pinky, message in one of my answers that doesn't have an comment on pls.. i wish i can tlk to u.. but this new system in brainly.. oof
Can someone make me a periodic table with color?
Answer:
The periodic table is also split into four blocks: s = red, p = green, d = yellow, and f = blue.
How many grams of H2O is needed to produce 0.75 moles of ?
Answer:
H2O2 + H2S → 2H2O + S? that is the answer
50 POINTS!!!!!!
Reactions that occur spontaneously must reach an energy threshold before they can proceed. The graph shows the amount of energy needed for a reaction to occur. Explain how enzymes are involved in this reaction and can affect the rate of this reaction.
Write an argument for the people of Westfield identifying the reddish-brown substance
Answer:
lol
Explanation:
HELP PLZZZZZZZ ASAP
Which best describe the kinetic energy of the particles in solids, liquids, and gases? Check all that apply.
Particles in solids have low kinetic energy.
Particles in solids have high kinetic energy.
Particles in liquids have moderate kinetic energy.
Particles in liquids have low kinetic energy.
Particles in gases have high kinetic energy.
Dissolving and melting are similar because both
A. result in a change in mass.
B. are kinds of physical change.
C. involve even mixing of substances.
D. result in new substances being formed.
Answer is B are kinds of physical change.
What volume of water has a mass of 1 kg?
Answer:
the value of water is 1000
Sodium reacts with chlorine to form the compound sodium chloride, or salt. The chemical formula below shows how the two elements combine into a compound.
2Na + Cl2 → 2NaCl
If the total mass of the reactants is 58.44 amu, what will be the total mass of the products?
116.88 amu
60 amu
58.44 amu
29.22 amu
Answer:
Its C
Explanation:
The law of conservation of mass says no atoms can be created or destroyed just rearranged so the mass at the beginning before the reaction would stay the same after it
Considering the Law of Conservation of Matter, the correct answer is the third option: the total mass of the products will be the same and has a value of 58.44 amu.
The Law of Conservation of Matter is also called the law of conservation of mass or the Law of Lomonósov-Lavoisier. This law postulates that "the mass is not created or destroyed, only transformed."
This means that the reagents interact with each other and form new products with physical and chemical properties different from those of the reagents because the atoms of the substances are ordered differently. But the amount of matter or mass before and after a transformation (chemical reaction) is always the same, that is, the quantities of the masses involved in a given reaction must be constant at all times, not changing in their proportions when the reaction ends.
In other words, then the mass before the chemical reaction is equal to the mass after the reaction.
So, in this case, if the total mass of the reactants is 58.44 amu, the total mass of the products will be the same and has a value of 58.44 amu.
Finally, the correct answer is the third option: the total mass of the products will be the same and has a value of 58.44 amu.
Learn more:
https://brainly.com/question/13383562?referrer=searchResultshttps://brainly.com/question/14236219Someone pls help me I will make you brain
Answer:
the 3rd option is the answer
Why do scientists create proxies?
Answer:
Proxies enable scientists to recreate climate conditions in different parts of history.
Explanation:
Proxies are characteristics of the weather in a certain period of time that have been preserved for different weather measurements like temperature, humidity, wind direction, and amounts of precipitation. The reason scientists create proxies because it "enables them to recreate climate conditions from different parts of time to have a better understanding on what weather was like during that time period."
Hope this helps.