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Vesna [10]
3 years ago
14

Map Formulate your hypothesis. List down the materials. • Write the methods.

Chemistry
1 answer:
Whitepunk [10]3 years ago
5 0

Answer:

How to Formulate an Effective Research Hypothesis

State the problem that you are trying to solve. Make sure that the hypothesis clearly defines the topic and the focus of the experiment.

Try to write the hypothesis as an if-then statement. ...

Define the variables.

Explanation:

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Zn(s) + 2HCl(aq) → ZnCl2(aq) + H2(g)
ZanzabumX [31]

Answer:

limiting reactant

Explanation:

<em>The term that will be used to describe zinc in this case is </em><em>limiting reactant.</em>

A limiting reactant is a reactant that determines the amount of product formed in a chemical reaction. They are often stoichiometrically smaller of all the reactants in a reaction and once they are used up during, the reaction stops.

In this case, the zinc metal in the reaction is completely consumed, making the hydrochloric acid to be in excess. The zinc thus determines the amount of the products formed,

8 0
3 years ago
The half-life of carbon-14 is 5,730 years. How many grams of parent material will remain from a 200-gram sample after 3 half-liv
Alex17521 [72]

Answer:

The answer to your question is 25 grams

Explanation:

Data

half-life = 5730 years

sample = 200 g

after 3 half-lives

Process

Calculate the amount of sample after one, two and three half-lives.

After each half-life, that of sample is half the previous amount.

                         Number of half-lives           Amount of sample

                                       0                                        200 g

                                        1                                         100 g

                                        2                                          50 g

                                       3                                           25 g

4 0
3 years ago
In what industry do fertilizers and pesticides wash off and contaminate water supplies?Construction Oil Transportation Agricultu
KIM [24]

Answer:

The answer is agriculture.

Explanation:

3 0
3 years ago
Which of the following is NOT a property of an acid?
Kryger [21]
The answer here is D - bases tend to feel slippery. This is because they tend to dissolve oils on your skin, reducing the friction between your fingers or hands when you rub them together.
7 0
3 years ago
True or false? An organism may play more than one role in a food web
Arte-miy333 [17]

Answer:

True

Explanation:

Your welcome! :) Good luck!

4 0
3 years ago
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