Answer:
Explanation:
Water is called the "universal solvent" because it is capable of dissolving more substances than any other liquidIt is water's chemical composition and physical attributes that make it such an excellent solvent. Water molecules have a polar arrangement of oxygen and hydrogen atoms—one side (hydrogen) has a positive electrical charge and the other side (oxygen) had a negative charge. This allows the water molecule to become attracted to many other different types of molecules. Water can become so heavily attracted to a different compound, like salt (NaCl), that it can disrupt the attractive forces that hold the sodium and chloride in the salt compound together and, thus, dissolve it.
Determine la concentración de 10 ml de HCl que fueron valorados con 5 ml de NaOH 0.01 M. Seleccione una: a. 0.04 M b. 10 M c. 1 M d. 0.01 M e. 0.005 M
Answer:
0,005 M
Explanation:
Dado que:
Concentración de ácido (CA) = lo desconocido
Volumen de ácido (VB) = 10ml
concentración de base (CB) = 0.01 M
Volumen de base (VB) = 5 ml
Número de moles de ácido (NA) = 1
Número de moles de base (NB) = 1
Desde;
CAVA / CBVB = NA / NB
CAVANB = CBVBNA
CA = CBVBNA / VANB
CA = 0.01 × 5 × 1/10 × 1
CA = 0,005 M
PLEASE HELP WILL MARK BRAINLIEST
Answer:
1. protons
2. hydrogen
3. protons plus neutrons
4. nuclear force
5. they are composite particles
6. proton-positive-inside nucleus; neutron-no charge-inside nucleus; electron-negative-outside nucleus/electron cloud
7. sublevels
8. 4 energy levels
Explanation:
Nuclear reactions that continue because they form particles that carry on the reaction are called
a) self sustaining reaction
b) explosion
c) chain reaction
d) nuclear reaction
Answer:
Its NOT D its C. chain reaction
Explanation:
TOOK THE TEST
Condensation is a phase change that
O has an increase in kinetic energy
O has no change in potential energy
O is exothermic
O is endothermic
Answer:
endothermic
Explanation:
condensate is an endothermic change
A Rottweiler dog is born with a long tail and when it is a few days old its tail is cut to be shorter. Several years later, the dog has eight puppies. Based on this information, how many puppies would you expect to have short tails like their mother's? A. 4 B. 8 C. 0 D. 2
Answer:
I think it's A or D
Explanation:
apologies if I get this wrong..
Answer:c.0
Explanation: hopefully this isn’t wrong, but wouldn’t it be 0 since it was something the mother did later on so it really wasn’t a trait of her? And also the mother didn’t born with a short tail?
determine the mass number and the atomic number of a chlorine atom that has 17 protons and 18 neutrons.
Answer:
35.453 atomic mass units
You can use Phet (Atomic masses, Elements and more) for Chemistry
The seasons of the Earth are the result of --
a
the tilt of the Earth and its orbit around the Sun.
b
the Sun having a large gravitational pull.
c
the orbit of the moon around the Earth.
d
the continual rotation of the Earth on its tilted axis.
Answer:
the tilt of the Earth and its orbit around the Sun.
Explanation:
The seasons on the earth is as a result of the tilt of the earth and its orbit around the sun.
These phenomenon causes the four seasons of the earth. The earth is tilted at an angle of 23.5° from the perpendicular.
This causes the differences in yearly exposure of parts of the earth to solar radiation.
At some points, a part can experience very high insolation whereas it is low in other parts.
These variations results in the seasons on the earth.
how many atoms are in the outer-most shell in order for it to be stable?
Answer:
8 Electrons
Explanation:
Got it from siri lol :) Have a good day.
Which mass and atomic number is correct for the following isotope: carbon-14
explain your answer
Answer:
Explanation:
Isotope notation is of the form
A
Z
X
where
Z
is the atomic number (number of protons),
A
is the mass number (sum of protons and neutrons), and X is the element.
In Carbon- 14 , 14 is the mass number (sum of protons and neutrons). This is our A .
Carbon has the atomic symbol C , and it has 6 protons. This is the atomic number, or A . Thus, the isotope notation for Carbon- 14 is 14 6 C
Hope this helps!
Explanation:
What are some of the ways that people can Reduce their use of fossil fuels?
Answer:
By using renewable energy sources.
Explanation:
You need to satisfy a quota of energy for (whatever country you live in). People do this by using the cheapest way of producing the most energy, the most efficient. Sounds great right? Wrong! It stuffs our atmosphere with harmful gasses like carbon dioxide. You can reduce the use of these fossil fuels by using renewable energy sources such as windmills, watermills, and most notable, solar panels!
Solar panels. Generating electricity with solar power instead of fossil fuels can dramatically reduce greenhouse gas emissions, particularly carbon dioxide (CO2). ... By going solar, you can reduce demand for fossil fuels, limit greenhouse gas emissions, and shrink your carbon footprint.
what is the name of the structure?
Answer:
The structure is called Propyl ethanoate
Why did Chief John Ross decided to sign a treaty with Albert Pike? A. The victory at Wilson’s Creek convinced Ross the Confederacy would win. B. He was working as a spy for the Union. C. He planned to ignore the treaty and move his tribe west. D. Because his tribe needed money to support their interests during the war.
Answer:
D, i think..
Explanation:
Answer:
It's A.
Explanation:
A.The victory at Wilson's Creek convinced Ross the Confederacy would win.
When two different liquids are mixed together, the liquid with the lesser density will float on top of the liquid with the greater density. If 11mL of a liquid having a mass of 55 g is mixed with 12 mL of a liquid having a mass of 48 g, which liquid will float on top? Explain your answer. (Show your calculation)
Answer:ddddddddddd
Explanation:rrrrrrrrrrrrrrrrrrrrrrrrr
Calculate the energy required to heat 622 g
mercury from 37°C to 42°C. The specific
heat capacity of Hg(l) is 0.138 J/g.° C.
Answer in units of cal.
Answer:
102.58 cal.
Explanation:
Given data:
Mass of mercury = 622 g
Initial temperature = 37°C
Final temperature = 42°C
Specific heat capacity of mercury = 0.138 J/g.°C
Energy required = ?
Solution:
Formula:
Q = m.c. ΔT
Q = amount of heat absorbed or released
m = mass of given substance
c = specific heat capacity of substance
ΔT = change in temperature
ΔT = 42°C - 37°C
ΔT = 5°C
Q = 622 g × 0.138 J/g.°C × 5°C
Q = 429.18 J
J to cal:
429.18 J × 1 cal /4.184 j
102.58 cal.
what is the name of sc(oh)3
Answer:
Scandium(III) hydroxide
Explanation:
May I have brainliest please? :)
The name of the chemical compound Sc(OH)₃ is "scandium hydroxide."
A polyatomic ion is a charged chemical species composed of two or more atoms that are covalently bonded together and carry an overall electric charge. Unlike simple ions, which are single atoms with a positive or negative charge, polyatomic ions are groups of atoms with a net positive or negative charge due to the gain or loss of electrons.
In this compound:
"Sc" represents the chemical symbol for scandium, which is the metal cation in the compound.
"(OH)₃" represents three hydroxide ions (OH⁻) bound to the scandium cation.
The hydroxide ion (OH⁻) is a polyatomic ion that consists of one oxygen atom and one hydrogen atom, and it carries a negative charge.
So, the name of the compound Sc(OH)₃ is scandium hydroxide.
Learn more about polyatomic ion from the link given below.
https://brainly.com/question/6689894
#SPJ6
The half-life of carbon-14 is 5,730 years. Dating organic material by looking for C-14 can't be accurately done after 50,000 years. Suppose a fossilized tree branch originally contained 4.30 grams of C-14. How much C-14 would be left after 50,000 years?
Answer:
0.010g of C-14 would be later after 50,000 years
Explanation:
The kinetics of radioactive decay follows the equation:
Ln (N / N₀) = -kt
Where N could be taken as mass after time t,
N₀ initial mass = 4.30g;
k is rate constant = ln 2 / t(1/2)
= ln 2 / 5730years = 1.2097x10⁻⁴ years ⁻¹
Replacing:
Ln (N / 4.30g) = -1.2097x10⁻⁴ years ⁻¹ * 50000 years
N / 4.30 = 2.36x10⁻³
N =
0.010g of C-14 would be later after 50,000 yearsAny 1 know These Chemicals??
Answer:
A) 1 & 2 only
Explanation:
Seeing that the chemicals present are in question one I take it you are asking about that question.
Decreasing the concentration causes a decrease in reaction process and also the total amount of product you would get out of the given reaction
Decreasing the temperature causes the molecules in this reaction to become less excited or reactive, thus causing the reaction to slow down
(nh4)3po4 compound name
sodium hydroxide reacts with excess hydrochloric acid. calculate the mass of sodium hydroxide required to produce 117g of sodium chloride
NaoH+HcI→ NaCl +H2O
Na0H=23+16+l= 40 9m
Nacl=23 +35.5 =58.5 gm
mass of NaOH required=117x40/ 58.5 =80 gm
Molar mass of NaOH = 23+16+1 =40g/mol
Molar mass of NaCl = 23+35.5 =58.5g/mol
To produce 58.5g NaCl 40g NaOH is required
So, to produce 117g NaCl {(40/58.5)×117}g = 80g NaOH is required.
Hope, this helps.
Why do clothes stick together when coming out of a dryer? And do the clothes start off as neutral?
here is what came up when i searched it up:
"The attraction between protons and electrons can also make clothes stick together in the dryer. When you dry clothes in the dryer, different fabrics rub together, and electrons from a cotton sock (for instance) may rub off onto a polyester shirt."
Sometimes, clothes can get stuck together after they come out of a dryer because of static electricity.
No, clothes may not start off as neutral. Whether clothes have static charges before going into the dryer depends on different things.
Why do clothes stick together when coming out of a dryer?Static electricity happens when certain things touch and create an uneven amount of electrons. This can cause one material to have a positive charge and the other to have a negative charge. When clothes move and touch each other in a dryer, this rubbing can cause static electricity.
If the clothes are cleaned and dried correctly, they should have no charge or be evenly charged.
Read more about clothes here:
https://brainly.com/question/18269825
#SPJ6
While cleaning out the garage, Duane found his old bicycle. Some of the paint had worn off, exposing the iron frame inside. Duane noticed that parts of the iron frame had become reddish-brown and rough and that parts were flaking off. What happened to Duane's old bicycle?
Answer:
It began to rust.
Explanation:
Because it had been left out for a long time
The table below lists the properties of a metallic element.
shiny, silver colored, forms +1 and +2 ions, compound with sulfur is bright red.
Where on the periodic table would this element most likely be found?
Group 1
Group 2
Group 12
Group 13
Answer:
Group 12
Explanation:
Answer:
I got all answers correct on my test and got 100%, this question was in the test which got correct
so your answer is group 12
Explanation:
Which group on the periodic table has the largest atoms?
Answer:
Cesium
hope this helps :)
Four students are carrying out different laboratory procedures. Piroja is mixing baking soda and vinegar to see if it reacts. Jason is heating salt water over a burner until the water evaporates. Kali is putting crushed ice and ice cubes on a table to see which melts first. Francisco is separating iron filings from sand using a magnet. Which experiment relies on convection? Piroja’s experiment Jason’s experiment Kali’s experiment Francisco’s experiment
Answer: Jason experiment
Explanation:
I just took the test
Answer: Jason's Experiment
The table below compares some of the properties of three different objects that are all made of pure substances.
Object Melting Point Mass Volume
X 327.5°C 10 g 25 cm3
Y 1,083°C 10 g 12.5 cm3
Z 327.5°C 5 g 12.5 cm3
According to the table, which of the following is most likely true?
Answer:
c. object y is made of a different substance than x and z
Explanation:
why well i did the study island and it told me the answer why so don't ask
how many types of bonds can a carbon atom form?
Answer:
four
Explanation:
Carbon contains four electrons in its outer shell. Therefore, it can form four covalent bonds with other atoms or molecules.
pls need asap!
A neutral atom of Bromine has a mass number (atomic mass) of 80. Which of the following statements about this atom is INCORRECT?
It would have 35 electrons
The number of protons and neutrons added together would equal 80
It would have 35 protons
It would have 35 neutrons
Answer:
C
Explanation:
in an equilibrium reaction with a Keq of 1×10^8,the-
A) reaction are favored
B) reaction is exothermic
C) products are favored
D) reaction is spontaneous
How many Hydrogen atoms are present in this molecular
formula: 3HCI?
Answer:
3
Explanation:
3 x H = 3H
I just need help this is hard
Answer:
you can do anything if you put your mind to it. Also, school is not everything in life there are amazinng things in life that you need school for. you got this.
