Answer:
They are named as such because the fuel is ignited in order to do work inside the engine. ... The same fuel and air mixture is then emitted as exhaust. This can be done using a piston (called a reciprocating engine), or with a turbine.
50 pints (pt) is how many gallons (gal)
50 pints is equal to 6.25 gallons.
in order to convert pints to gallons, we need a conversion factor. The relationship between pints and gallons is 1 pt = 0.125 gal. The number of gallons equivalent to 50 pints are:
[tex]50pt \times \frac{0.125gal}{1pt} = 6.25 gal[/tex]
50 pints is equal to 6.25 gallons.
You can learn more about unit conversions here: brainly.com/question/19420601
please help me with my question
Answer:
D
Explanation:
17^0 has extra electon
Is every mixture also a solution? Is every solution also a mixture? Explain.
Answer:
Not all mixtures are solutions. A solution is a specific term that describes an even or homogeneous mixture of a solute, the substance being mixed, in a solvent, the substance that is in a greater amount in which the solute dissolves. All solutions are mixtures because it is two or more substances mixed together.
What molecules does a functioning human body get from food and air in its cells.?
total of 3 pts
Answer:
(glucose and amino acids) and molecules from air (oxygen) in its cells.
Explanation:
The temperature of hot coffee drops upon addition of some cold milk. Is this a chemical change or a physical change
Answer:chemical
Explanation:
Answer: My opinion is that its a physical change
Explanation:
you can always add more coffee to make it hot
What is the difference between criminology and forensic science?
Criminology analyzes how crime affects the community or society as a whole, while forensic science analyzes individual crimes and evidence
O Criminology is an applied Science, while forensic science is an academic science
O Criminologists work closely with law enforcement, while forensic scientists work with academic institutions
o Criminology is a type of forensic science
Answer:
pick the second one I've done that test
Answer:
Criminology analyzes how crime affects the community or society as a whole , while forensic science analyzes individual crimes and evidence.
what will happen to the atoms or sbstance when it freezes
Explanation:
Freezing is the process that causes a substance to change from a liquid to a solid. Freezing occurs when the molecules of a liquid slow down enough that their attractions cause them to arrange themselves into fixed positions as a solid.
Please Help!
Classify the following amine as 1°,2°, 3°, or 4° (primary, secondary, tertiary, quaternary).
Answer:
A. primary
Explanation:
Answer:
C.
Tertiary
Explanation:
How to solve this? Pls help!!
100g of radioactive mass has a half life of 5 days. Calculate the mass decayed off after 15 days
Answer:
12.5 gm
Explanation:
15 days is three half lives
100 * (1/2)^3 = 12.5 grams
According to Newton's first law of physics, what will a bowling ball do as it rolls down the bowling alley?
O A.
accelerate rapidly
slow down considerably
OB.
Ос.
continue at a constant speed
OD
go slow at first then speed up
continue at a constant speed)
The bowling ball will continue at a constant speed. In the case of a bowling ball rolling down a bowling alley, assuming there is no friction or other forces at play, the correct answer is: C.
According to Newton's first law of physics, also known as the law of inertia, an object will continue its current state of motion unless acted upon by an external force. If the initial motion of the ball is a roll with no external forces affecting it, it will maintain that rolling motion without accelerating, slowing down, or changing its direction. This is due to its inertia, a property of matter described by Newton's first law, which resists changes in motion unless compelled by an external force. Hence option C is correct.
To know more about Newton's first law, here
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What is the basic unit of all matter? O A. neutron O B. atom KDC. electron OD proton NUNE nucleus Reset Next
Answer:
Atom
Explanation:
atom: The basic unit of matter; the smallest unit of an element, having all the characteristics of that element; consists of negatively-charged electrons and a positively-charged center called a nucleus.
If you go to school for 180 days each school and each day is 7 hours long, how many hours are spent in school in one school year?
Answer:
1260 hours.
Explanation:
Assuming you meant for 180 days each year, it should come out to be the answer I got. :)
180 days × 7 hours per day = 1,260 hours per year
Which state of matter represented by the particles
Answer:
A solid
the internolecular forces are packed and leave no space behind
Which oh these statements describes a chemical property?
A. Iron melts at 1538 C.
B. Iron is attracted to a magnet.
C. Iron is a solid at room temperature.
D. Iron rusts when exposed to air.
Iron rusts when exposed to air → chemical property
Answer:Iron rusts when exposed to air.
Explanation:Which oh these statements describes a chemical property?
A. Iron melts at 1538 C.
B. Iron is attracted to a magnet.
C. Iron is a solid at room temperature.
D. Iron rusts when exposed to air.
The fundamental SI unit of length is meter.However we often deal with larger or smaller length or distances for which multiples or fractions of the fundamental unit are more useful. For each of the following situations suggest what fraction or multiple of the meter might be the most appropriate measurement.
The suggest units for each case are, respectively:
a) The distance between Chicago and Saint Louis - Kilometer.
b) The size of your bedroom - Meter.
c) The dimensions of this textbook - Centimeter.
d) The thickness of a hair - Micrometer.
Reminder - Question is incomplete, the complete statement is described below:
"The fundamental SI unit of length is meter. However, we often deal with larger or smaller length or distances for which multiplies or fractions of the fundamental units are more useful. For each of the following situations, suggest what fraction or multiple of the meter might be the most appropriate measurement:
a) The distance between Chicago and Saint Louis.
b) The size of your bedroom.
c) The dimensions of this textbook.
d) The thickness of a hair."
We can determine if a Unit is either a Multiple or a Fraction by using the following formula:
[tex]\frac{Q_{u}}{Q_{r}} = 10^{n}[/tex] (1)
Where:
[tex]Q_{u}[/tex] - Used unit, in meters.
[tex]Q_{r}[/tex] - Reference unit, in meters.
[tex]n[/tex] - Unit-to-unit factor, no unit.
A Measure has a Multiple of the Fundamental Unit if and only if [tex]n> 0[/tex], and it is a Fraction of the Fundamental Unit if and only if [tex]n < 0[/tex].
Now we proceed to analyze each case:
a) The distance between Chicago and Saint Louis - The Kilometer is the most common unit to measure Distance between Cities. A Kilometer has a Unit-to-unit factor of 3, representing a Multiple of the Meter.
b) The size of your bedroom - The Meter is the most common unit for Housing and Buildings. A Meter has a Unit-to-unit factor of 0, representing the Fundamental Unit itself.
c) The dimensions of this textbook - The Centimeter is the most common unit for dimensions of Books. A Centimeter has a Unit-to-unit factor of -2, representing a Fraction of the Meter.
d) The thickness of a hair - The Micrometer is the most common unit for the Thickness of a Hair. A Micrometer has a Unit-to-unit factor of -6, representing a Fraction of the Meter.
Then, the suggest units for each case are, respectively:
a) The distance between Chicago and Saint Louis - Kilometer.
b) The size of your bedroom - Meter.
c) The dimensions of this textbook - Centimeter.
d) The thickness of a hair - Micrometer.
Please see this question related to Length Units: https://brainly.com/question/17575641
Explain the process of obtaining Crystals of sugar from hot super saturated sugar solution
Answer:
A supersaturated solution is unstable—it contains more solute (in this case, sugar) than can stay in solution—so as the temperature decreases, the sugar comes out of the solution, forming crystals. The lower the temperature, the more molecules join the sugar crystals, and that is how rock candy is created.
Answer:
A supersaturated solution is unstable—it contains more solute (in this case, sugar) than can stay in solution—so as the temperature decreases, the sugar comes out of the solution, forming crystals. The lower the temperature, the more molecules join the sugar crystals, and that is how rock candy is created.
Calculate the mass of a solid metal cylinder with a density of 2.6 g/cm", a
diameter of 1.8 cm, and a length of 4 cm.
Answer:
V= π ×r² × h
V = 3.14 × (0.9)² × 4
V = 3.14 × 0.81 × 4
V = 10.1736
Mass = Volume × density
M = 10.1736 × 2.6
M = 26.45136 g
How to separate thumb tacks and plastic beads?
How to separate color components of a leaf?
Explanation:
Add ethanol ( or whichever you choose) into the mixture.
Use a filter to separate the salt from mix.
Evaporate the ethanol/petroleum spirit -sugar mix to get the sugar by itself.
Done!
Answer: 1) a) Use a magnet, or b) add to water abd scoop off the floating plastic beads
2) Grind the leaf and solubilize what you can in water, then use filter paper as a chromatograph to separate the colors.
Explanation:
1) Look for any property between the two substances that has a large enough difference to provide an avenue for separation. Density is good, particle size also can be used, solubility, and magnetic properties, among others.
2) https://www.britannica.com/science/paper-chromatography
1. Is each of the following statements true or false? Correct any that are false.
a. A mole of one substance has the same number of atoms as a mole of any other substance
b. The theoretical yield for a reaction is based on the balanced chemical equation
c. A limiting reactant problem is being stated when the available quantity of one of the reactants is given in moles
d. The empirical and molecular formulas of a compound are always different.
a liquid that occupies a volume of 0.820 L and has a mass of 2.56 kg
what is the density of this liquid in kg/L
Answer:
3121.95 kilogram/cubic meter
Explanation:
I used an online calculator
Hope I helped!
what is the dependent variable ?
a
b
c
????
help me lol
Answer:b and c can both be dependent variables, but im going to say that its b
Explanation:
Scientific notation 8.0 x 105 -9.2 x 105
-1.2x10-5
-1.2 x1010
1.2 x105
-1.2 x105
The choose 4.
[tex]8.0 \times {10}^{5} - 9.2 \times {10}^{5} = - 1.2 \times {10}^{5} [/tex]
I hope I helped you^_^
What is the chemical word equation for this?
Copper oxide reacts with carbon to form copper and carbon dioxide?
Answer:
CUCO3_ CuO + CO2
Explanation:
exchange reaction occur when two soluble salts are mixed and immediately form an insoluble salt
10 To become positively charged, an atom must: A Galn a proton B Lose a proton C С. Galn an electron D Lose an electron }
Answer:
D: lose an electron
Explanation:
when an atom loses an electron it's positively charged and when it gain an electron it is negatively charged
A hot sun warms the surface of a lake on a calm day. What will happen to the cold water at the bottom of the lake?
A: The cold water at the bottom will rise up and mix with the warm water at the top.
B: The warm water at the top will sink down and mix with the cold water at the bottom.
C: The cold water will remain at the bottom and won't mix very much with the warm water at the top.
D: Both A and B are true.
Answer:
C:the cold water will remain at the bottom and won't mix very much with the warm water at the top because warm and cold water don't mix
Answer:
the answer is is the warm water at the top will sink down and mix with the cold water at the bottom
Calcula el %m/m de una solución formada por 20g de soluto en 100g de solución
Ayudaaa plizzz con desarrollo para la prueba para pasar el semestre
Por definición de porcentaje masa en masa, el porcentaje masa/masa de la solución es 20%.
En primer lugar, debes saber que una solución es una mezcla homogénea de dos o mas componentes, donde aquel que se encuentra en mayor proporción se llama solvente y las demás sustancias se denominan solutos, que están disueltas en el disolvente.
La relación que existe entre la cantidad de soluto y la cantidad de disolvente recibe el nombre de concentración.
Una de las unidades de concentración usadas es el porcentaje masa/masa. El porcentaje masa/masa (% m/m) indica la masa de soluto por masa de disolución. En otras palabras, el porcentaje en masa (o en peso) de una disolución es el número de gramos de soluto que hay por cada 100 gramos de disolución. Puede calcularse por la siguiente expresión:
[tex]Porcentaje masa en masa= \frac{masa soluto}{masa solucion}x100[/tex]
En este caso,
masa soluto= 20 gmasa solución= 100 gReemplazando en la definición de porcentaje masa/masa:
[tex]Porcentaje masa en masa= \frac{20 g}{100 g}x100[/tex]
Resolviendo:
Porcentaje masa/masa= 20%
Finalmente, el porcentaje masa/masa de la solución es 20%.
Aprende más con este ejemplo: https://brainly.com/question/19540291?referrer=searchResults
10. A car gets 27 miles per gallon. How many gallons are required to drive from Sunnyvale to
Berkeley, a distance of 52 miles?
About 2 gallons. (I got 1.92592592593)
What type of energy is stored in the nucleus of an atom
Answer:
nuclear energy
Explanation:
this holds the nucleus together
Does anyone have answers of a worksheet called “ Intro to Graphs” Chemquest 2?
Answer:
no
Explanation:
Because I have lost and I dont know where is the worksheet
