Answers
Answer:
1+1=2
2+2=4
Explanation:
I have really no idea why ur teacher gave u that
Related Questions
What is the correct name and HELPPP!!
What is the name and formula of an ionic compound containing the element with the
atomic number of 5 bonded to Carbonate? *
Boron Carbonide; B2(CO3)3
Boron Carbonate; B,CO,
Boron Carbide; B,CO,
Boron Carbonate; B2(CO3)3
Answers
Answer:
Boron Carbonate; B₂(CO₃)₃
Explanation:
For names, carbonide does not exist; that rules out the first option. Carbide refers to just a carbon atom, not carbon and oxygen as in the polyatomic ion carbonate. That rids us of the third option. We are left with boron carbonate with the formula BCO or boron carbonate with the formula B₂(CO₃)₃.
Recall the carbonate polyatomic ion's formula: CO₃²⁻
Thus BCO cannot be the formula.
Option 4 is your answer, Boron Carbonate; B₂(CO₃)₃.
To further check your answer, observe the oxidation states of boron and the polyatomic ion carbonate. Boron can exist in oxidation states of either 2+ or 3+, and carbonate is only 2-; in this formula, boron will exhibit a 3+ state to balance out with carbonate.
2x3+ = 6+; 3x2- = 6-
6+ + 6- = 0; balanced
What is the wavelength of radiation whose frequency is 1.56 x 10^12 Hertz?
Answers
Answer:
1.92×10¯⁴ m
Explanation:
From the question given above, the following data were obtained:
Frequency (f) = 1.56×10¹² Hz
Wavelength (λ) =?
Frequency and wavelength of a wave are related by the following equation:
v = λf
Where
'v' is the velocity of light with a constant value of 3×10⁸ m/s.
'λ' is the wavelength
'f' is the frequency.
Thus, we can obtain the wavelength of radiation by using the above formula as illustrated below:
Frequency (f) = 1.56×10¹² Hz
Velocity (v) = 3×10⁸ m/s.
Wavelength (λ) =?
v = λf
3×10⁸ = λ × 1.56×10¹²
Divide both side by 1.56×10¹²
λ = 3×10⁸ / 1.56×10¹²
λ = 1.92×10¯⁴ m
Therefore, the wavelength of the radiation is 1.92×10¯⁴ m
If the principal quantum number is n = 3, what are the name(s) of the subshells?
S
sp
spd
spdf
Answers
The name(s) of the subshells are s,p and d
Further explanationEach orbital in an atom consists of 4 quantum numbers
n is the principal quantum number.
l is the angular momentum / azimuthal quantum number
ml, the magnetic quantum number
ms, the electron-spin quantum number
Value of n: positive integer
value of l: s = 0, p = 1, d = 2, f = 3 , ..(n-1)
ml value: between -l to + l
ms value: +1/2 or -1/2
n=3, then the possible value of l is a maximum of n-1 = 3-1 = 2
So the value of subshells = 0,1 and 2
Answer:
C - s, p, d
Explanation:
If an equation has only one reactant it is a____ reaction.
A. Synthesis
B. Decomposition
C. Double replacement
D. Single replacement
E. Combustion
Answers
Answer:
The answer ia B ( decomposition)
Water is the only substance that can dissolve polar solutes. True or False?
Answers
Answer:
false!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Explanation:
The half-life of carbon-14 is about ____________ years.
Fill in the blank.
Answers
Answer:
5730 years
Explanation: for more on radiocarbon dating.) and hence explain why the amount of carbon-14 in the sample decays by half over any period of 5730 years.
What is better Music,Cartoons,Games,Anime,Knowledge Or Relaxation.
Answers
Answer:
anime
Explanation:
What is another name for energy lost through heat and sound?
Answers
Answer:Figure 1. Energy losses in an incandescent light bulb are very large; most of the input energy is lost in the form of heat energy. This means that when energy is converted to a different form, some of the input energy is turned into a highly disordered form of energy, like heat. ...
Explanation:
what is the electron configuration for lithium
Answers
Answer:
2,1
Explanation:
the electron configuration is 2s1
Match each term with the correct description below.
1. what is a charged atom that has gained one or more electrons?
2. What substance is held together by ionic bonds?
3. What metal and nonmetal transferrers electrons?
4. What particle has electrons that are shared unequally?
5. What forms when atoms share electrons by covalent bonds?
6. What two nonmetals share electrons?
7. What charge atom that has lost one or more electrons?
8. What two or metals "pooling" electrons?
a. metallic bond
b. covalent bond
c. anion
d. ionic bond
e. molecule
f. cation
g. compound
h. polar molecule
Answers
Answer:
1. anion
2. compund
3. ionic bond
4. polar molecule
5. molecule
6. covalent bond
7. cation
8. metallic bond
Explanation:
would dissolving sugar in water be a physical or chemical change
Answers
Answer:
Physical!!!!!
Good Luck!
Which class of organic compound is most likely to be used in anesthetics?
ether
ester
alkyl halide
carboxylic acid
Answers
Answer:
A.ether
Explanation:
i got it right on edg 2020 and they use ether in pokemon games to heal PP so that makes logical sense lol
The class of organic compounds that are used in anesthetics is:
A. Ether
It is a functional group consisting of C and O.
What are Anesthetics?Anesthetics are an assorted gathering of medications with especially unique synthetic designs, going from basic inorganic atoms like nitrous oxide to additional perplexing natural specialists.
Organic compound is one that contains a bond with a carbon particle. In ethers, the practical gathering that is available is C=O. Ether, as a fluid, discharges fumes that are breathed in. Another very powerful fluid sedative is propofol, controlled intravenously.
Thus, correct option is A.
Find more information about Organic compound here:
brainly.com/question/704297
How many elements are found in 2CuSO4?
A.5
B.4
C.2
D.3
Answers
Answer:
d
Explanation:
the reason is you have Cu S and O
How many grams are in a 3.1E21 atom sample of vanadium
Answers
hope that helps :)
All of the different organisms interacting in a pond make up
1.) a community
2.)the water cycle
3.) a population
4.) the habitat
Answers
Answer:
they would make up a population
Explanation:
all the inhabitants of a particular town, area, or country.
the population of frogs are very difficult to catch
What steps are involved in the process that turns sediment back to rock? Select all that apply.
compaction
transformation
cementation
recrystallization
these are the choices
Answers
Answer:
compaction and cementation
I love science by the way
Answer:
compaction and cementation
Explanation:
hope it helps <3
Which of the following happens to the particles when the temperature of liquid water drops?
kinetic energy decreases
kinetic energy increases and then decreases
kinetic energy increases
kinetic energy stays constant
Answers
Answer:
The Kinetic energy decreases
Explanation:
because the speed of the molecules slows down.
Select the correct answer
Giving brainliest
Answers
Answer:
I'm gonna say A and B
Explanation:
Not sure though
Hope I helped :)
Question 2
1 pts
Which of the following bonding types requires a TRANSFER of valence
electrons between two or more atoms?
Covalent
o lonic
Hydrogen
O Metallic
Answers
Answer:
I want to say its Lonic Bonding.
Explanation:
Ionic bonding is the complete transfer of valence electron(s) between atoms.
plsss helpp
will mark brainliest!!!
Answers
Answer:
high melting point
Explanation:
high melting point
I WILL GIVE BRAINLIEST TO YOU IF YOU ANSWER THIS (I KNOW THE ANSWER, SO IF YOU SOLVED WRONG, I WONT GIVE BRAINLIEST) SO YOU BETTER GIVE CORRECT ANSWER OR IM NOT GOING TO GIVE BRAINLIEST
Answers
Answer:
Corona Virus outbreak
2. Platinum metal has a density of 21.4 g/mL. If the block measures 3 cm, by 0.03 m, by 40 mm
how much does it weigh in milligrams?
Answers
Answer:
80mg
Explanation:
Given parameters:
Density of Platinum metal = 21.4g/mL
Dimension of the metal = 3cm by 0.03m by 40mm
Unknown:
Weight of the metal in milligrams?
Solution:
Density is the mass per unit volume of a substance.
Mathematically;
Density = [tex]\frac{mass}{volume}[/tex]
Volume of the platinum metal = l x w x h
Let us convert the dimension of the metal to the same unit;
3cm x 0.03m x 40mm
convert to cm;
100m = 1cm
0.03m = [tex]\frac{0.03}{100}[/tex] = 0.0003cm
-- 40mm;
1mm = 0.1cm
40mm = 40 x 0.1 = 4cm
Volume of the metal = 3 x 0.0003 x 4 = 0.0036cm³
1mL = 1cm³; so volume = 0.0036mL
Mass of the metal = 21.4 x 0.0036 = 0.08g
1g = 1000mg
0.08g = 0.08 x 1000 = 80mg
The three types of symbiosis are ___ and ___
Answers
Answer:
mutualism,commensalism and parasitism
Answer:
mutualism, commensalism, and parasitism
1. Which best represents a compound?
Answers
Answer:
D
Explanation:
The one that best represents a compound is answer "D" because you compounds are chemically bonded and are always together.
A cat runs across a road that
is 9 meters (m) wide. It
covered this distance in 3
seconds (s). What is the
speed of the cat?
Answers
An electric current is passed through a sample of water, causing the
sample to break down into oxygen and hydrogen. Given this information,
what is the correct classification of water?
Answers
Answer:
A compound
Explanation:
The water is best classified as a compound. When a substance is broken down into elemental composition or units, they are said to be a compound.
An element is a distinct substance that cannot be split up into simpler substances. Compound are substances composed of two or more kinds of atoms joined together in a definite grouping. The properties of compounds are distinct and different from those of the individual elements that are combined in its make - up. So, the water when broken down to elements is a compound.Which air is driest? Air Temp 30F Dew-point 29F, Air Temp 77F Dew-point 19F, Air Temp 66F Dew-point 60F, or Air Temp 50F Dew-point 36F
Answers
Answer:
Air Temp 77F Dew-point 19F
Explanation:
Quiz
The dew point can be described as the temperature required by the air to be cooled. The driest air will have a higher dew point, therefore, at an air temperature of 66°F and a dew point of 60°F. Therefore, option (C) is correct.
What is dew point?The dew point can be defined as the temperature at which air should be cooled to become saturated with water vapor assuming constant air pressure and water content.
Moisture capacity will decrease below the dew point. Airborne water vapor will condense to form liquid water or dew. Dew develops on the surface and occurs through contact with a cooler surface.
The dew point is called the frost point when the temperature is below the freezing point because frost is produced by deposition rather than a condensation of water.
The humidity also impacts the dew point. The dew point increases when there is higher moisture in the atmosphere. Therefore, the higher dew point refers to less humid air or drier.
To learn more about dew point, here:
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A man walks 20 meters in 10 seconds. What is the speed? *
Answers
Answer: 2m/s.
Explanation: To find a speed/rate, you use the equation d = r*t. We switch around this equation to get r = d/t. Then, we plug in the numbers. r = 20 meters/10 seconds. Thus, the rate/speed is 2 meters/second (2m/s).
A man walks 20 meters in 10 seconds the speed is 2 meters per second (m/s).
What is the speed?Speed is something to measure the intensity of anything like any object which is moving from one place to another place and can be calculated by dividing the traveled distance by the time taken by the object.
To calculate the speed of man the given values are distance and time 20 meters in 10 seconds respectively.
speed = distance / time
substituting the value in equation,
speed = 20/10
speed = 2 meter per second (m/s)
Therefore, a man walks 20 meters in 10 seconds the speed is 2 meters per second (m/s).
Learn more about speed, here:
https://brainly.com/question/7359669
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What is the wavelength of a light wave that has a frequency of 4.42 x 10^14 Hz?
Answers
Answer:4.42×10
14
x
Explanation:
Explain what makes a cirrus cloud.
Answers
Answer:
the answer is below
Explanation:
Cirrus clouds form from the ascent of dry air, making the small quantity of water vapour in the air undergo deposition into ice (to change from a gas directly into a solid). Cirrus is made up completely of ice crystals, which provides their white colour and form in a wide range of shapes and sizes.