Answer:
it is a nice question....my mind tells me that the first is it use me as a good vibes and can use to anything the second i will do my best too absorbe it.
Explanation:
Hope this help...
HOW DO THE FOLLOWING COMPARE IN THE AMOUNT OF ALCOHOL THEY CONTAIN: 12 OZ. BEER(5% ALCOHOL), 12 OZ. WINE COOLER(5% ALCOHOL), 1 1/2 OZ. OF 80 PROOF LIQUOR, 5 OZ. OF WINE(12% ALCOHOL)?
The amount of alcohol contained in each of the listed beverages can be compared as follows; 1/2 oz of 80 proof liquor > 5 oz of wine (12% alcohol) > 12 oz of wine cooler (5%alcohol) = 12 oz of beer (5%alcohol) .
A drink that contains alcohol must be an intoxicating beverage. The extent of intoxication of an alcoholic beverage depends on the amount of alcohol that the beverage contains. There are various types of alcoholic beverages as listed in the question.
The amount of alcohol contained in each of the listed beverages can be compared as follows; 1/2 oz of 80 proof liquor > 5 oz of wine (12% alcohol) > 12 oz of wine cooler (5%alcohol) = 12 oz of beer (5%alcohol) .
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Kingdom:
Domain:
I am made of many cells. My cells have
an organized nucleus, I have two
parents and eat food.
Guess Who?
please help
Answer:
SORRY IM LATE! at least i saw it.
Explanation:
Kingdom is Eucaryota
domain is eucarya
As atoms get smaller,valance electrons are getting closer or farther away?
Answer:
valence electrons get closer but rest of them are remain same
What is an allotrope?
a) The same atom with a different number of neutrons
b) A radioactive substance
c) An alternative form of an element
d) Diamond
which is the correct formula for the compound dinitrogen monoxide?
Answer: Dinitrogen Monoxide ( also called nitrous oxide )
is an inorganic ( not made from living matter) compound with the chemical formula of N2O.
Explanation:
Read above
What is the process that results in the formation of an ion
What are the base units the SI units are based on?
A-10
B-100
C-1,000
D-1
Answer:
A-10
Explanation:
In the SI, designations of multiples and subdivision of any unit may be arrived at by combining with the name of the unit the prefixes deka, hecto, and kilo meaning, respectively, 10, 100, and 1000, and deci, centi, and milli, meaning, respectively, one-tenth, one-hundredth, and one-thousandth.
IM NOT SURE PO
the wind pushes a paper cup along the sand at a beach. the cup has a mass of 0.025 kg and accelerates at a rate of 5 m/s2. how much force is the wind exerting on the cup
To find the force,
⇒ must know the force's formula ⇒ F = MA
M: mass of the objectA: acceleration of the objectLet's consider the information given:
cup has a mass of 0.025kg --> 'M'accelerates at a rate of 5 m/s^2 --> 'A'Let's solve:
[tex]F=MA=0.025kg*5m/s^2=0.125N[/tex]
Thus the force is 0.125N
Answer: 0.125N
Hope that helps!
The ribosomes of plant cells are sites for the synthesis of
(a) ATP (b) nucleic acids (c) sugars (d) proteins
Answer:
Proteins
Explanation:
Their Function Formation Encoded in mRNA into polypeptide chains of amino acids that produces protein
The ribosome of plant cells are sites for the synthesis of proteins. The correct option is (d).
What are ribosomes?Ribosomes are organelles that take part in the synthesis of proteins. The prokaryotic cell's ribosomes are smaller than the eukaryotic cell's ribosomes.
Currently, ribosomal RNA is a component of the cell's ribosome or protein-building machinery. The process of making proteins, or translation, is carried out by ribosomes.
The ribosome, which translates the genetic code generated in mRNA into an amino acid sequence, is universally responsible for protein synthesis. The two ribosomal subunits, small and big, come together to form the full ribosome, which is used to produce proteins.
Therefore, the correct option is (d) proteins.
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Kelli and Jarvis are members of the stage crew for the Variety Show. Between acts, they must quickly move a Baby Grand Piano onto stage. After the curtain closes, they exert a sudden forward force of 524 N to budge the piano from rest and get it up to speed. The 158-kg piano experiences 418 N of friction. a. What is the piano's acceleration during this phase of its motion? b. If Kelli and Jarvis maintain this forward force for 1.44 seconds, then what speed will the piano have?
If Kelli and Jarvis maintain a forward force of 524 N for 1.44 seconds on a 158-kg piano, the acceleration will be 0.671 m/s² and the final velocity will be 0.966 m/s.
Kelli and Jarvis exert a force of 524 N on a 158- kg (m) piano.
The friction force, which opposes this force, is 418 N.
The net force (F) is the difference between both forces.
F = 524 N - 418 N = 106 N
We can calculate the acceleration (a) of the piano using Newton's second law of motion.
What is Newton's second law of motion?Newton's second law of motion states that the acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force and inversely proportional to the mass of the object.
a = F/m = 106 N/158kg = 0.671 m/s²
The piano start from rest (u = 0 m/s) and moves with an acceleration of 0.671 m/s² for 1.44 s.
We can calculate its final velocity (v) using the following kinematic equation.
v = u + a × t
v = 0 m/s + 0.671 m/s² × 1.44 s = 0.966 m/s
If Kelli and Jarvis maintain a forward force of 524 N for 1.44 seconds on a 158-kg piano, the acceleration will be 0.671 m/s² and the final velocity will be 0.966 m/s.
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One group of students is investigating the properties of the bar magnet shown below.
Bar magnet
The students' observations are listed below.
When an iron nail is taken near the North Pole (N) of the bar magnet, it is pulled towards the magnet.
When an iron nail is taken near the South Pole (S) of the bar magnet, it is pulled towards the magnet.
The experiment was repeated by several students using different bar magnets. Based on the investigations, which of these theories would the students most likely propose?
Group of answer choices
magnets attract iron nails
the poles of a magnet attract all materials
iron nails are attracted towards all materials
iron nails have the same properties as magnets
magnets attract everything with metal inside of it
Answer: magnets attract everything with metal inside of it
Explanation:
How much heat is required to warm 50.0 g of ice from -10.0oC to 0.00oC, melt the ice, warm the water from 0.00oC to 100.0oC, boil the water, and heat the steam to
120.0oC ?
a 209,000 J
b 199,000 J
c 1.67 x 106 J
d 152,000 J
The total heat required to convert the ice to steam is 155,000 J.
The given parameters:
Mass of the ice, m = 50 gInitial temperature of the ice, t = -10 ⁰CFinal temperature of the ice, T = 0⁰C, 100⁰C and 120⁰CSpecific heat capacity of water = 4.184 J/g⁰CHeat of fusion of ice, = 333.55 J/gHeat of vaporization, = 2,230 J/gThe heat required to raise the temperature to 0⁰C is calculated as;
[tex]Q = mc\Delta t\\\\Q_1 = 50 \times 4.184 \times (0 - (-10))\\\\Q_1 = 2092 \ J[/tex]
The heat required to melt the ice is calculated as follows;
[tex]Q_2 = mL_f\\\\Q_2 = 50 \times 333.55 \\\\Q_2 = 16,677.5 \ J[/tex]
The heat raise the temperature to 100⁰C is calculated as;
[tex]Q_3 = 50 \times 4.184 \times (100 - 0)\\\\Q_3 = 20,920 \ J[/tex]
The heat required to boil the water is calculated as follows;
[tex]Q_4 = mL_v\\\\Q_4 = 50 \times 2230\\\\4_4 = 111,500 \ J[/tex]
The heat raise the temperature to 120⁰C is calculated as;
[tex]Q_5 = 50 \times 4.184 \times (120 - 100)\\\\Q_5 = 4,184 \ J[/tex]
The total heat required is calculated as follows;
[tex]Q_t = Q_1 + Q_2 + Q_3 + Q_4 + Q _5 \\\\Q_t = 2092 + 16,677.5 + 20,920 + 111,500 + 4,184\\\\Q_t = 155,373.5 \ J\\\\Q_t \approx 155,000 \ J[/tex]
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Sulfur reacts with oxygen to form sulfur dioxide (SO2(g), Delta. Hf = â€"296. 8 kJ/mol) according to the equation below. Upper S (s) plus upper O subscript 2 (g) right arrow upper S upper o subscript 2 (g). What is the enthalpy change for the reaction? Use Delta H r x n equals the sum of delta H f of all the products minus the sum of delta H f of all the reactants. â€"593. 6 kJ â€"296. 8 kJ 296. 8 kJ 593. 6 kJ.
The enthalpy of this reaction is -296. 8 kJ/mol.
The equation of the reaction is;
S(s) + O2(g) -----> SO2(g)
Recall that the enthalpy of the reaction can be obtained from the formula;
ΔHrxn = ΔHf(products) - ΔHf(reactants)
We know that;
ΔHf S(s) = 0 KJ/mol
ΔHf O2(g) = 0 KJ/mol
ΔHf SO2(g) = -296. 8 kJ/mol
Hence;
ΔHrxn = -296. 8 kJ/mol - [0 KJ/mol + 0 KJ/mol]
ΔHrxn = -296. 8 kJ/mol
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How many grams of CO2 should be placed in a 250 mL container and -24°C to produce a pressure of 95K PA?
Answer:
About 0.53 g of carbon dioxide needs to be added.
Explanation:
Recall the ideal gas law:
[tex]\displaystyle PV = n RT[/tex]
To determine the amount of carbon dioxide we need, we need to solve for n:
[tex]\displaystyle n = \frac{PV}{RT}[/tex]
Recall that P, V, and T are in atm, L, and K, respectively. R is the universal gas constant.
Convert all values into the correct units:
Volume:
[tex]\displaystyle 250\text{ mL } \cdot \frac{1 \text{ L}}{1000 \text{ mL}} = 0.25 \text{ L}[/tex]
Temperature:
[tex]\displaystyle \begin{aligned} K & =( ^\circ C) + 273.15 \\ \\ & = (-24) + (273.15) \\ \\ & = 249 \text{ K}\end{aligned}[/tex]
And pressure:
[tex]\displaystyle 95 \text{ kPa} \cdot \frac{1.00 \text{ atm}}{101.3 \text{ kPa}} = 0.94 \text{ atm}[/tex]
Substitute and evaluate:
[tex]\displaystyle\begin{aligned} n & = \frac{\left(0.94 \text{ atm}\right)\left(0.25 \text{ L}\right)}{\left(\dfrac{0.08206 \text{ L-atm}}{\text{mol-K}}\right)\left(249\text{ K}\right)} \\ \\ & = 0.012 \text{ mol CO$_2$}\end{aligned}[/tex]
Convert moles to grams:
[tex]\displaystyle 0.012 \text{ mol CO$_2$} \cdot \frac{44.01 \text{ g CO$_2$}}{1 \text{ mol CO$_2$}} = 0.53 \text{ g CO$_2$}[/tex]
In conclusion, about 0.53 g of carbon dioxide needs to be added.
why do you think polar aprotic solvents increase the rate of an sn2 reaction
What is the Lewis structure for Iodide?
Answer:
In the Lewis structure for IF5 you'll need to put a total of 12 valence electrons on the Iodine atom in order to draw the Lewis structure. Remember that Iodine (I) can hold more than eight valence electrons. For the IF5 Lewis structure, calculate the total number of valence electrons for the IF5 molecule
Explanation:
I be knowing hope this helps
Tell me What is an element?
Answer:
Any substance that cannot be decomposed into simpler substances by ordinary chemical processes.
Another definition:
An element is the simplest pure substance which can neither be split nor built up from other simpler substances by chemical reaction
A wave with a smaller wavelength has _______ energy than one with a larger wavelength.
A wave with a smaller wavelength has UV radiation energy than one with a larger wavelength.
Additional information :- It is harmful rays as a continuous effect on humans can cause skin and eye disorders. ... A large amount of UV rays comes from the sun is absorbed by the ozone layer in the atmosphere. Some other sources of UV rays are black lights, mercury lamps, and tanning lights.Uses of UV Rays
The UV light is found in nature from sunlight and the application of sunlight is present in every field. It is present in both commercial and industrial purposes. Generally, it is used in purifying air, water treatment, skin treatment, indoor gardening, things identifying, and more uses by UV lamps.The UV rays are used in a wide range, ranging from medical therapy to photography.▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬
Which two observations are evidence that a chemical change is happening?
A. A yellow liquid forms as a yellow solid is slowly heated.
I B. Bubbles of gas are released when a solid is combined with a
liquid.
I c. Solid crystals form as the temperature of a liquid is lowered.
D. Light and heat are given off after a spark ignites a substance,
Which part of this chemical reaction is the Brønsted-Lowry base?
BrO + H2CO3 --> HCO3 + BrOH
BrO
HCO3
H2CO3
BrOH
The part of the chemical reaction that is the Brønsted-Lowry base is BrO.
BRONSTED-LOWRY BASE:Bronsted-Lowry definition of a base and acid is as follows:
A base is a substance that accepts a hydrogen ion or proton (H+) An acid is a substance that donates or loses a hydrogen ion or proton (H+).According to this question, the following chemical reaction is given:
BrO + H2CO3 → HCO3 + BrOH
In the above reaction, BrO is the compound that accepts the hydrogen ion (H+) to become BrOH, hence, BrO is the Bronsted-Lowry base.
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how much usable energy is extracted from one glucose molecule
We can extract 3×3 power 3 from glucose molecules
Three shining iron nails Kept unday the following conditions.
a) kept open in attest tube containing А wet cotton.
B )kept in a closed container quick lime
c) About half protein of the nail is kept immrest in sodium chloride solution
questions:-
1) al which of these nails get rusted ? o
2)identify the nail which does not undergo rusting Give reason
3)Suggest a method to prevent corrosion of iron
Answer:
1. the nail which is kept immersed in Sodium Chloride solution
2.
Explanation:
The amount of energy involved when an electron is acquired by a neutral gaseous atom is what?
grade 11 chemistry(GASES) why does does cold soda taste great but warm soda taste flat?
Why does cold soda taste great but warm soda taste flat ?
Answer
When a carbonated drink is at room temperature, it is less fizzy and taste flat. Cool it down and it will taste better because the drink is designed to be drank at a lower temperature for optimal fizz and taste.
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"uses for simple machines" whats a piano that needs to be moved up to a third floor apartment
Answer:
Pulley
Explanation:
You can't the piano up the stairs, you need to something to bring it up
Which tool would give the most precise measurement of 15 milliliters of water
A graduated cylinder
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Andrea is making a solution of sweet tea, with 20 grams of sugar dissolved in 180
grams of water. Determine the mass percentage of sugar in the sweet tea.
The mass percentage of sugar in the sweet tea is 10%
From the question,
We are to determine the mass percentage of sugar in the sweet tea
[tex]Mass\ percentage\ of\ sugar\ in\ the\ sweet\ tea = \frac{Mass\ of\ sugar\ in\ the\ solution}{Mass\ of\ the\ solution} \times 100\%[/tex]
Mass of sugar in the solution = 20 g
Mass of the solution = 20g + 180g = 200g
[tex]Mass\ percentage\ of\ sugar\ in\ the\ sweet\ tea = \frac{20}{200} \times 100\%[/tex]
[tex]Mass\ percentage\ of\ sugar\ in\ the\ sweet\ tea = \frac{20}{2} \%[/tex]
∴ Mass percentage of sugar in the sweet tea = 10%
Hence, the mass percentage of sugar in the sweet tea is 10%
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Using the periodic table, choose the more reactive nonmetal.
Br or As
Br and As:
Bromine is more reactive as reactivity increases on moving from left to right in p-block
How much energy is needed to convert 15.0 g of ice at -5.0 oC into water at 50.0 oC?
Using thermodynamics
[tex]\\ \sf\longmapsto Q=mc∆T[/tex]
[tex]\\ \sf\longmapsto Q=0.015(328)(4184)[/tex]
[tex]\\ \sf\longmapsto Q=20585.28J[/tex]
100 ml of nitrogen collected at 27 degree celcius cooled to -73 degree celcius at same pressure.calculate the contraction in volume.
Explanation:
P1. V1/T1 = P2. V2/T2
Apply this
since here, P1 = P2
100 ml / 300 = V2/ 200
==> 100*200/300 = V2
===> V2 = 66.66 ml