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ohaa [14]
3 years ago
6

I NEED APPROPRIATE ANSWERS SO IF ANYONE CAN PLEASE ANSWER THESE TWO QUESTIONS I WILL GIVE YOU BRAINIEST. Can someone please help

me with these two questions:
What happens when PURE sodium (Na) and water react?

12. What happens when sodium chloride (NaCl or table salt) mixes with water? Is it the same or different when PURE sodium reacts with water?
Chemistry
1 answer:
In-s [12.5K]3 years ago
5 0

Answer:

1. When salt is mixed with water, the salt dissolves because the covalent bonds of water are stronger than the ionic bonds in the salt molecules

2. Pure sodium explodes on contact with water

Explanation:

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5. Which of the following statements is not true?
vladimir1956 [14]

i believe the answer is...

Atoms of isotopes of an element have different numbers of protons.

4 0
3 years ago
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Can someone help me with this please :)
antoniya [11.8K]

Answer: Hydrochloric acid poses a various health risk

5 0
3 years ago
1. Write the name meaning
Kisachek [45]

Answer:

A.. 0.1 gram this means 0.0001kg of the object in SI unit

b. 0.01 meter this means 1 / 10 of 1 meter of the measurement

c. 0.000001 liter this means 1/10000 of the quality of liquid in SI unit

e. 1000 000 grams.this means 1000kg of the object in IS unit

L. 10 meters this means 10 times one meter of the measurement in SI unit

3 0
3 years ago
What radionuclides is used in diagnosis of atherosclerosis
aliina [53]
Answer: technetium-99.

Explanation:

This is not an answer that you can look for in a book.

You need to do some research.

You can fiind the abstract of the article titled <span>Molecular imaging of atherosclerosis using a technetium-99m-labeled endothelin derivative.</span>

The conclusion of this scientific article is that labeling with the radiosotope Tc - 99 iis feasibele to visualize the effects of an experiment inducing atherosclerosis, which gives the answer to the question posted.
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8 0
3 years ago
Many carboxylic acids are much better known by their common names than by their systematic names. 2-Hydroxypropanoic acid (bette
sdas [7]

Answer:

  • CH₃ - CH - COOH

                  |

                  OH

  • The developed structural formula is also attached.

Explanation:

The IUPAC name, <em>2-hydroxypropanoic acid</em>, lets you predict the structural formula for <em>lactic acid</em>.

  • <em>2-hydroxy</em> means that there is a OH functional group attached to the second carbon atom of the chain.

  • <em>Propan</em> prefix means that the molecule has 3 carbon atoms.

  • <em>oic</em> suffix means that it is a carboxylic acid, this is it contains the COOH functional group.

Hence, in conclusion the structural form of lactic acid is:

  • C³H₃ - C²H - C¹OOH

                   |

                   OH

I used the superscripts just to show the number of the carbon atom in the chain.

The formal structural formula does not contain such superscripts it is just:

  • CH₃ - CH - COOH

                  |

                  OH

A more developed structural formula will show the distribution of the atoms in the space. I have also attached a picture with the developes structural formula.

3 0
4 years ago
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