Answer:
Neutralization reaction
Explanation:
It is a reaction between an acid and a base
WIll give brainliest! : In the following Punnett square, what is the phenotypic percentages of the offspring? From dwarfism slideshow - length of legs.
Answer:
75% will have long legs and 25% will have short legs
Explanation:
A projectile is projected with an initial velocity of 40 m/s at a 45o angle to the horizontal. , calculate the total time travelled.
Answer:
5.77 s
Explanation:
From the question,
The total time travelled by the projectile = Time of flight (T)
T = 2usinθ/g............ Equation 1
Where T = Time of Flight of the projectile, u = Initial velocity, θ = Angle of projection to the horizontal, g = acceleration due to gravity
Given: u = 40 m/s, θ = 45°
Constant: g = 9.8 m/s²
Substitute these values into equation 1
T = 2(40)sin(45°)/9.8
T = 80sin(45°)/9.8
T = 80×0.7071/9.8
T = 5.77 s
In an effort to sanitize his water, Beethoven knows that bromine can be used to purify water. If Beethoven has 2.12 x 1022 formula units of aluminum bromide are reacted with excess chlorine gas, how many milliliters of liquid bromine (density = 3.12 g/mL) are formed?
Answer:
2.7 mL
Explanation:
The equation of the reaction is;
2AlBr3 + 3Cl2 -----> 2AlCl3 + 3Br2
Number of moles in 2.12 x 1022 formula units of aluminum bromide
1 mole of AlBr3 = 6.02 * 10^23 formula units
x moles = 2.12 x 1022 formula units
x = 2.12 x 1022 formula units * 1 mole/ 6.02 * 10^23 formula units
x = 0.0352 moles of AlBr3
According to the reaction equation;
2 moles of AlBr3 produces 3 moles of Br2
0.0352 moles of AlBr3 produces 0.0352 moles * 3 moles /2 moles
= 0.0528 moles of Br2
Mass of Br2 produced = 0.0528 moles of Br2 * 159.808 g/mol
Mass of Br2 produced = 8.44g
But density = mass/volume
volume = mass/density
volume of Br2 = 8.44 g/ 3.12 g/mL
volume of Br2 = 2.7 mL
For her science project, Suzanne made an animal cell using a rectangular
shoe box, pipe cleaners, and construction paper. One comment that the
teacher made was that Suzanne should not have used a shoe box. Why did
the teacher make this comment? *
Answer:
Animal cells are more round and do not have a rigid cell wall.
Explanation:
Using the human species as an example, explain why physical appearance or morphology is NOT always useful for identifying organisms belonging to the same species.
Answer:
Get SNS
Explanation:
El mercurio ha sido utilizado como elemento para medir la temperatura porque Es una mezcla. Al aumentar la temperatura se dilata con facilidad. Es un buen conductor del calor. Es un buen conductor de la electricidad.
Answer:
La respuesta correcta es: Al aumentar la temperatura se dilata con facilidad
Explanation:
El mercurio (Hg) es un elemento metálico que a temperatura ambiente es un líquido. Tiene la propiedad de dilatarse con facilidad al aumentar la temperatura, propiedad que ha sido utilizada en los termómetros de mercurio. En estos termómetros, el mercurio está dentro de un tubo de vidrio graduado con un bulbo para transmitir el calor. Al estar en contacto con un cuerpo más caliente (a mayor temperatura), el mercurio del interior del termómetro se dilata (expande su volumen) y asciende por el tubo indicando la temperatura correspondiente, graduada en el vidrio.
PLEASE HELP ME ASAPPPPPPPP!!!!!!
Answer:
I think C But I can't really see it well
What does the little 2 in 2CO2 mean?
Answer:
it means 2 oxygen atoms in the molecule
Explanation:
The temperature of 200 mL of gas originally at STP is changed to –25o C at constant volume. Calculate the final pressure of the gas in mmHg.
Answer:
691.6 mmHg
Explanation:
At standard temperature and pressure, temperature of a system = 273K, and pressure= 1atm
T1= 273.15K
P1= 1atm
T2= (–25°C +273.15 )= 248.15K
From Gay-Lussac's law which expressed that at constant volume, pressure of a particular mass of gas is directly proportional to temperature . It can be expressed as
P1 / T1 = P2 / T2
Where P1= initial pressure
T2= final temperature
T1= initial temperature
P2= final pressure
Making P2 subject of the formula
P2= (P1 × T2)/ P1
Substitute the values we have
P2= (1 atm × 248.15K)/273.15
P2= 0.91 atm
But
1atm= 760 mmHg
0.91 atm= X mmHg
If we cross multiply we have
X mmHg= (760× 0.91)/1
= 691.6 mmHg
Hence, the final pressure of the gas in mmHg is 691.6 mmHg
An organism whose cell contains a nucleus.
Answer:
Eukaryotes
Explanation:
A scientist is designing a device that will kill harmful cells in the human body using high-energy waves. Which type of wave would be most effective
А
X-rays would be the best choice because they have a long wavelength and a low frequency
accomplishing this goal?
B
Radio waves would be the best choice because they have a long wavelength and a low frequency
Gamma rays would be the best choice because they have a short wavelength and a high frequency
D
Infrared waves would be the best choice because they have a short wavelength and a high frequency
C2021 Illuminate Education Inc.
Tin
Type here to search
O
BH
Answer:
gamma rays
Explanation:
gamma Ray's have the highest frequency
plz help i’m gonna cry i’m in class rn
Answer:
if ur gonna cry then just dont cry its simple logic guyss!!!!!!!!!!!!
Explanation:
What is the mass of 1.50 mole of (NH4)2CO3?
Answer:
144.12873
Explanation:
Hope this helps you
-----------------------------------------------------------------------------------------------------------------
回答：
144.12873
説明：
これがお役に立てば幸いです
Answer:
96gm/mole
Explanation:
(NH 4)2CO 3 =2×18+12+3×16=96gm/mole
what element has 5 protons, 7 electrons, and 6 neutrons
Answer: Boron
Explanation: lol
Answer:
Boron. (What kind of name is that?????????????)
Explanation:
a bowling ball and a baseball both roll across your foot at the same speed.the bowling ball hurts much more
Answer:
It hurts more because of the greater mass of the bowling ball.
Explanation:
Gravity exerts a greater force on the bowling ball because of its mass, pushing it harder into your leg while it's rolling over it.
how many moles of water is 5.02 x 10 18 molecules of water
Answer:
8.334×10^-6 moles
Explanation:
a mole is 6.023×10^23
5.02×10^18 ÷ 6.023×10^23=8.33×10^-6
so there are 8.33×10^-6 moles of water in 5.02x10^18 molecules of water
The number of moles of water in which 5.02 × 10¹⁸ molecules of water is present is 8.33 × 10⁻⁶.
What is moles?
Moles is a unit which is used to tells about the quantity of any substance, in one moles of any substance 6.023 × 10²³ number of atoms of that substances are present.
In 1 mole of water = 6.023 × 10²³ number of molecules of water is present
So, number of 5.02 × 10¹⁸ molecules of water present in how many moles will be calculated as:
Required moles = 5.02 × 10¹⁸ / 6.023 × 10²³ = 8.33 × 10⁻⁶
Hence, required moles is 8.33 × 10⁻⁶.
To know more about moles, visit the below link:
https://brainly.com/question/15356425
Plate Tectonics Independent Practice,
Label The Diagram With The Correct Information.
Answer:
1st Diagram (at the left) → Mid-Atlantic Ridge
2nd Diagram (at the right) → Andes Mountains
3rd Diagram (below) → San Andreas Fault
Explanation:
I have been able to label the diagram with the correct information.
The 1st diagram at the left is the Mid-Atlantic Ridge. This is a divergent plate boundary that is found at the floor of the Atlantic Ocean. It is also seen as part of the mountain range in the world. The Mid-Atlantic Ridge also includes a deep rift valley. This rift valley runs along the axis of the ridge. This is along nearly its entire length.
The Andes Mountains is found along the Pacific Ring of Fire. It is seen in a Mesozoic–Tertiary orogenic belt of mountains. The Andes rises due to the compression of the western rim of the South American Plate. It is a result of tectonic plate processes.
San Andreas Fault is known to form the tectonic boundary which exists between the Pacific Plate and the North American Plate. The motion of the fault is right-lateral strike-slip. It divides into three segments.
neeeeeeeed help with science
Answer: should be 28 degrees
Explanation:
QUESTIONS
40. Because stimulants
will be compromised.
your ability to use proper judgment on the road
A. increase your heart rate
B. overload your nervous system
C. slow down your bodily functions
D. usually cause hallucinations
Answer:
B.
Explanation:
A solid substance turns directly into a gas. Which term describes this change?
A)deposition
B)evaporation
C)melting
D)sublimation
Given what we know, we can confirm that the correct term to describe the change from a solid into a gas is sublimation.
What is sublimation?Sublimation is the change from a solid-state into a gas state.Most of the time one will first observe the change into a liquid state, however, with sublimation, the change is directly from the solid into the gas, such is the case with dry ice. Dry Ice is frozen carbon dioxide, as it thaws, it changes directly into its gaseous state.Therefore, we can confirm that sublimation describes the process by which an element passes from a solid directly into a gas, without first becoming a liquid.
To learn more about sublimation visit:
https://brainly.com/question/10936758?referrer=searchResults
Answer:
D. sublimation
Explanation:
Correct on Edge 2022!!!
Good luck everyone, you got this! Have a great day!
Question :What's oxidation?
Answer:
The process or result of oxidizing or being oxidized.(Rust)
Explanation:
Pluto
Calculate the pOH and the pH of a 5.0 x 10-2 M solution of NaOH.
Answer:
pOH = 1.3, pH = 12.7
Explanation:
Since NaOH is a strong base, it will completely ionize; further, since it completely ionizes, our hydroxide concentration (a product of the ionization) will be the same as the given concentration of NaOH.
NaOH -> Na⁺ + OH⁻, [OH⁻] = 5.0 x 10^-2 M
pOH is the negative log of the hydroxide concentration, so plug our hydroxide concentration in:
pOH = -log[OH⁻] = -log[5.0 x 10^-2 M] = 1.3
Since pH + pOH = 14, we can plug in pOH and solve for pH:
pH + 1.3 = 14
pH = 14 - 1.3 = 12.7
Thus, our pOH = 1.3 and pH = 12.7.
Of the following elements ____ can form a rare +4 ion *
a) Aluminum
b) Lead
c) Krypton
d) Uranium
Answer:
d is the answer.........
If a sample of oxygen gas has a pressure of 810 torr at 298 K, what will be its
pressure if its temperature is raised to 330K?
Answer:
The pressure is = 897 torr
Explanation:
What is the mass of 5.6 moles of Iron (III) Oxide?
Answer:
312.731
Explanation:
it had a long answer but im sure ur teacher wanted u to round it
hope this helps!
~goldfishareswag/brianna
:)
When the volume and concentration of a base that completely neutralizes an acid is known, you can determine the concentration of the acid due to at the point of neutralization, the number of moles of acid equals the number of moles of base.
why does this happen? (btw this is describing titration) the criteria for the answer is
"Try to answer why the results occurred. If you are in chemistry, what is happening at the molecular level with bonding, electrons, etc. " WILL MARK BRAINLIEST!!!!
Answer:
30
Explanation:
Convert 1.65 moles of nitrogen gas at STP to liters.
What is the coefficient of the scientific notation answer ? What is the exponent of the scientific notation answer ? How many significant figures are there in the answer ? What is the right most significant figure in the answer ?
Answer:
See explanation
Explanation:
We know that 1 mole of a gas occupies 22.4 L
Hence, 1.65 moles of nitrogen gas occupies 1.65 moles * 22.4 L/1 mole = 36.96 L or 3.696 * 10^1 L = 3.70 * 10^1 L
The exponent of the scientific notation answer = 1
The significant figures there are in the answer = 4
The right most significant figure in the answer = 2
What kind of rock can be broken
down to make sand?
Answer:
sandstone
Explanation:
Sandstone is a mineral rock made of small particles.
How many moles of HCl are present in 1.30 L of a 0.50 M solution
0.50 moles
3.00 moles
O 0.65 moles
0 1.50 moles
Answer:
0.65moles of HCl was produced
What properties can be used to identify puree substances?
Explanation:
1 it easily won't break down using any chemical
2 it is difficult to extract it using chemical process
mark me please
