help asap ??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????
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Answer:
Option C
Explanation:
Something white solid forms means here is any salt reacted .And it has been reacted with any hydroxide or acid or another salt. And an undissolved solid product formed.which is white.Its totally chemical change
Related Questions
Activity 32 can someone explain how u do this?.
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Answer:
write a question and answer it with the words
Explanation:
Gloria/ the bank/ the car
A: where is Gloria going? To the bank, right?
B: Yes, she's going to the bank. She's going in a car.
1. Imagine doing the same virtual experiment using wood as the bottom material, instead of glass or water. Predict how the light would interact with the wood.
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The wood can't do the same function as done by the water and glass in the same virtual experiment due to its different chemical composition.
The light will not pass through the wood due to its translucent behaviour that prevents light to pass through it as compared to water and glass which are transparent materials and light can easily pass through it.
So using wood as a bottom material instead of glass and water will not perform the same function as perform by water and glass in the same virtual experiment so we can conclude that wood can't perform the same function in the experiment.
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Which of the following molecules contains only single bonds?
(A)CH3CH2COOH
(B) CH3COCH3
(C) HCN
(D)C2H6
(E) CO2
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Answer:
D) C2H6
Explanation:
All the other molecules contain double (or triple) bonds except for C2H6.
Considering qualitative and quantitative observations, qualitative observations uses numbers and symbols.
True or false?
Answers
A can of hairspray is crushed down to half its normal volume. What will
happen to the pressure in the can if temperature does not change? *
O it is reduced by half.
O it doubles.
O It stays the same
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Answer:
pressure doubles
Explanation:
they are inversly preportional
A baseball player hits a ball with 36 N of force. With that force, it causes the ball to accelerate at 120 m/s2. What is the mass of the baseball?
Answers
Answer:
0.3 kg
Explanation:
This can be dealt with using (a simplified version of) Newton's Second Law:
Force = mass x acceleration
We need to re-arrange the formula to get the mass of the ball isolated, on its own side of the equation. So we get:
mass = force/acceleration
So, now we just need to substitute the number we do have to get:
mass = 36/120 = 0.3 kg
Hope I helped! :)
Ill give brainliest if you answer right
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Answer:
I DID NOT SEE U QUESTION PROPELY BRO /SIS
What part of the earth absorbs most of the sun's radiation?answers 1.The ocean. 1.The ground. 1.The clouds. 1.The lakes.
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Answer: the ground
Explanation:
5. What is a habitat?
a) An area of human development
b) A protected area for endangered species
c) The natural home or environment of an animal, plant, or other organism
d) An area where no species live
It's for science
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Answer:
c) The natural home or environment of an animal, plant, or other organism
Explanation:
Please note that in order to post questions in Science, you must post in Science section, but not in History. You are asking a wrong question in the wrong section.
Thank You! Please Mark Brainliest! :)
a habitat is a place for any organism to live in.
a zoo is a habitat, the woods are a habitat, houses are a habitat.
Which statement describes a characteristic of a question that can be answered through scientific inquiry
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the correct one is D
Calcular el valor de la presión osmótica que corresponde a una solución que contiene 2 moles de soluto en un litro de solución a una temperatura de 17° C.
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El valor de la presión osmótica que corresponde a una solución que contiene 2 moles de soluto en un litro de solución a una temperatura de 17°C es 47.56 atmósferas.
La presión osmótica se puede calcular usando la siguiente ecuación:
[tex] \pi = \frac{nRT}{V} [/tex] (1)
En donde:
n: es el número de moles = 2 moles
R: es la constante de los gases = 0.082 L*atm/(K*mol)
T: es la temperatura = 17 °C = 290 K
V: es el volumen = 1 L
Introduciendo lo valores anteriores en la ecuación (1), tenemos:
[tex] \pi = \frac{nRT}{V} = \frac{2 moles*0.082 L*atm/(K*mol)*290 K}{1 L} = 47.56 atm [/tex]
Por lo tanto, la presión osmótica es 47.56 atmósferas.
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Which two elements are in the same group based on their atomic model?
Please help me with this ASAP.
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Answer: 1 and 2
i think
Explanation:
Why are microwaves idea for transmitting satellite communication signals?
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Answer:
Microwaves are best suited because
they have a higher frequency and small wavelength
Satellite communication and Earth observation from space benefit from microwaves that can pass through haze, light rain, snow, clouds, and smoke. Because they can penetrate the atmosphere, microwaves are used. Small wavelength and high frequency is employed for this.
Microwaves are radio waves with short wavelengths and frequencies in the gigahertz (GHz) range. They can send signals over great distances without any data loss thanks to their high frequency. Without producing signal overlap or interference, they may carry a wide range of frequencies.
Electromagnetic radiations include radio waves and microwaves. In communication, both are utilized. Television and radio programs are transmitted by radio waves, but mobile phones and Wi-Fi use microwaves. Radio waves are one of the several alternatives for satellite communication.
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14. A gas in a 400 ml flask exerts pressure of 81.0 kPa at 25.0°C. If the gas
was in a 250 ml container at a pressure of 101 kPa, the temperature would be
a) - 124 °C
b) - 41.2°C
c) 20.0°C
d) 232 °C
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Answer: B would be the correct answer
Explanation: You will need to use P1V1/T1=P2V2/T2
So
P1= 81.0kPa /101 =0.799atm
V1=0.4L
T1=25.0C +273.15K= 298.15K
P2= 101kPa /101 = 1atm
V2=0.25L
T2= ?
T2=P2V2T1/P1V1
(1.0atm)(0.25L)(298.15K)/(0.799atm)(0.4L) =233.22K-273.15=-39.92C
what family is hydrogen in? explain
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Explanation:
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.
Can you guys please help me with this chart PLEASEEE?
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feeling generous today thank you guys so much
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Answer:
16
Explanation:
you can line up the fareinheit and celsius and see that the celsius is 16
Answer:
15 and 290 for the first question, if it drops 30 it will get to be 30 f, -0 c and 273 k
HAve a wonderful day!
Someone pls help me I will make you brain
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Answer:
I would go with the first option. It shows how people having been releasing more and more carbon dioxide into the atmosphere.
Explanation:
Which are proteins that recognize specific proteins on bacteria a.antibodies b.enzymes c.nutrients d.receptors
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Answer:
A
Explanation:
Answer:
A. antibodies
Explanation:
Can liquid methane change phases?
Answers
Answer: Methane is a gas at standard conditions.
Explanation: However, at low temperature and/or high pressures the gas becomes a liquid or a solid.
Answer: yes
Explanation:
a scientist uses 52g of Na2SO4 for a chemical reaction. how many moles of Na atom does the compound contain a) 0.366 b) 0.732 c) 8.422 d)16.845
Answers
Answer:
b). 0.732
Explanation:
52g Na₂SO₄ x 1 mol Na₂SO₄ x 2 mol Na
------------------------- -------------------- = 0.732 mol Na
142.04 g Na₂SO₄ 1 mol Na₂SO₄
Atomic Mass Units
Na₂ = 22.99 x 2 = 45.98
S = 32.06
O₄ = 16 x 4 = 64
Na₂SO₄ = 45.98 + 32.06 + 64 = 142.04
There are 2 moles of Na in 1 mole of Na₂SO₄
The aqueous fluid outside of a cell is known as
fluid.
O interstitial
O intracellular
O semipermeable
O desmotic
Answers
Which option correctly describes the pattern of reactivity and electronegativity in nonmetals?(1 point)
Both reactivity and electronegativity decrease down a group.
Reactivity decreases down a group, and electronegativity increases down a group.
Both reactivity and electronegativity decrease up a group.
Reactivity increases down a group, and electronegativity decreases down a group.
Answers
Answer:A, Both reactivity and electronegativity decrease down a group.
Explanation: As you go down the periodic table they both will decrease
If 84.5 mol of an ideal gas occupies 21.5 L at 305 K, what is the pressure of the gas? pressure: atm
Answers
Answer:
98.367 atm
Explanation:
For this, you must use the equation PV=nRT. Since you are looking for P, rearrange the equation so that P= nRT/V.
Now collect the information you have:
n (mol) = 84.5
R (ideal gas constant to find atm not every case) = .08206
T (temperature) = 305 K (always convert to kelvin)
V (volume in liters) = 21.5
Now Use P= (85.5 mol)×(.08206)×(305 K)/(21.5) to get your answer in atm
What is the least apporaiate hypothesis for Eric to make?
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Answer:
Where's the questions?
Which is smaller 1.44 or 1.2544
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Answer: 1.2544
Explanation:
if you look at the number 1 and 1 are the go to the next number 4 and 2 aren't so 1.44 is bigger while 1.2544 is smaller.
Answer:
1.2544
Explanation:
how many bonding and non bonding domains are on the central atom in NH2-
Answers
1bonding and 3non-bonding
(Refer to the attachment for structure
Drag each label to the correct location.
An element’s position in the periodic table provides information about its atomic structure. Use what you know about atomic structure to complete the table. Refer to the periodic table as needed.
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A strong acid is one that
a Doesn’t easily dissociate into ions when I’m solution
B is very dilute in the solution
C easily dissociates into ions when I’m solution
d is very concentrated in the solution
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Answer:
C. easily dissociates into ions when I’m solution
Explanation:
Strong acids are compounds that completely decompose when dissolved in water and produce the total number of ions.
Please help I am stuck on this question
Answers
i think the answer is nervus cell because they work togtter to form the brain
