1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
lara31 [8.8K]
2 years ago
15

(IMAGE ATTACHED)(pls help this is due tonight)​

Chemistry
2 answers:
miv72 [106K]2 years ago
5 0

Answer:

You can see that the line is going up and is curved in a positive direction.

Explanation:

When an object is speeding up, the acceleration is in the same direction as the velocity. Thus, this object has a positive acceleration.

e-lub [12.9K]2 years ago
4 0
Increased acceleration curves upwards. because it is taking less time to travel more distance this means there is acceleration! i hope this answers it
You might be interested in
What expression approximates the volume of O2 consumed, measure at STP, when 55 g of Al reacts completely with excess O2?2 Al(s)
Genrish500 [490]

Answer:

34.28 L ( 1.5*22.4 L)

Explanation:

Calculation of the moles of aluminum as:-

Mass = 55 g

Molar mass of aluminum = 26.981539 g/mol

The formula for the calculation of moles is shown below:

moles = \frac{Mass\ taken}{Molar\ mass}

Thus,

Moles= \frac{55\ g}{26.981539\ g/mol}

Moles= 2.0384\ mol

According to the reaction:-

4Al+3O_2\rightarrow 2Al_2O_3

4 moles of aluminum react with 3 moles of oxygen gas

1 mole of aluminum react with \frac{3}{4} moles of oxygen gas

2.0384 moles of aluminum react with \frac{3}{4}\times 2.0384 moles of oxygen gas

Moles of oxygen gas = 1.5288 moles

At STP,  

Pressure = 1 atm  

Temperature = 273.15 K

Using ideal gas equation as:

PV=nRT

where,

P is the pressure

V is the volume

n is the number of moles

T is the temperature

R is Gas constant having value = 0.0821 L.atm/K.mol

Applying the equation as:

1 atm × V = 1.5288 mol × 0.0821 L.atm/K.mol × 273.15 K

⇒V = 34.28 L ( 1.5*22.4 L)

7 0
3 years ago
Select the correct answer. Which statement is true of a chemical change? A. It involves changes in the molecular structure. B. I
wolverine [178]
I think the answer is something within..
4 0
2 years ago
Read 2 more answers
12 POINTS!!!! Consider the diagram. Which postulate of the kinetic-molecular theory best describes the event in the diagram?
podryga [215]
The separation of molecules. I wouldn't put that if i were you.
8 0
3 years ago
Read 2 more answers
A person tries to heat up her bath water by adding 5.0 l of water at 80c to 60 l of water at 30c. what is the final temperature
Sophie [7]
We can calculate the final temperature from this formula :

when Tf = (V1* T1) +(V2* T2) / (V1+ V2)

when V1 is the first volume of water = 5 L 

and V2 is the second  volume of water = 60 L

and T1 is the first temperature of water in Kelvin = 80 °C +273 = 353 K

and T2 is the second temperature of water in Kelvin =  30°C + 273= 303 K

and Tf is the final temperature of water in Kelvin 

so, by substitution:

Tf = (5 L * 353 K ) + ( 60 L * 303 K) / ( 5 L + 60 L)

     = 1765 + 18180 / 65 L

     = 306 K
     = 306 -273 = 33° C

8 0
2 years ago
On a weather map, which symbol on a line indicates a cold front? A. semicircle B. semicircles and triangles C. full circles D. t
Reil [10]
<span>The symbol on a line that indicates a cold front on a map is a triangle. The point of the triangle will indicate the direction of movement of the cold front.</span>
4 0
2 years ago
Read 2 more answers
Other questions:
  • Which of the following is a starting compound during cellular respiration? Carbon dioxide Glucose Mitochondria Water
    8·2 answers
  • A solution of pH 5 is diluted 100 times. Find the pH of the resulting solution.
    8·2 answers
  • A cubic meter is about the same as the volume occupied by a _____. basketball arena kilogram of water washing machine cup of mil
    15·1 answer
  • Calculate the number of moles of Cl atoms in 3.01×1024 formula units of magnesium chloride, MgCl2.
    12·2 answers
  • For the reaction 2H2O(g)↽−−⇀2H2(g)+O2(g) 2 H 2 O ( g ) ↽ − − ⇀ 2 H 2 ( g ) + O 2 ( g ) the equilibrium concentrations were found
    8·1 answer
  • Jose and Gina are studying balanced and unbalanced forces and are challenged to test their theories. Predict the result when Jos
    6·2 answers
  • Which of the following 0.820 M solutions would have the greatest colligative effect?
    9·1 answer
  • 9. Which of the following concentrations has units of moles of solute per liter of solution?
    12·1 answer
  • Calculate and compare the number of ATP molecules generated between a 24 carbon fatty acid and 4 glucose molecules.
    9·1 answer
  • What mass of carbon dioxide is produced upon complete combustion
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!