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LiRa [457]
3 years ago
7

Why do you think it would be important for scientists to test local water?

Chemistry
2 answers:
Paha777 [63]3 years ago
6 0

Answer:

It would be important because they will know if the water is infected by some type of disease or harmful bacteria

Explanation:

il63 [147K]3 years ago
4 0

Answer:

To see if the water is safe to drink.

Explanation:

It is important for local water to be tested to see how the water quality is and to check if there are any pollutants (such as fertilizers or oil). Most of the world's water is not safe to consume, it would be useful to know what your local water is like.

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When you add water to calcium oxide it makes calcium hydroxide
Romashka [77]
Yes you add water to calcium oxide it makes calcium hydroxide
7 0
3 years ago
Why is it important to use low flame when evaporating water from a recovered filtrate?
goldfiish [28.3K]

It is important to use low flame when evaporating water from a recovered filtrate because then the water and filtrate will not spatter and the filtrate can also be recovered after evaporating water.

If flame is not low then water as well as got spatter so it is important to use low flame so that   the water and filtrate will not spatter.


4 0
3 years ago
In a common laboratory experiment in general chemistry students are asked to determine:_____.
Alex787 [66]
<h3>The <u>complete question</u> would be:</h3>

In a common laboratory experiment in general chemistry, students are asked to determine the relative amounts of benzoic acid and charcoal in a solid mixture. Benzoic acid is relatively soluble in hot water, but charcoal is not. Devise a method for separating the two components in the mixture.

<h3>The <u>solution</u> for that would be:</h3>

First you put the mixture in hot water and allow the benzoic acid to separate. Next funnel it and then see what's on the funnel paper. Lastly, heat the leftover water and see what's left after it evaporates.

<h3><u>What are laboratory experiments ?</u></h3>
  • Using controlled surroundings to test theories, researchers may develop laboratory experiments.
  • Laboratories are rooms or specially constructed facilities within buildings that are often found on college and university campuses and are utilized for academic research.
  • It's crucial to differentiate between experiments and other kinds of research investigations carried out in lab settings.
  • Even if a research study takes place in a lab, it is not always an experiment.
  • In order to evaluate causal conclusions regarding the links between independent and dependent variables, laboratory studies, like all genuine experimental designs, use procedures of random assignment of participants and control groups.

To view more about experiments, refer to:

brainly.com/question/17143317

#SPJ4

3 0
10 months ago
!!NEED URGENT SCIENCE HELP!! Please help me with this I am so lost. I will mark you brainliest and like ur answer and rate it 5
Citrus2011 [14]

Answer:

1. D   2. C   3. B

Explanation:

1. The product is always what is being yielded from the equation, or what is created. Since both 4H2O and 3CO2 are created from the reactants, they are both products of the reaction.

2. The Law of Conservation of Matter states that matter cannot be created, nor destroyed. Therefore, C is not true because new atoms cannot be created in a reaction.

3. The second formula is balanced, but the first is not

5 0
2 years ago
Which of the following is an example of a combustion reaction?
Alexus [3.1K]

Answer:

C) Lighting a matchstick

Explanation:

Mixing an acid and base will cause a neutralization reaction, a type of double displacement.

Photosynthesis is just a series of chemical reactions, but don't deal with the use of O2, but rather it's creation.

Reacting sodium and chlorine would make NaCl in a synthesis reaction.

6 0
2 years ago
Read 2 more answers
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