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yaroslaw [1]
3 years ago
11

Your teacher is performing an experiment in the lab. She takes a test tube

Biology
1 answer:
pishuonlain [190]3 years ago
4 0

Answer:

a. bubbles formed

Explanation:

Bubbles are a sign of gaseous molecules escaping, meaning that something has forced molecules to break apart and escape. A chemical reaction involves any change that directly impacts the molecular formation of a substance.

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An organized group of interacting parts
Gekata [30.6K]

Answer:

System

Explanation:

Definition of system

7 0
3 years ago
Jumble letter can you help me plsss​
sveticcg [70]
<h2>Answer</h2>

  1. Wind
  2. Sunlight
  3. Plants
  4. Soil
  5. Coal
  6. Minerals
  7. Water
  8. Animals

\\

In short it's natural resources.

3 0
2 years ago
A cheeseburger from a fast food restaurant contains 19 g of fat, 20 g of carbohydrate, and 28 g of protein. How many kcal of ene
Nikolay [14]

Answer:

which equals 360 cal for total energy

Explanation:

We simply get the sum of the product of each mass and caloric values.

Total energy = 19 g * 9 kcal / g + 20 g * 4 kcal / g + 28 g * 4 kcal / g

Total energy = 363 kcal

5 0
3 years ago
How does the electron transport chain active during the Krebs cycle affect the hydrogen ion concentration in a mitochondria
belka [17]
Electron transport trains create a concentration gradient of hydrogen ions outside the mitochondria and fewer inside the mitochondria and creates energy(ATP) by diffusing the hydrogen ions back in
8 0
3 years ago
Phil observes that when he turns on a flashlight, chemical energy from the batteries is transformed into light energy. Phil trie
grin007 [14]

Answer:

A. a lamp being turned on

B. a toaster being used to toast bread

D. a car horn honking

Explanation:

Energy transformation is the conversion of one form of energy to another form in accordance with the law of conservation of energy. According to this question, Phil is observing a flashlight, which turns chemical energy (batteries) into light energy.

From the examples given in this question, the following are examples of scenarios that involve energy transformation:

- A lamp being turned on: This converts chemical energy to light energy.

- A toaster being used to toast bread: This converts electrical energy to heat energy.

- A car horn honking: This converts electrical energy to sound energy.

Note that, melting of a chocolate does not transform any form of energy.

3 0
2 years ago
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