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Mazyrski [523]
3 years ago
8

The energy needed to create bonds between two hydrogen molecules is measured in units called __________

Chemistry
1 answer:
igomit [66]3 years ago
5 0
This is called bond energy, or bond enthalpy, and is measured in units of kilojoules per mole (kJ/mol).
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adam wants to investigate the strengths of different acids and alkalis. He has 2 different acid solutions and 2 different alkali
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Answer:

The strength of an acid or alkali depends on the degree of dissociation of the acid or alkali in water. The degree of dissociation measures the percentage of acid molecules that ionise when dissolved in water. He could use universal indicators or litmus paper for this.

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(See answer for the explanation)

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To start this test, you need to identify the variables it presents. As you may already know, there are independent and dependent variables. Independent variables are those that act on a factor, influencing it to generate a result. In the case of this experiment, the independent variable is the completion of the homework. The dependent variable, in turn, is the factor that receives the influence of the independent variable, in this experiment this variable is the final grade you received in the course.

After that you must select a number of students, give them their homework and ask each student to complete a percentage of that amount. An example of this could be that you select 11 students and ask the first to complete 0% of the homework, the second student must complete 10%, the third 20% and so on, and the 11th student must complete 100% of the homework.

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2 years ago
Need help answering
svp [43]

Answer:

Your answer would be E

Explanation:

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