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2 years ago

Q3. A student wanted to make blue copper sulfate crystals from green copper carbonate powder

Chemistry

1 answer:

CaHeK987 [17]2 years ago

5 0

Heat the sulfuric acid solution and adding copper carbonate in it.

<h3>Improvement require in this experiment</h3>

The method could be improved by heating sulfuric acid solution and add copper carbonate into the solution of sulfuric acid. Add the copper carbonate until it is present in excess amount. After that filter the extra amount of copper carbonate so in this way the blue copper sulfate crystals are produced.

Learn more about copper here: brainly.com/question/3157958

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Which of the following is an adaptation that helps protect the animal?

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C ( Porcupines use there’s sharp quills to defend themselves from larger predators!)

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2 years ago

You have just isolated a new radioactive element. If you can determine its half-life, you will win the Nobel Prize in physics. Y

lbvjy [14]

Answer: 2.58 days

Explanation:

Expression for rate law for first order kinetics is given by:

$t=\frac{2.303}{k}\log\frac{a}{a-x}$

where,

k = rate constant = ?

t = age of sample = 6 days

a = initial amount of the reactant = 1 g

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a) to find the rate constant

$6=\frac{2.303}{k}\log\frac{1.0}{0.2}$

$k=\frac{2.303}{6}\log\frac{1.0}{0.2}$

$k=0.268days^{-1}$

b) for completion of half life:

Half life is the amount of time taken by a radioactive material to decay to half of its original value.

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The half life is 2.58 days

3 0

3 years ago

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lina2011 [118]

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3 years ago

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2 years ago

Students were investigating properties of matter, but wanted to make sure that when they tested these properties they had proper

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Answer:

See explanation

Explanation:

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The students were right, studying intrinsic properties accurately represent the matter that is being studied.

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3 years ago