How do new substances form?

Answers

Answer 1

Answer:

A chemical reaction happens when substances break apart or combine to form one or more new substances.

Step-by-step explanation:

New substances form when bonds break and new bonds form. The chemical properties of the new substances are different from those of the original substances


Related Questions

veuillez répondre correctement

Answers

Answer:

Actually sorry

The image was not clear

But I will give you a hint.

For similar traingle all the three corresponding angle must be same.There corresponding side are proportional.

Notw:

If one side is equal than it is congruent.

A rectangular prism had a volume of 99 cubic centimeters. The length of this prism was changed from 3
centimeters to 6 centimeters to create a new rectangular prism. The other dimensions stayed the same.
What is the volume of this new prism?

Answers

Answer:

hhjjjhhhhhhhjnujjiki9jhbhhbbn

Evaluate the expression,
2(x + 3y) - 4

Answers

Answer:

2x+6y-4

Step-by-step explanation:

First distribute x and 3y

2 times x is 2x

2 times 3 is 6y

(2x+6y) -4

2x+6y-4

Hope this helps!

Answer:

2(x+3y-2)

Step-by-step explanation:

See the steps below:)

PLEASE HURRY!! A diver jumps off a high diving board that is 33 feet above the surface of the pool with an initial upward velocity of 6 feet per second. The height of the diver above the surface of the pool can be represented by the equation −16t2+6t+33=0
. How long will the diver be in the air, to the nearest hundredth of a second?

Answers

The diver will be in the air for approximately 0.78 seconds to the nearest hundredth of a second.

The equation that represents the height of the diver above the surface of the pool is given by:

h(t) = -16t² + 6t + 33

where t is the time in seconds and h(t) is the height of the diver above the surface of the pool in feet.

The diver will be in the air until he reaches the surface of the pool, which means that his height will be 0. Therefore, we can set h(t) equal to 0 and solve for t:

-16t² + 6t + 33 = 0

We can use the quadratic formula to solve for t:

t = (-b ± sqrt(b² - 4ac)) / 2a

where a = -16, b = 6, and c = 33.

Plugging in these values, we get:

t = (-6 ± sqrt(6² - 4(-16)(33))) / 2(-16)

t = (-6 ± sqrt(36 + 2112)) / (-32)

t = (-6 ± sqrt(2148)) / (-32)

Simplifying:

t = (-6 ± 46.34) / (-32)

So we have two solutions:

t = (-6 + 46.34) / (-32) ≈ 0.78 seconds

t = (-6 - 46.34) / (-32) ≈ 2.64 seconds

Since the diver cannot be in the air for a negative amount of time, we reject the second solution.

To learn more about the quadratic equation;

https://brainly.com/question/17177510

#SPJ1

i hatte math so much

Answers

me too but i think the answer would be F.

A semi-trailer in the shape of a rectangular prism, has inside measurements of 53 feet, 8 feet, and 8.5 feet. What is the volume of the trailer?

Answers

Answer:

4.5

Step-by-step explanation:

Would you rather lose the ability to cry or cry every day for 20 minutes randomly?

Answers

Answer:

Lose the ability to cry because i dont cry that much

Step-by-step explanation:

Answer:

loose the ability to cry l m a o

Step-by-step explanation:

Which numbers are factors of both 12 and 42?

Answers

Answer:

12

Step-by-step explanation:

64^2/3
does anybody know how to do this?

Answers

Step-by-step explanation:

64^2/3

=(2^6)^2/3

=(2)^6×2/3

=(2)^2×2

=2^4

=16

WILL CROWN BRAINLIEST

Clara is finding a quotient using a calculator. Which value represents the quotient when 4.5 x 10^8 is divided by 9 x 10^4?

A. 0.2E-5
B. 0.2E-4
C. 5E+3
D. 5E+4

Answers

Explanation:C. The answer is C 5E +3

PLEASE NO LINKS Thanks :))

Answers

Answer:

C: 22 points.

Step-by-step explanation:

i’m honestly very confused on how to figure this out

Answers

Answer:

y = -1/2 = -0.500

Step-by-step explanation:

your welcome have a good day :)

stay safe

stay hydrated

wear a mask

┐(^▂ ^ ;)┌

find the value of x. round to the nearest degree.

Answers

Step-by-step explanation:

I'm going with the 41....I'm not sure if it's right..

Answer:

C

Step-by-step explanation:

Using the sine ratio in the right triangle

sin x° = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{13}{20}[/tex] , then

x = [tex]sin^{-1}[/tex] ([tex]\frac{13}{20}[/tex] ) ≈ 41° ( to the nearest degree )

The acute angle formed between the x-axis and the hypotenuse of a right triangle drawn in the unit circle.
A. right angle
B. reference angle
C. standard angle
D. obtuse angle

Answers

Answer:

b

Step-by-step explanation:

Answer is d hope this helps

Write the equation in point-slope form of the line that passes through the given point and has the given slope: (-2, -1); m=-3

Answers

Answer:

y+1=-3(x+2)

Step-by-step explanation:

point-slope form is the formula y-y1=m(x-x1), where (x1, y1) is a point and m is the slope

we are given a point (-2, -1) and a slope of -3

all we really need to do is substitute the given into the formula

remember: since the formula gives subtraction, we're going to be subtracting, even though we have negative numbers

substitute -2 as x, -1 as y and -3 as m

y--1=-3(x--2)

we can simplify this equation:

y+1=-3(x+2)

Hope this helps!

All dimensions of a cylinder are multiplied by 1.5. Which statement is true?

A. The total surface area is multiplied by 3.375.
The volume is multiplied by 2.25.

B. The total surface area is multiplied by 2.25.
The volume is multiplied by 3.375.

C. The total surface area is multiplied by 3.
The volume is multiplied by 4.5.

D. The total surface area is multiplied by 4.5.
The volume is multiplied by 3.

Answers

Answer:

The true statement is;

B. The total surface area is multiplied by 2.25

The volume is multiplied by 3.375

Step-by-step explanation:

By scale drawing proportionality, we have;

The amount by which all the dimensions of the cylinder are multiplied to create an image of the cylinder = 1.5

∴ The scale factor between the original cylinder and the image of the cylinder, S.F. = 1.5

By rule, we have;

The area factor of the surface area = S.F.² = 1.5² = 2.25

Therefore;

The total surface area of the original cylinder is multiplied by 2.25 to get the total surface area of the image of the cylinder

By rule, we have;

The volume factor = S.F.³ = 1.5³ = 3.375

Therefore;

The volume of the original cylinder is multiplied by 3.375 to find the volume of the image of the cylinder.

Answer:

B

Step-by-step explanation:

HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP

Answers

9514 1404 393

Answer:

  A.  10 units

Step-by-step explanation:

The y-intercept of f(x) is f(0) = -9.

The y-intercept of g(x) is g(0) = g(1)/2 = 1.

The distance between these points is ...

  1 -(-9) = 10 . . . units

__

We notice that the common ratio of the table values of g(x) is 4/2=2, so the value for x=0 will be a factor of 2 less than the value for x=1.

HELPPPPPP. In a class activity, students collected data on the average number of pepperoni slices on various sizes of pizzas. A "New York" style pizza has a diameter of 18 inches. Use the least-squares regression line to predict the average number of pepperoni slices that the students could expect to on a "New York" style pizza. Pepperoni = - 0.156 Diameter
a.) 49 pepperoni slices
b.) 7 pepperoni slices
c.) 60 pepperoni slices
d.) 2 pepperoni slices

Answers

Answer:

49 slices

Step-by-step explanation:

.

Answer:

A) 49 slices

Step-by-step explanation:

HELPPPPPPP PLZZZZZZZZ

Answers

Answer:

azesrdftgyuh

Step-by-step explanation:

dxcfvghbj

top is x> 2.5

bottom is x<2.5

brainly me

Can someone help me with this!!!!!!

Answers

Answer:

The answer is 17.58

Target #3
The four concentric circles shown have diameters 10 cm, 14 cm, 20 cm and 28 cm. What is the total area of the shaded regions? Express your answer to the nearest whole number ?

Answers

14cm good luck hope it helps

What is the length of the dotted line in the diagram below? Round to the nearest tenth.

Answers

Answer:

length of dotted diagonal line = 11

Step-by-step explanation:

Using the Pythagorean theorem:

length of rectangle² = 9² + 6² = 81 + 36 = 117

length of rectangle = √117 = 10.82

length of diagonal² = 2² + 10.82² = 4 + 117 = 121

length of diagonal = 11

no links please i’m in yr7 / sixth grade so don’t make the answer too complicated or it won’t register ot

Answers

Answer:

each apple is £ 1.80

Step-by-step explanation:

i first multiplied the cost for one pear by 7, to get how much money was spent on pears out of the 12.70.

Then i took the remaining money and divided it by 2 to get how much each apple costs.

Answer:

1.80

Step-by-step explanation:

1) Price of Pears

[tex]1.30 * 7 = 9.10[/tex]          formating: 1.30*7 = 9.10

2) Price of Apples

[tex]12.70 - 9.10 = 3.60[/tex]          formating: 12.70-9.10 = 3.60

3) Price of Apples/Kg

[tex]\frac{3.60}{2} = 1.80[/tex]          formating: 3.60/2 = 1.80

Solving by Completing the Square
2x^2 - 2 - 3x = 0

Answers

Step-by-step explanation:

sorry..if it is wrong..I tried...........

URGENT!!
Solve for X

Answers

Answer:

[tex]\frac{X}{100} =\frac{600}{800} \\\\X = \frac{6}{8} \times 100 = 75[/tex]

A box contains 7 red marbles, 4 white marbles, and 5 blue marbles. If only white marbles are added to the box, how many must be added to
make the probability of drawing a white marble ş?
A: 1
B: 2
C: 5
D. 7
E: 12

Answers

Answer is e hope this helps

$1 less than three times the price

Answers

Answer:

???????

Step-by-step explanation:

Answer: 3x - 1

Step-by-step explanation:

let x = the price

3x would be three times the price

now minus one dollar would get:

3x - 1

express (2+4√6)÷(3√2-1) in the form p√2+q√3 where p and q are rational numbers​

Answers

When I put the right answer it says it’s wrong

Can someone plz help me plz I beg u :/

Answers

Answer:

i think the answer is b

Step-by-step explanation:

the others just dont feel right

....... it’s either b or d I think b because it’s kinda close to 3 and it sounds kinda right but then d because b is had 3 in it but will maybe not be closer to it... it might needed to be a 2... and a and c is to high

An arborist examined trees in an orchard to see if they were infected with a virus. The arborist counted 7 infected trees and 43 healthy trees. What percentage of the trees in the orchard were infected?

Answers

Answer: Percentage of infected trees =2%

Step-by-step explanation:

Number of Infected trees =7

Number of healthy trees=43

Total number of trees in the orchard=43+7=50

Percentage of infected trees =Number of Infected trees/Total number of tress in the orchard x 100

7/50 x 100 =2%

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