Answers
Answer:
D Transportation it makes sence if it doesn't just re read it
Related Questions
Which group of elements in the periodic table contains the noble gases?"
O Group 1
O Group 13
O Group 10
O Group 18
Answers
Answer:
its the 4th one (group 18 )
A tank containing oxygen, carbon dioxide, and nitrogen gases has a total pressure of 6.7
atm. If the O2 has a pressure of 3.0 atm and the carbon dioxide has a pressure of 1.2
what is the partial pressure of the nitrogen gas?
Answers
Answer:
P(N₂) = 2.5 atm
Explanation:
Given data:
Total pressure of gasses = 6.7 atm
Partial pressure of O₂ = 3.0 atm
Partial pressure of CO₂ = 1.2 atm
Partial pressure of N₂ = ?
Solution;
According to Dalton law of partial pressure,
The total pressure inside container is equal to the sum of partial pressures of individual gases present in container.
Mathematical expression:
P(total) = P₁ + P₂ + P₃+ ............+Pₙ
Now we will solve this problem by using this law.
P(total) = P(O₂) + P(CO₂) + P(N₂)
6.7 atm = 3.0 atm + 1.2 atm + P(N₂)
6.7 atm = 4.2 atm + P(N₂)
P(N₂) = 6.7 atm - 4.2 atm
P(N₂) = 2.5 atm
What is the speed of an object that covers 10 miles in 5 hours?
a. 5 mph
b. 15 mph
c. 2 mph
d. 50 mph
Answers
Answer:
2 miles per hour.
Explanation:
10/5=2
To solve this we must be knowing each and every concept related to speed and its calculations. Therefore, the correct option is option C.
What is speed?Speed may be defined as the distance traveled by an item in the amount of time it requires to travel that distance. In other words, it measures how rapidly an item travels but does not provide direction.
The Scientific unit system is most typically used to express speed. Speed is determined in metres per second, or m/s, since distance is recorded in metres while time is recorded in seconds.
Mathematically,
speed= distance/ time
distance= 10 miles
time= 5 hours
substituting all the given values in the above equation, we get
speed=10/5
on calculations, we get
speed = 2 mph
Therefore, the correct option is option C.
To learn more about speed, here:
https://brainly.com/question/13263542
#SPJ2
Anyone know the answer
Answers
Answer:
a and d
Explanation:
a bromine and the calcium atom loses two elections
A 10g sample of Fe reacts with O to form 18.2g of FeO. How many grams of O reacted?
Answers
Answer:
Mass of O = 8.2 gram
Explanation:
Given:
Mass of Fe = 10 g
Total volume = 18.2 g
Find:
Mass of O
Computation:
Using Conservation of total mass
Total volume = Mass of O + Mass of Fe
18.2 = Mass of O + 10
Mass of O = 8.2 gram
Question 14
An element's periodic table identity is defined by its number of
А.
neutrons.
B
isotopes.
С C
electrons.
protons
Answers
Answer:
c
Explanation:
protons are the atomic number which define an element
What is the affected variable in an experiment. A:independent. B:dependent. C:control
Answers
In a controlled experiment, an independent variable (the cause) is systematically manipulated and the dependent variable (the effect) is measured; any extraneous variables are controlled. The researcher can operationalize (i.e. define) the variables being studied so they can be objectivity measured.
IamSugarBee
Which element could provide one atom to make an ionic bond with calcium
Answers
Write one paragraph explaining what you have learned so far about Kinetic and Potential Energy.
(will give brainliest)
Answers
Answer: Energy stored in an object due to its position is Potential Energy. The energy that a moving object has due to its motion is Kinetic Energy. All forms of kinetic energy are the result of a previous state of potential energy. For example, the stored chemical potential energy of a battery converts to electrical kinetic energy to transport electricity to a light bulb, which radiates thermal kinetic energy. Potential energy is the energy that is stored in an object due to its position relative to some zero position. An object possesses gravitational potential energy if it is positioned at a height above (or below) the zero height.
Sodium metal and chlorine gas are combined in a reaction to produce sodium chloride also known as table salt. What are the reactants?
Group of answer choices
Sodium metal only
Chlorine gas only
Sodium Chloride (salt)
Chlorine gas and Sodium Chloride (salt)
Sodium metal and Chlorine gas
Answers
Answer: sodium metal and chlorine gas
Explanation:
I need help......................
Answers
The answer is -1 as they gain 1 electron
What is the name of the following chemical compound?
Answers
Answer: Dinitrogen pentoxide
Explanation:
Answer:
Dinitrogen Pentoxide
Explanation:
if the mass of 3 black beans it's 0.7 what's the mass of one bean?
Answers
Answer:0.233333333
Explanation: Let me be!
Answer:
yea what that guy said is correct I'm pretty sure
Which of the following describes redox in displacement plating?
Answers
Do bacteria help people?? This is science but there is no tab
Answers
Answer:
Yes
Explanation:
Some bacteria is good for you like the bacteria in your digestive system, which helps with breaking down food and keeping you healthy
How many moles of Mg(OH)2 will react with 2.5 mol HCI?
Answers
Answer:
1.25mole of Mg(OH)₂
Explanation:
The reaction is between Mg(OH)₂ and HCl, this is a neutralization reaction between an acid and a base.
Mg(OH)₂ + 2HCl → MgCl₂ + 2H₂O
The balanced reaction equation is given above.
2 mole of HCl reacts with 1 mole of Mg(OH)₂
So, 2.5mole of HCl will react with [tex]\frac{2.5}{2}[/tex] = 1.25mole of Mg(OH)₂
The number of moles of Mg(OH)₂ is given as 1.25mol
The world's largest importer of fish products is:
A. Japan
B. China
C. United States
D. Norway
PLEASE GICE ME THE RIGHT ANSWER MY GRADES ARE BADDDD
Answers
Answer:
A. Japan
Explanation:
Answer:
japan xd
Explanation:
Someone please help will mark as brainliest please answer all of the questions
Answers
Answer:
1.The main difference between SPECT and PET scans is the type of radiotracers used. While SPECT scans measure gamma rays, the decay of the radiotracers used with PET scans produce small particles called positrons. ... These react with electrons in the body and when these two particles combine they annihilate each other.
2 .A single photon emission computed tomography (SPECT) scan is an imaging test that shows how blood flows to tissues and organs. It may be used to help diagnose seizures, stroke, stress fractures, infections, and tumors in the spine.
3.Uses for PET scan include checking brain function; diagnosing cancer, heart problems, and brain disorders; examining blood flow to the heart; and determining spread of cancer and response to therapy. The use of PET scans may help doctors more accurately detect the presence and location of cancer cells.
4.Stress-only SPECT protocols resulting in lower dosimetry and less time in the imaging laboratory may be appropriate for many patients. PET perfusion imaging offers indisputably better images that are characterized by higher resolution, better attenuation correction, less scatter, and better contrast
Hope I wasn't too late.
6CO2 + 6H20 --> C6H12O6 + 602
What is the total number of grams of water needed to make 6.2 moles of CoH1206?
79.5 g
402.9
670.2 g
381.2 g
Answers
which two elements make up the main structure of an organic compound?
A. Carbon and oxygen
B. Nitrogen and oxygen
C. Carbon and hydrogen
D. hydrogen and sulfur
Answers
Answer:
b nitrogen&oxygen
Explanation:
i'm built different
What Group would this element be in?
Answers
Answer:
Non-metals because it has 9 electrons meaning it is fluorine
Explanation:
What is the percentage composition of each element in carbon dioxide, CO2? Remember percent composition is based on mass. (Show your calculations for full credit.)
Answers
%C = 27.3%
%O=72.7%
Further explanationProust states the Comparative Law that compounds are formed from elements with the same Mass Comparison, so that compounds have a fixed composition of elements
The empirical formula is the mole ratio of compounds forming elements.
MW CO₂ : 44 g/mol
Ar C = 12 g/mol
Ar O = 16
%C[tex]\tt \dfrac{12}{44}\times 100\%=27.3\%[/tex]
%O[tex]\tt \dfrac{2.16}{44}\times 100\%=72.7\%[/tex]
Name the Ionic Compounds listed below.
1.) Al2O3 =
2.) NaCl=
3.) MgO =
4.) CaCl2=
Answers
Answer:
1. Aluminum oxide
2. Sodium chloride
3. Magnesium oxide
4. Calcium Chloride
Explanation:
Ionic compounds with only 2 elements all end with "ide" Use the full name of the element listed first and the second element with ide. Ex: Chlorine would become chloride.
Answer:
Explanation:
1. Al2O3 = Aluminum Oxide
2. NaCl = Sodium Chloride
3. MgO = Magnesium Oxide
4. CaCl2 = Calcium Chloride
How would a drop in pressure affect a gaseous system at equilibrium?
A. The reaction would slow down, but the number of moles of gas
would not change.
B. The number of moles of gas of reactants and products would
increase.
C. The reaction would shift to favor the side with the least moles of
gas.
D. The reaction would shift to favor the side with the most moles of
gas.
Answers
The reaction would shift to favor the side with the most moles of gas.
A.P.E.X. b/c yk that's why you're here :)
a ball with a mass of 20 kg is accelerating at 4 m/s/s while being thrown . about how much force was used to throw the ball
Answers
Answer:
80 NExplanation:
The force acting on an object given it's mass and acceleration can be found by using the formula
force = mass × acceleration
From the question we have
force = 20 × 4
We have the final answer as
80 NHope this helps you
Answer:
80 n
Hope I helped
I pushed a 2 kg car with an 8 N force. Calculate the acceleration.
Answers
Answer:
4 m/s²Explanation:
The acceleration of an object given it's mass and the force acting on it can be found by using the formula
[tex]a = \frac{f}{m} \\ [/tex]
f is the force
m is the mass
From the question we have
[tex]a = \frac{8}{2} \\ [/tex]
We have the final answer as
4 m/s²Hope this helps you
What type of reaction does each of the following equations represent?
A. Single replacement
B. Double replacement
C. Decomposition
Answers
Answer:
Option C. Decomposition
Explanation:
To know which option is correct, it is important we know what is a single displacement reaction, double displacement reaction and decomposition reaction.
A Single displacement reaction can be defined as a reaction in which a single element is replaced by another element in a compound.
A double displacement reaction is a reaction involving the exchange of ions of two parts of ionic compounds to form two different compounds.
A decomposition reaction is a reaction in which a compound splits into two or more simpler compound or element.
Bearing the above definitions in mind and considering the question given above, we can conclude that the reaction given in the question above is a decomposition reaction since the compound (NH₄OH) splits into two different compound (NH₃ and H₂O)
What type of compound is this?
Answers
Answer:sorry id ont known
Explanation:give m brianlest if you want
A 0.040 kg ball tied to a string moves in a circle that has a radius of 0.700 m. If the ball is accelerating at 43.2 m/s2, what is the tangential velocity of the ball?
Answers
Answer: 30.24 m/s
Explanation:
Got it right on test
Which of the following is a characteristic of covalent compounds?