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g100num [7]
3 years ago
6

1. Mixing is a physical change. True or false

Chemistry
2 answers:
Arada [10]3 years ago
6 0

Answer:

false it is a chemical change

Hitman42 [59]3 years ago
5 0

Answer:

true

Explanation:

if u mix it can explode which is a chemical reaction

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The following diagram best represents​
Ilya [14]

Answer:

Mixture of two elements

Explanation:

You can tell that it is an element since the atoms are only bonded to atoms of the same type.  It is a mixture since the molecules are together in solution but aren't bonded together.

4 0
3 years ago
Write a paragraph, citing examples from the text, to explain how Dr.
grigory [225]

Paul J. Chirik developed methods associated with chemistry catalysis and transition metals, which may result useful for the development of manufacturing technologies.

<h3>What is catalysis?</h3>

Catalysis refers to the chemical processes that increase the rate of different types of reactions by lowering its activation energy.

Proteins (enzymes) are biological catalysts that increase the rate of chemical reactions in biological systems.

Catalysis may be reached by using transition metals (e.g., actinium and rutherfordium), which result useful in the development of manufacturing technologies.

Learn more about catalysis here:

brainly.com/question/12507566

8 0
2 years ago
How does examining past data help prepare people for feature weather hazards?
klemol [59]

Answer:

It lets people prepare for future weather hazards:

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8 0
3 years ago
Solids _____.
Ierofanga [76]

Answer:

Are difficult to compress.

Explanation:

3 0
3 years ago
Read 2 more answers
HELPPPPP ME <br><br>PLISSSSS ​
Talja [164]

Answer:

pH value of a solution depends on the concentration of hydrogen ions

(pH = -log[H+(aq)].

Hydrochloric acid is a strong acid, while ethanoic acid is a weak acid. Strong acids ionize completely in water (to give ions which includes H+(aq)), while weak acids only ionize partially in water.  

Therefore, even if both hydrochloric acid and ethanoic acid are monobasic acids (each molecule can ionize completely to give 1 hydrogen ion), since hydrochloric acid ionizes completely in water and ethanoic acid does not ionize completely, the concentration of hydrogen ions in hydrochloric acid is higher than that of ethanoic acid, leading to a lower pH value for hydrochloric acid, while higher for ethanoic acid.

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3 years ago
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