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Paha777 [63]
3 years ago
7

PLEASE HELP!!!! WILL GIVE BRANLIEST!!

Chemistry
2 answers:
NISA [10]3 years ago
6 0

Answer:

help with what...

..

........

Korvikt [17]3 years ago
3 0
Phenolphthalein is in pink colour. it will turn colourless if the solution become neutral. the lemon is acidic. so it will not change colour. please mark me brainliest
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When aluminium and chlorine compared , which has smaller atomic size ? Why ?​
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Chlorine has a smaller atomic size.
Explanation: As you move towards right of the periodic table, the atomic size decreases. This is because the number of protons is increasing towards the right of the periodic table, which applies a greater inward force on the electrons. that is why the elements on the right of the periodic table have a smaller atomic size when compared to the elements on the left. Since chlorine is on the right side of aluminium, it has a smaller atomic size.
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Mention one real life significance of the covalent bond.​
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it helps in respiration

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MULTIPLE CHOICE QUESTION
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This question will be answered based on general understanding of how a controlled experiment should be:

The answer is: We must make sure we are testing/changing only one variable, and controling others

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A controlled experiment is an experiment in which the independent variable is changed for a particular group called the EXPERIMENTAL group and unchanged for another group called the CONTROL group.

In a controlled experiment, only one variable should be tested while the others should be kept constant in order to have an effective result or outcome. This is the case in this question, the type of music or soil should be unchanged for each plant because the experimenter must make sure that he/she is testing/changing only one variable, and controling others.

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3 years ago
Compare and contrast conduction, convection, and<br> radiation as part of heat energy
Zinaida [17]

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In conduction, heat transfer takes place between objects by direct contact. In convection, the heat transfer takes within the fluid. In radiation, heat transfer occurs through electromagnetic waves without involving particles. The heat transfer takes place due to the difference in temperature.

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Why is the solar system often referred to as the sun’s family ?
snow_tiger [21]

Answer:the suns family is stars think about how many stars are in the sky there are billons and more billions

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