All categories

2 years ago

Science edpuzzle All of the following describe a chemical change, EXCEPT…

Chemistry

1 answer:

Dmitry_Shevchenko [17]2 years ago

7 0

Answer:

Explanation:

You might want to pick "A sound is created" No that answer is just fine. If you listen when sitting around a campfire, you might hear the crackling of what is burning. Burning is an excellent example of a chemical change. Wood becomes ash.

The answer is a change in the state of matter. (B). That need not indicate a chemical change. In fact, most of the time, a change in matter is a physical change.

Answer: B

You might be interested in

What has a density of q

Novay_Z [31]

Answer:

Water has the density of 1.0g/ml
Anything with a density of less than 1.0/ml will float above water.
Alcohol would float above the water since it has a lighter density.

4 0

3 years ago

Carbon dioxide and ____ are outputs of cellular respiration

vova2212 [387]

Answer:

oxygen

Explanation:

plants use oxygen

5 0

3 years ago

The matter in this series of images is going through a change. Draw a conclusion about the type of change shown. Is it a physica

34kurt

Answer:

This is a chemical change because it has been lit on fire. When it is lit on fire, the fire has been made, heat has been made, and gasses produced from the fire have also been made. Because this introduces new matter to the pictures, it is a chemical reaction.

Explanation:

8 0

2 years ago

What will happen if you put a metal object to the beaker??

miss Akunina [59]

Answer:

umm i guess if there is a liquid inside it would rise to the top and the metal would sink to the bottom

3 0

3 years ago

what is the percent by mass of a solution that contains 30 grams of potassium nitrite in 0.5 kilograms of water?

Makovka662 [10]

Answer:

5.66 %.

Explanation:

mass percent is the ratio of the mass of the solute to the mass of the solution multiplied by 100.

mass % = (mass of solute/mass of solution) x 100.

mass of potassium nitrite = 30.0 g,

mass of the solution = mass of water + mass of potassium nitrite = 500.0 g + 30.0 g = 530.0 g.

∴ mass % = (mass of solute/mass of solution) x 100 = (30.0 g/530.0 g) x 100 = 5.66 %.

5 0

3 years ago