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N76 [4]
3 years ago
15

Marcel conducts an experiment to test which stain remover works best on mustard stains. He wants to make sure that he does not m

ake mistakes and has correct data in his experiment. What should Marcel do to make sure that his data are correct? conduct a similar experiment with a different washing machine ask other students to conduct related experiments at their homes ask his sibling to conduct the same experiment using his washing machine repeat the experiment several times with the same variable and constants
Chemistry
2 answers:
skelet666 [1.2K]3 years ago
5 0

Answer: Repeat the experiment several times with the same variable and constants.

Explanation: The experimental procedure should be performed many times so as to determine the effect of the stain remover on mustard stain in different conditions and while using different variables such as water and type of machine used. This will tell how useful the stain remover in all conditions provided to check the accuracy of the stain remover.

Hope this help!!! :)

Zina [86]3 years ago
4 0

Answer:

C

Explanation:

if his brother does the expire end it is replication if he was to do the same expirement with the same variables then the same outcome would come out

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The statement that describes the advantage of a nonrenewable energy source is that ' they are currently found in abundance' Option D.

Explanation:

Nonrenewable energy sources are sources of energy which will not be replenished after their use, their production usually takes millions of years to be accomplished, Like crude oil, the synthesis under the ground was believed to take Millenium from the various geothermic reactions that occur on the buried biomass millions of years ago.

However, since these energy sources are liable to be exhausted quickly due to their unreplenish nature, nature provides them in abundance. They are currently found in large quantity. Take for example, the coal deposit and crude oil wells which had been mined for many years before now. The continuous usage of these nonrenewable sources nevertheless makes them to be susceptible to exhaustion in some years to come.

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3 years ago
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Uma declaração verdade é identificada pelo de ela afirmar a verdade diferente das outras opções

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4 years ago
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3 years ago
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With all the coefficient set to 1, how can you tell that the equation is not balanced?
murzikaleks [220]

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