Which of these never changes during a chemical change?

1 answer:

6 0

B is not correct because new molecules are formed so numbers can change. D isn't correct because the color often changes, for example metallic iron and clear oxygen form red rust. The arrangement of the atoms changes, too so a isn't correct. C is cotrect

You might be interested in

All organisms in kingdom animalia are multicellular here meaning their bodies are composed of more than one so would you other C

notsponge [240]

Option B and D are wrong.

5 0

3 years ago

Once the body has begun shivering, what happens to make it stop shivering?

Pavel [41]

Answer:

One hint is that, if a message is being sent, the "sender" is probably the nervous systems. There are several subsystems to the nervous system, but it regulates and controls virtually all bodily functions. The nervous system monitors your body's temperature, and takes actions to regulate it, such as telling your muscular system to shiver to generate more heat. It sends this message to the muscular system because your muscles cause bodily movement, such as walking, lifting weights, and even shivering.

When your nervous system determines that your body temperature has returned to normal, it again sends a message to your muscular system to stop shivering.

8 0

3 years ago

You respond to a diving accident in which the victim tells you that she was descending and began suffering from severe pain in h

Trava [24]

Answer: Barotrauma

Explanation: Barotrauma refers to injuries caused by increased air or water pressure,

7 0

3 years ago

Part A

lions [1.4K]

Answer:

function as support cells

Explanation:

Neurons are structural and functional units of the nervous system. They are specialized cells that carry impulses from one part of the body to another. There are three main types of neurons in mammalian body. These are motor, sensory and intermediate neurons.

7 0

4 years ago

Which of the following was the major contribution made by Avery, MacLeod, and McCarty that strengthened the argument that the tr

galben [10]

The major contribution made by Avery, MacLeod, and McCarty was 'transformation of nonvirulent cells with a DNA extract was blocked only if DNase was added'. This observation supported the idea that the transforming agent in Griffith's experiment was DNA.

The Avery–MacLeod–McCarty experiment showed that DNA was the transforming agent observed in Griffith's experiment.

Griffith's experiment (1928) suggested that bacteria were capable of transferring genetic information (DNA) by a process of horizontal gene transfer called transformation.

While the bacteria were killed by heat, Frederick Griffith observed that the DNA had was taken up by II-R strain bacteria via transformation.

Avery–MacLeod–McCarty experiment observed that protease enzymes did not destroy the transforming agent (but DNAse destroyed this transforming principle), thereby suggesting that the transforming agent in Griffith's experiment was bacterial DNA.

Learn more in:

brainly.com/question/927265?referrer=searchResults

3 0

2 years ago