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just olya [345]
3 years ago
14

Which laboratory activities involve chemical changes?

Social Studies
2 answers:
rjkz [21]3 years ago
6 0

Answer:

leaving a copper penny in vinegar until it turns green

Explanation:

just took the test

Galina-37 [17]3 years ago
5 0

Answer:

The green growing on the penny of copper and the rust forming on the nail of iron are chemical changes.

Boiling away salt water, scraping iron filings from a mixture of sand with a magnet, and breaking a rock with a hammer, are physical changes.

Extracting iron filings from a mixture of sand with a magnet is absolutely no change.  That's merely separating items that got mixed up.

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Which of the following is not a function or discipline of facility management? capital management space planning project managem
levacccp [35]

Answer:

all of these are either functions or disciplines

Explanation:

Facility management focuses on making sure that the physical environment (building) and services are favorable for the employees, so that they are able to operate at an optimum level.

4 0
3 years ago
Ways ethnicity could disrupt the peaceful life in a country ​
lubasha [3.4K]

Ethnicity could disrupt the peaceful life in a country in many ways. One of the major ways is through ethnic conflicts.

Ethnic conflicts often arise due to different ethnic groups competing for powers, resources, or territory.

Where there are ethnic conflicts between different or various ethnic groups, this may lead to violent conflicts, thereby causing the killing of humans through civil wars, vandalization, etc.

These saddening events may lead to disruption of the peaceful life of a country through things like:

  • Internal displacement,
  • Regional instability,
  • Economic failures,
  • Environmental disasters, etc.

Hence, in this case, it is concluded that the main ways in which ethnicity disrupts the peaceful life in a country in many ways are through "Ethnic conflict."

Learn more here: brainly.com/question/21006394

3 0
3 years ago
Examples of a(n) __________ would include people who are the same age, race, or gender, or those who share the same educational
AnnyKZ [126]

Answer:

Category

Explanation:

A social category is defined as<em> a group of individuals that share similar characteristics</em>, in this case, age, race, gender or educational level, but who do not interact with each other.

I hope you find this information useful and interesting! Good luck!

4 0
3 years ago
Is it right to burn the American flag?
Westkost [7]
The answer to this question is:

Is it right to burn the American flag?"No, especially when your on us solid its against one of the U.S biggest rules not to burn the flag and your sworn in oath to take care and love the united states meaning not to burn the flag or your not a true United states citizen"

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Your Welcome :) </span>
3 0
4 years ago
Read 2 more answers
A country has two main products: hats and grapes. The country decides to start making more and more hats and fewer and fewer gra
marta [7]

Answer:

B. The best resources for producing grapes are least suites to making hats.

Explanation:

4 0
3 years ago
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