Ask question

Ask question

All categories

3 years ago

15

What type of changes indicate a chemical change?

2 answers:

Kipish [7]3 years ago

8 0

Answer:

Chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. These processes are called chemical reactions and, in general, are not reversible except by further chemical reactions

Mkey [24]3 years ago

4 0

Answer:

Change in smell or change, gas bubbles, color change,

Step-by-step explanation:

You might be interested in

Is of 12 equal to 9?<br>no

Vesnalui [34]

Answer:

12=9

Obviously

.................

4 0

2 years ago

What is the area of a triangle with a base of 7 mm and a height of 10 mm

galina1969 [7]

Answer:

A≈3.5×10-5m²

Step-by-step explanation:

5 0

3 years ago

Is -14/3 greater than -4

ser-zykov [4K]

Answer:

greater then

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

A water sprinkler sends water out in a circular pattern. How many feet away from the sprinkler can it spread water if the area f

myrzilka [38]

Answer:

The sprinkler can spread water 18 feet away.

Step-by-step explanation:

We are given the following in the question:

Area formed by watering pattern = 1,017.36 square feet

We have to find the how far the sprinkler spread the water.

The sprinkler covers a circular area. We need to find the radius of this circular area to find the how far the sprinkler spread the water.

Area of circle =

$A = \pi r^2$

where r is the radius of the circle.

Putting values, we get,

$1017.36 = 3.14 r^2\\\\r^2 = \dfrac{1017.36}{3.14}\\\\r^2 = 324\\r = \sqrt{324} = 18\text{ feet}$

Thus, the sprinkler can spread water 18 feet away.

6 0

3 years ago

Read 2 more answers

The longest side is 24cm and the second-longest side is 20cm what is the length of the shortest side?

lakkis [162]

13.3cm rounded to the nearest 10th

5 0

3 years ago