Answer:
67108864
Step-by-step explanation:
Simply multiply by -4 until its the 13th number.
.- Sí 159.6 gramos de Fe2O3 liberan 67.2 litros de CO2 ¿cuántos litros de CO2 se liberan si reaccionan 45 gramos de Fe2O3? de acuerdo a la siguiente reacción: Fe2O3 (s) + 3 CO (g) 2 Fe (s) + 3 CO2 (g)
Answer:
45 g de oxido de hierro (III) liberarán 18.9 L de CO₂
Step-by-step explanation:
La reaccion quimica es la siguiente:
Fe₂O₃ (s) + 3CO (g) → 2Fe (s) + 3CO₂ (g)
1 mol de oxido de hierro (III), reacciona con 3 moles de monoxido de carbono para liberar 3 moles de CO₂ y 2 moles de Fe sólido.
Pasamos la masa de F₂O₃ a moles:
159.6 g . 1 mol /159.7g = 1 mol de oxido
Entonces, aplicamos la regla de tres:
1 mol de oxido produce 3 moles de dioxido de carbono, indudablemente eso será lo que formemos de producto, por lo tanto 3 moles de CO₂ estan ocupando 67.2 litros.
Ahora calculamos los nuevos moles:
45g . 1 mol /159.7 g = 0.282 moles
Aplicamos la regla de tres:
Si un mol de oxido produce 3 moles de CO₂
0.282 moles producen (0.82 . 3 ) = 0.845 moles de CO₂
Como tenemos menos moles de gas, el volumen ocupado sera mayor, hacemos la regla de tres:
Si 3 moles de CO₂ ocupan 67.2 litros
0.845 moles ocuparan (0.845 . 67.2/ 3 ) = 18.9 litros
Which of the tables represents a function? (5 points)
Table B
Table C
Table A
Input Output
Table D
Input Output
Input Output
Input Output
5
3
1
2
0
0
4
2
5
2
3
2.
1
2
4
3
4
1
5
3
1
3
4
4
Table o
Table A
Table B
Table D
Answer:
table b
Step-by-step explanation:
functions don't give different outputs for the same input
If y varies directly as x, and y=-4 when x=8, find y when x=3
I believe it would be negative 9 because your subtracting by twelve again. I hope that helped
2 litres of lemonade costs £2.60. Find the cost of 6 litres of lemonade
Answer:
£7.80
Step-by-step explanation:
Since you multiply 2 by 3 to get 6, we are going to multiply 2.6 by 3
2.6 x 3 = 7.8
Thus the cost of 6 litres of lemonade is £7.80
can you answer this please. I need help
Answer:
c
Step-by-step explanation:
can i get brainliest please???
it would be very much appreciated
have a nice day :)
Factor completely: 5x^2-11x+6
help please! :) thanks!!!
Answer:
C
Step-by-step explanation:
Mitochondria is the powerhouse of a cell
Find the domain and range of f(x)=4*(1/2)^x
What is 18% of 700????????????????????????????????????????
Answer:
126
Step-by-step explanation:
the answer is 126 hope that helps
Answer:
126
Step-by-step explanation:
this is the right answer
On a recent trip to Georgia, Todd drove 70 miles after the first hour, 130 miles after the second hour, 200 miles after the third hour, and 250 miles after the fourth hour. Determine if the relationship between the number of miles he drove and the time is proportional.
Answer:
NOT PROPORTIONAL
Step-by-step explanation:
Sorry the image cut off a bit lol, all it cut off what the word proportinal
Anyways, I hope this helped!
What number do I call for 911 again?
Answer:
you call 911
Step-by-step explanation:
i hope you are doing ok
Answer:
9-1-1 I am pretty sure 0///0
Step-by-step explanation:
am I wrong I-
What is the difference between largest and smallest fraction below?
1/5 7/20 3/10
What is the answer for this equation 600 is 4/9 of what number 
Answer:
933.3333333
Step-by-step explanation:
(16/25)-3/2 help me solve
Answer:
-43/50
(decimal) = -0.86
Step-by-step explanation:
Find the LCD which is 50.
16/25 will be multiplied by 2 (because 25 x 2 = 50) so it will then equal 32/50
3/2 will be multiplied by 25 (2 x 25 = 50) = 75/50
subtract them which will give you -43/50
y = 2x – 1
how do you graph this linear equation???
Answer:
You can choose x as any value like x = 7
if x were to equal 7 then
the equation would be y = 2 times 7 - 1
2 times 7 = 14 and 14-1 = 13
y would be 13 ifi x was 7
so you can graph the point 7,13
Step-by-step explanation:
The softball team at your high school is selling pizza to raise money for new uniforms. The amount of money raised by sales varies directly as the number of pizzas sold. When 13 pizzas are sold, $94.25 is raised. How many pizzas must be sold to raise $377?
Answer:
2,733.25 pizzas (or 2,734 if whole number is needed)
Step-by-step explanation:
13 377
94.25 x
13x = 35532.25
x = 2733.25
PLEASE ANSWER FAST NEED RIGHT NOW
Given a polynomial function f(x), describe the effects on the y-intercept, regions where the graph is increasing and decreasing, and the end behavior when the following changes are made. Make sure to account for even and odd functions. When f(x) becomes f(x)-4 When f(x) becomes -f(x+2)
(GIVING BRAINLIEST!!!)
Last night, Roberto spent 90 minutes doing homework, infinity symbol hour reading, and 540 seconds making his lunch for the next day. How many more minutes did Roberto spend doing homework than he did reading and making his lunch?
A) 81 minutes
B) 50 minutes
C) 49 minutes
D) 41 minutes
Answer:
A) 81 minutes
Step-by-step explanation:
Help me please
Hannah receives no commission on her first $60,000 in car sales. For every dollar over $60,000 in sales, she earns 25% commission.
If Hannah makes car sales of $128,000, how much does she makes in commission?
A
$7,000
B
$15,000
C
$17,000
D
$32,000
Complete to get an equivalent fraction:
5/4 = _____/20
Answer:25
Step-by-step explanation:
Simply multiply by five on both the 5 and 4 and you get an equivalent fraction
Answer:
25/20
Step-by-step explanation:
I set up a proportion and to find the how 4 goes to 20, I divided 20/4 to get 5 and then I multiplied 5*5 to get 25.
You can also cross multiply.
Solve the following equation:
1.3(a + 2) + 5.6 = 17.3
Answer:
a=7
Step by step Explanation:
Step 1: Simplify both sides of the equation.
1.3(a+2)+5.6=17.3
(1.3)(a)+(1.3)(2)+5.6=17.3(Distribute)
1.3a+2.6+5.6=17.3
(1.3a)+(2.6+5.6)=17.3(Combine Like Terms)
1.3a+8.2=17.3
1.3a+8.2=17.3
Step 2: Subtract 8.2 from both sides.
1.3a+8.2−8.2=17.3−8.2
1.3a=9.1
Step 3: Divide both sides by 1.3.
1.3a 9.1
1.3 = 1.3
a = 7
HERES ANOTHER ONE PLEASE HELPPP
Answer:
30.
Step-by-step explanation:
you get tot the 180-50=120.
120÷2=60
90-60=30
help!!!!!!!!!!!!!!!!!!!!!!!!!!! im a dummy
your scientific notation will be 2.505 x 10^4
FREE BRAINLIEST!! ill also answer questions that you have posted if you answer correctly!!!! (30pts)
will give brainliest Each exterior angle of a certain regular polygon is 20°, so each interior angle of that polygon must be ______
Answer:
i think it would be 10 degrees
Answer:
160
Step-by-step explanation:
Tell whether the following numbers are prime or composite.
a) 17 _________ b) 54 _________ c) 77_________ d) 23 __________
ANSWER:
l--------------------------------------------------------------------------------------------l
l--------------------------------------------------------------------------------------------l
Answer:
17= Prime number
54= Composite
77=Composite
23=Prime
Hello there!
Prime numbers have 2 factors and composite numbers have 3 or more factors.
17 is prime because it has only 2 factors: 1 and itself.
54 is composite because it has more than 3 factors.
77 is composite because it has more than 3 factors.
23 is prime because it has only 2 factors.
Hope this helps you!
~Just a joyful teen
[tex]SilentNature[/tex]
Use elimination to solve for x and y:
5x + 4y = 23
x - 4y = - 5
O (3, 2)
O (2,3)
0 (7. – 3)
0 (7,3)
Answer:
x=3, y=2
Step-by-step explanation:
375 x228 step by step How to solve
Function or not function?
Answer:
Function I think?
Step-by-step explanation:
42 = y + 15 whats y? y == __
Solution
[tex]y=27[/tex]
Step-by-step explanation:
Subtract [tex]15[/tex] from both sides of the equation:
[tex]42=y+15[/tex]
[tex]42[/tex][tex]-15=y+15[/tex][tex]-15[/tex]
Simplify:
Subtract the numbers:[tex]42-15=y+15-15[/tex]
[tex]27=y+15-15[/tex]
Subtract the numbers:[tex]27=y+15[/tex][tex]-15[/tex]
[tex]27=y[/tex]
Move the variable to the left:[tex]27=y[/tex]
[tex]y=27[/tex]
[tex]y=27[/tex]