WILL GIVE BRAINLIST HELLLLLLLLLPPPPPPPPPPP!!!!!!!!!!!!!!!!!!!!!!!!!!!!
b) Type one to two paragraphs that describe your models and relate them to the law of
conservation of mass. Your document should:
i. identify the names of the reactants and products in the reaction.
ii. identify the number of molecules that make up the reactants and products.
iii. identify the type and number of atoms in each molecule of the reactants and products.
iv. explain what happens during the chemical reaction.
v. explain how mass is conserved during the chemical reaction

Answers

Answer 1

Assignment: Type one to two paragraphs that describe your models and relate them to the law of conservation of mass. Your document should:

Identify the names of the reactants and products in the reaction.

Identify the number of molecules that make up the reactants and products.

Identify the type and number of atoms in each molecule of the reactants and products.

Explain what happens during the chemical reaction.

Explain how mass is conserved during the chemical reaction

The name of the reactant in this reaction is called Calcium Carbonate (CaCO3) and the products in this reaction are Calcium Oxide (CaO) and Carbon Dioxide (CO2). There are 5 atoms total in calcium carbonate: one calcium atom, one carbon atom, and 3 oxygen atoms. In calcium oxide there are 2 atoms total: one calcium atom and one oxygen atom. In carbon dioxide there are 3 atoms total: one carbon and two oxygen atoms. So in the reaction the mass of the products stayed the same because according to the law of conservation, “in a closed or isolated system, matter cannot be created or destroyed. It can change forms but is conserved.” This can be seen in the reaction because no matter was made or destroyed, it was all just rearranged. To further explain, the law of mass conservation in chemistry states that, “in a chemical reaction, the mass of the products equals the mass of the reactants,” which further proves that no matter was created or destroyed, just rearranged. In conclusion, in the reaction the products had the same number of atoms as the reactant because no matter was destroyed or created, simply rearranged to create new products!

WILL GIVE BRAINLIST HELLLLLLLLLPPPPPPPPPPP!!!!!!!!!!!!!!!!!!!!!!!!!!!!b) Type One To Two Paragraphs That

Related Questions


Item 1
Question 1
The graph of which of the following functions does not belong with the other three?


$f\left(x\right)=3x^2+6x-24$

$f\left(x\right)=3x^2+24x-6$

$f\left(x\right)=3\left(x-2\right)\left(x+4\right)$

$f\left(x\right)=3\left(x+1\right)^2-27$
Question 2
This is the only function that does not have x-intercepts at $x=$ Response area and $x=$ Response area and a vertex at (Response area , Response area).

Answers

Answer:

im too slow i thought this was a gta cheat code

Answer:

I only know the first question and it's f(x)=3x^2+24x-6.

A plane leaves airport A and travels 550 miles to airport B on a bearing of N35°E. The plane later leaves airport B and travels to airport C 380 miles away on a
bearing of S72°E. Find the distance from airport A to airport to the nearest tenth of a mile

Answers

Answer:

d₃ = 803.9 Miles

Step-by-step explanation:

d₁ = 560 Miles

R₁ = N35⁰E

d₂ = 410 Miles

R₂ = S76⁰E

d₃ = ?

α = 35⁰+76⁰ = 111⁰

We can apply the Law of Cosines as follows

d₃ = √(d₁² + d₂² - 2*d₁*d₂* Cos α)

⇒  d₃ = √(560² + 410² - 2*560*410* Cos 111⁰) = 803.9 Miles

Communicate Mathematical Ideas Find the area of the figure. Explain how you found your answer. 10 ft 16 ft 12 ft 18 ft
I'm confused​

Answers

Answer:  300 square feet

Explanation:

The trapezoid has area of

A = h*(b1+b2)/2

A = 6*(10+18)/2

A = 84

The rectangle is 18 ft by 12 ft, which leads to an area of 18*12 = 216 sq ft.

Adding the two sub-areas gets us: 84+216 = 300

The total area of the house-shaped figure is 300 sq ft.

Function f is defined by f(x)=3/2x+c. If f(6)=1, what is the value of f(c)?

Please don't just give me an answer, explain it so I understand. Thanks.

Answers

Answer:

C = - 8

Step-by-step explanation:

[tex]f(x) = \frac{3}{2} x + c \\ \\ plug \: x = 6 \\ \\ f(6) = \frac{3}{2} \times 6 + c \\ \\ f(6) = 3 \times 3 + c \\ \\ f(6) = 9+ c \\ \\ \therefore \: 1 = 9 + c \: \{ \because \: f(6) = 1 \} \\ \\ 1 - 9 = c \\ \\ \huge \red{ \boxed{ c = - 8}}\\\\

f(c) =\frac{3}{2} c +(-8)\\\\

\huge \orange { \boxed{ f(c) =\frac{3}{2} c -8}} \\\\ [/tex]


A parabola can be drawn given a focus of (-9, -7) and a directrix of x = 9. Write
the equation of the parabola in any form.

Answers

Check the picture below, so the parabola looks more or less like so, with a vertex at (0 , -7), let's recall the vertex is half-way between the focus point and the directrix.

so this horizontal parabola opens up to the left-hand-side, meaning that the "P" distance is a negative value.

[tex]\textit{horizontal parabola vertex form with focus point distance} \\\\ 4p(x- h)=(y- k)^2 \qquad \begin{cases} \stackrel{vertex}{(h,k)}\qquad \stackrel{focus~point}{(h+p,k)}\qquad \stackrel{directrix}{x=h-p}\\\\ p=\textit{distance from vertex to }\\ \qquad \textit{ focus or directrix}\\\\ \stackrel{"p"~is~negative}{op ens~\supset}\qquad \stackrel{"p"~is~positive}{op ens~\subset} \end{cases} \\\\[-0.35em] \rule{34em}{0.25pt}[/tex]

[tex]\begin{cases} h=0\\ k=-7\\ p=-9 \end{cases}\implies 4(-9)(x-0)~~ = ~~[y-(-7)]^2 \\\\\\ -36x=(y+7)^2\implies x=-\cfrac{1}{36}(y+7)^2[/tex]

Kodiak is riding her skateboard
down a hill.
What is the slope?


Please help asap

Answers

Answer:

Slope = 1/20

Step-by-step explanation:

Because every 1 second, she goes down 20 feet.

Answer:the answer is the pic

Step-by-step explanation:

hope this helps bye

-4x^2+2x-5(1+x) what is the answer

Answers

Answer:

4x^2−3x−5

Step-by-step explanation:

On a field trip there are 3 adults for every 45 students. Which graph models a relationship with the same unit rate?

Answers

Step-by-step explanation:

There is 1 adult for every 15 students. (I don't see any pictures of a graph)

Answer:

There is 1 adult for every 15 students

Step-by-step explanation:

A recipe for pasta dough says, “Use 150 grams of flour per large egg.” How much flour is needed if 6 large eggs are used?

Answers

Answer:900g

Step-by-step explanation:

150*6=900

Answer:

900 grams of flour

Since you already know that 150 grams of flour is used for one large egg

Just do 150×6 and that will give you the answer of 900.

I hope that helps :)

I need help plz!!!! Anyone?

Answers

Answer:

30

Step-by-step explanation:

2x30=60

3x30=90

60+90+30=150

This is probably rly easy but I'm lazy
I'll give you brainliest!!

(The answer choices are 1/12 mph, 3 3/4 mph, 5 mph or 15 mph).

Answers

Answer:

5mph

Step-by-step explanation:

driver 1 is driving 45mph (7x6=45)

driver 2 is driving 50mph  (10x5=50)

Please help me out!​

Answers

The answer will be s = -9
Answer: s = -9


Solution:
18-7s=-9s to -7s=-9s-18 (change the sign of the constant [18] and then move it to the right)

Now move the variable (-9s) to the left side and change its sign as well (now it's just +9s)

Now we have -7s + 9s= -18

Combine the like terms (-7s+9s)

Now we have 2s= -18

And then divide both sides of the equation by two (which equals s = -9)

And then you have your answer, s = -9

Hope you have a great day, God bless! :)

Find the sum.

48 + 45 + 42+. +(-81) + (-84)

Answers

Answer:

-810

Step-by-step explanation:

I found the answer but this is correct for khan

find 90% of 650 ........
explain if possible

Answers

90% of 650 is 585 I have no idea how to explain

Answer:

585

Step-by-step explanation:

650/10 = 65 (10%)

65 * 9 = 585

Solve the inequality

Answers

Answer:

B

Step-by-step explanation:

a map has a scale of 1 inch = 16 miles. What is the actual distance if the distance on the map is 9 3/4 inches

Answers

Answer:

156 miles

Step-by-step explanation:

For every inch, you will have 16 miles

So if you have 9 3/4 inches you can just multiply that with 16

9 3/4*16=156

Our answer is 156 miles

Which of the following statements about parallelograms are true?
Select all that apply.

options:

All parallelograms have 4 right angles.


All parallelograms have rotational symmetry of 90°.


All parallelograms have rotational symmetry of 180°.


A rectangle is a parallelogram.


All parallelograms have exactly 4 lines of symmetry.

Answers

Answer:

All parallelograms have 4 right angles.

All parallelograms have rotational  symmetry of  180°.

A rectangle is a parallelogram.

Step-by-stepStep-by-step explanation:

let me know if im wrong......have a good day!!!!  :)

Is it a function? Or not

Answers

Answer:

Nah

Step-by-step explanation:

Nah tbh I don't think so if I'm being honest

need help with this asap!! thank you

Answers

I believe the answer is 12 1/4 cubic inches. Tell me if I’m incorrect. I hope this helps and good luck on your learning journey :)

Answer:

12 1/4

Step-by-step explanation:

2in

3.5in

1.75in

equals:

12.25 or 12 1/4

PLEASE HELP!

The diameter of a bicycle wheel is 26 inches. how many feet will the bicycle travel if the wheel turns 20 times?

Answers

Answer:

163.1 feets bicycle will move in 20 revolution

Step-by-step explanation:

Given:-

Diameter of bicycle wheel is 26 inch

Then the radius will be 13 inch

Solution:-

One revolution = Perimeter of bicycle wheel

Perimeter of bicycle wheel :-

= 2πr

= 2×22/7×13

81.7 inch

Total feets the bicycle will travel If it turns 20

times :-

81.7×20

= 1634 inches

Distance covered in feets:-

1634/12

= 163.1 feets

Can anyone help me with this?

Answers

Answer:

brrooo me too i hate bell work

Step-by-step explanation:

good luck tho

i’m honestly not sure about the answer but..
anything multiplied by zero would equal zero
so the value of q would be 0.

q=2(0)p
q=(0)p
q=0

Can someone please help me

Answers

Answer:

is this geometry. if it is then i can help you

Step-by-step explanation:

NM be xKL be 2x

[tex]\\ \rm\rightarrowtail \dfrac{NM}{NO}=\dfrac{KM}{KL}[/tex]

[tex]\\ \rm\rightarrowtail \dfrac{x}{7}=\dfrac{20}{2x}[/tex]

[tex]\\ \rm\rightarrowtail 2x^2=140[/tex]

[tex]\\ \rm\rightarrowtail x^2=70[/tex]

[tex]\\ \rm\rightarrowtail x=\sqrt{70}[/tex]

Carl is a biologist studying different types of mammals. He finds in one vally that there are 15 plant-eating mammals for every 2 meat-eating mammals. The total population is about 2,900. Which number is the beat estimate of the population of meat-eating mammals in the valley. * 170 *340 *1,450 * 2,560

Answers

Answer: 340

Step-by-step explanation:

Given: There are 15 plant-eating mammals for every 2 meat-eating mammals.

i.e. ratio of meat-eating mammals to plant eating animals = 2:15 or [tex]\dfrac2{15}[/tex]

ratio of meat-eating mammals to total population = [tex]\dfrac{2}{17}[/tex]

Total population: 2,900 (approx.)

The population of meat-eating mammals in the valley = [tex]\dfrac{2}{17}\times2900[/tex]

[tex]\approx341[/tex]

From the given options, the best estimate of the population of meat-eating mammals in the valley = 340

Y is the midpoint of XZ and W is the midpoint of VX.

If VZ=s+52 and WY=7s, what is the value of s?

Answers

Answer:

4

Step-by-step explanation:

By the triangle midsegment theorem, 2(YW)=VZ.

This means 2(7s)=s+52, and thus s=4.

please help quick!! Jane makes house calls. For each, she is paid a base amount and makes additional money for each hour she works. The graph below shows her pay (in dollars) versus the number of hours worked.

Answers

Answer: a) $30  b) $50  c) $20 each hour   d) No, because the line does not pass through (0,0)

Step-by-step explanation:

What is Jane's pay if she doesn't work any hours? This question means how much money does Jane gets paid for working 0 hours (y-intercept). At 0 hours on the x-axis, the point on the line is $30. This can be written as (0,30)

If she works 1 hour, the point where 1 hour on the x-axis meets with the y-axis is $50 dollars. This can be written as (1,50).

Her pay increase each hour is the slope in this given equation as the starting payment before completing any hours work is $30 and the line increases at a positive rate of change. The slope is y^2-y^1 divided by x^2-x^1, and we have (0,30) and (1,50). Plugging them into the formula, 50-30 divided by 1-0 is 20; the slope is $20 for every 1-hour increase).

And for determining whether b and c are equal, every answer choice includes whether the line passes through the point (0,0). After answering problem c, you should find that your equation is y=20x+30 (20 as the slope and 30 as the y-intercept). As a reminder, b is $50 and c is $20, so you already know it is not the top two answer choices. So to see if it DOES pass through (0,0) you can plug the values into the equation OR graph it. Either way, you will see that (0,0) does not pass through the line and that 0 does not equal 30 (0=20(0)+30).  

Alexa is researching a cure for the coronavirus. She needs 14 test tubes for 4 experiments. The first experiment requires 2 test tubes, and the remainder of the tubes are used evenly over the rest of the experiments. How many test tubes did she use for the last experiment?

Answers

Answer:

She used 4 test tubes for the last experiment

Step-by-step explanation:

Total test tubes needed = 14

Experiment 1 = 2 test tubes

Total test tubes remaining = total - used

= 14 - 2

= 12 test tubes

Remaining experiment = 4 - 1

= 3

Test tubes used for the remaining experiment = test tubes remaining / Experiment remaining

= 12 / 3

= 4 test tubes

How many test tubes did she use for the last experiment?

She used 4 test tubes for the last experiment


-5 – 3(x – 8) = -5x + 19

Answers

Answer:

[tex]x=0[/tex]

Step-by-step explanation:

Given the following question:

[tex]-5 - 3(x - 8) = -5x + 19[/tex]

To find the answer expand the equation, add/subtract on both sides, and simplify the expression.

[tex]-5 - 3(x - 8) = -5x + 19[/tex]
[tex]-5-3(x-8)=-3x+19[/tex]
[tex]-3x+19=-5x+19[/tex]
[tex]19-19=0[/tex]
[tex]19-19=0[/tex]
[tex]-3x=-5x[/tex]
[tex]-3x+5x=-5x+5x[/tex]
[tex]-3x+5x=2x[/tex]
[tex]2x=0[/tex]
[tex]2x\div2=x[/tex]
[tex]0\div2=0[/tex]
[tex]x=0[/tex]

Your answer is "x = 0."

Hope this helps.

2. A Cylindrical hot water tank is closed at both ends. The radius of the tank is 0.5m and the height is 0.75.calculate i. The volume of the Cylinder it. The total surface area of the tank (take π =22 out of 7​

Answers

Answer:

Volume = 0.59 m³

Surface Area = 3.93 m²

Step-by-step explanation:

Given :-

- Radius = 0.5 cm

- Height = 0.75 cm

To Find :-

- Volume

- Surface Area

Solving :-

Volume = πr²h

= 22/7 x (0.5)² x 0.75

= 22/7 x 1/4 x 3/4

= 66/112

= 33/56 m³

= 0.59 m³

Surface Area = 2πr (r + h)

= 2 x 22/7 x 0.5 (0.5 + 0.75)

= 22/7 x 5/4

= 110/28

= 55/14 m²

= 3.93 m²

Solution :-

Volume = 0.59 m³

Surface Area = 3.93 m²

Answer:

1. Formula for volume of a cylinder;

V = πr^2h

where pi is 3.14 or 22/7, r is the radius(0.5) which is squared, and h is the height

plug in the actual values;

V = πr^2h

V = 3.14 * 0.5^2 * 0.75

V = 3.14 * 0.25 * 0.75

V = 0.785 x 0.75

V = 0.58875^3 meters or 0.59^3 meters, is the volume. (round to whatever place they covet)

2. Formula for surface area of a cylinder;

SA = 2πr(r + h)

Plug in the actual values:

SA = 2πr(r + h)

SA = 2 x 3.14 x 0.5(0.5 + 0.75)

SA = 2 x 3.14 x 0.5(1.25)

SA = 2 x 3.14 x 0.625

SA = 3.925 meters or 3.93 meters is the surface area.

please may someone help me i have been doing this for hours

Answers

think of the mirror reflection

imagine folding the sheet on the horizontal line y = 1

A        B

         C

----------------------         y = 1

         C'

A'       B'

This is really simple, all you have to do is:

please please help me!​

Answers

Answer:

D: -5,-2,1,5

R:10,11,4,

Step-by-step explanation:

The domain is the set of all the values of x.

The range is the set of all the values of y

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