Answers
Answer:
12.5
1.95x10^-10
1.5
0.5
in that order
Explanation:
Related Questions
Equation for the complete chemical reaction, ionic equation, ionic net equation
Answers
Answer:
an ionic equation is a chemical equation in which the electrolytes in aqueous solution are expressed as dissociated ions. ... Additionally, the net charge is the same on both sides of the equation.
Explanation:
So what you end up with is you always end up H+ plus OH- yields H2O, because HCl, and NaOH, since they're strong, they fully dissociate. So the Na+, and the Cl - are spectator ions. So with a strong acid and strong base, the net ion equation is always H+ plus OH- yields H2O.
Which of the following DOES NOT belong to the group?
A.eyes
B.mouth
C.large intestine
D.stomach
Answers
Answer:
eyes
Explanation:
It is because the mouth, large intestine and stomach comes in the digestive system abd eyes doesn't.
HOPE THIS HELPS
it doesn’t have anything to do w the others
an object that is moving will stop when
Answers
Answer:
factor
Explanation:
Answer:
something pushes or pulls it to a stop.
If N and O were to bond, the difference in electronegativity would be
and we would expect the bond to be
ionic, covalent)
Answers
Answer:
The bonds between nitrogen and oxygen are covalent bonds made from sharing electron pairs. The electronegativity of oxygen is 3.5.
What causes rocks to change and form into new types of rocks?
Answers
Answer:
The three main rock types are igneous, metamorphic and sedimentary. The three processes that change one rock to another are crystallization, metamorphism, and erosion and sedimentation. Any rock can transform into any other rock by passing through one or more of these processes. This creates the rock cycle.
A light-year is a way to measure ______ in space.
O time
Odistance
PLS HELPPPPPPPPPPPPPPPPPPPPPPPPPLLLLLPL
Answers
Answer:
Distance
Explanation:
The light-year is a measure of distance, not time. It is the total distance that a beam of light, moving in a straight line, travels in one year.
Answer:
distance pooh <3
Explanation:
Metion two common types of flames and conditions under which each is produced
Answers
Answer:
natural flame,oxidising flame
Which of the following pairs of elements will form covalent bonds with each other? PLEASE HELP
Answers
The pair of elements which will form covalent bonds with each other are Si (Silicon) and N (Nitrogen). Hence the correct option is (B).
What is Covalent Bond ?
A covalent bond is a chemical bond that involves the sharing of electrons to form electron pairs between atoms.
These electron pairs are known as shared pairs or bonding pairs, and the stable balance of attractive and repulsive forces between atoms, when they share electrons, is known as covalent bonding.
Silicon and nitrogen forms strong covalent bond . This stable covalently bonded material does not readily sinter and cannot be heated over 1850⁰C as it dissociates into silicon and nitrogen.
Therefore, The pair of elements which will form covalent bonds with each other are Si (Silicon) and N (Nitrogen). Hence the correct option is (B).
Learn more about Covalent Bond here ;
https://brainly.com/question/19382448
#SPJ2
8
This wasp was viewed under a microscope with a 40x objective lens and a 10x
eyepiece lens.
What was the total magnification
help its for my assessment
25 points
Answers
Answer:
400x
Explanation:
magnification=magnification of objective lens*magnification of eyepiece lens
m=40*10
m=400x
what does indicator that a chemical change has occurred?
Answers
Answer:
change in color or state of matter
Explanation:
hope i helped! ❤❤
If an atom contains one electron and one proton will it carry any charge or not?
Answers
Answer:
That atom will not contain any charge because one negative charge of single electron and one positive charge of single proton are neutralized by each other.
The surface currents of Earth’s oceans are most likely created by which of the following?
Answers
Answer:
global wind patterns. the rotation of the Earth. the shape of the ocean basins.
Explanation:
PLS ANSWER THIS FOR ME ILL GIVE BRAINLIEST
ok so pls watch episode 18 (Eureka Videos is the channel) and then answer all these
When molecules evaporate they are gaining enough _______ to break the forces of __________ holding them together. This might be compared to the popping of popcorn.
Why can't we see the vapour molecules that have escaped?.
How does increasing the heat affect the rate of molecules popping out into the vapour state?
The colder molecules get, the _________ they move
Answers
Vapor
It can not be seen cause it is in gaseous form
The hotter it gets the faster the molecules move
Slower
32. A sample of potassium is composed of 23% K-39, 48% K-40 and the remainder K-41. Calculate the average mass
of the sample.
Answers
Answer:
40.06 amu.
Explanation:
From the question given above, the following data were obtained:
Isotope A (K-39)
Mass of A = 39 amu
Abundance of A = 23%
Isotope B (K-40)
Mass of B = 40 amu
Abundance of B = 48%
Isotope C (K-41)
Mass of C = 41 amu
Abundance of C = 100 – (23 + 48)
Abundance of C = 100 – 71
Abundance of C = 29%
Average mass =?
Average mass = [(Mass of A × A%)/100] + [(Mass of B × B%)/100] + [(Mass of C × C%)/100]
= [(39 × 23)/100] + [(40 × 48)/100] + [(41 × 29)/100]
= 8.97 + 19.2 + 11.89
= 40.06 amu
Thus, the average mass of potassium is 40.06 amu
You want to compile a list of properties of a substance , but you don't have a way to measure mass it volume. What kinds of properties can you determine without knowing the amount of matter in the sample?
Answers
Explanation:
I Would Determine Mass,Volume And Weight
explain what keeps the electrons confined in the space surrounding the nuleus
Answers
Answer:
Electrons are trapped inside the atom because of the attraction forces with positively charged protons that are found in the nucleus.
What name is given to this type of diagram
Answers
Answer:
There's no graph attached to the question
What do you call a rock that cooled rapidly outside a
volcano?
Answers
Explanation:
intrusive rocks.....
.
There are three bulbs powered by a battery. What will happen if the middle light burns out.
Answers
Answer:
ABC
Explanation:
Select the correct answer.
Beryllium (Be) and fluorine (F) combine to make the compound BeF2. What is the chemical name for this compound?
A.
beryllium fluoride
B.
beryllium fluorine
C.
beryllide fluoride
D.
beryllide fluorine
Answers
Answer:
A number is right I think
Answer:
A.
beryllium fluoride
I hope it is helpful...
Someone please answer this in like 40 minutes
Before it’s due. Explain the answer too
Answers
Answer:
kkkwkisa
Explanation:
wulaoaiq8qiIq8qiaik
Why can't hydrogen be grouped in a family?
Answers
Answer:
A Family Portrait
That element is NOT in the family. When we told you about families, we said that they were groups of elements that react in similar ways. Hydrogen is a very special element of the periodic table and doesn't belong to any family. While hydrogen sits in Group I, it is NOT an alkali metal.
Answer:
Explanation:
The chemical properties are so different and cannot be group into a family Hydrogen is the simplest, smallest and lightest of the elements. Unlike the other elements of the periodic table, the combination of properties it exhibits doesn't match any one single grouping or family.
Which of the following best describes the distribution of the world’s food supply? Select all that apply.
Still unevenly distributed leaving millions starving to death.
Quickly changing to be evenly distribute based on humanitarian efforts.
Slowly changing to be slightly more evenly distributed based on humanitarian efforts.
Evenly distributed throughout the population of the world now.
Answers
Answer: It would be A and C
Explanation: I did the test and got it right. Hope this helps!
Answer:
A + C
Explanation:
ur an amazing person have a great day :3
quote for today : ~dont trust anyone to much remeber the devil was once angle
What does 10% humidity in a weather report indicate?
A)the level of humidity is high.
B)the level of humidity is low.
C)the level of humidity is moderate.
D)the air can not hold anymore water.
Answers
Answer:
B
the humidity is the % of water in the air and it is out of 100% of the air. so 10/100 is low
Answer:
B
Explanation:
30%-50% is considered moderate. Anything below 30% is considered dry, anything above 50% is considered high. I hope this helps!
An atom of sodium -23 na -23 had a net charge of +1 identify the number of protons, neutrons, and electrons in the atom then explain how you determined the number of each type of particle
Answers
Answer:
Protons = 11
Electrons = 10
Neutrons = 12
Explanation:
The atomic number of an element is the number of protons present in the nucleus of an atom of that element. A neutral atom of an element contains equal number of protons and electrons, therefore, the atomic number is also the electron number for a neutral atom.
The mass number is the sum of proton and neutrons in the nucleus of an atom of an element.
The atomic number of sodium-23, Na-23 is 11 while the mass number is 23.
An atom of sodium that has a net charge of +1 has lost an electron. Therefore, from the above information, the number of protons, neutrons and electrons present in this atom of sodium-23 is as follows:
Protons = 11
Electrons = 11 - 1
Electrons = 10
Neutrons = 23 - 11
Neutrons = 12
What is the man’s weight on Mars where the acceleration due to gravity is 3.7 m/s2?
Answers
Answer:
6.39 × 10^23 kg (0.107 M⊕)
Explanation:
The outpost structure of the bacteria cell is the.
Answers
Which is true of cell differentiation?
A. Tissues produce various stem cells.
B. Stem cells become different types of cells.
C. Unicellular organisms become multicellular
Answers
Answer:
B
Explanation:
When stem cells differentiate, they are different (almost like mutation).
Answer:
osifigkjgjcjfjrjrkrjrktktkkfkfkrkrkrktkgktkt
Use the drop-down menus to select the names of the labeled structures.
A:
B:
C
Answers
Answer:
A:petal
B:pistil
C:stamen
Explanation:got it right on edu 2021
Answer:
C
A
B
Explanation: on ED about Identifying Earth’s Layers
earth is one of the planets in the
Answers
Answer:
moon obviously
Explanation:
........