When two hydrogens and an oxygen share electrons via covalent bonds, a water molecule is formed. An example of a simple chemical reaction is the breaking down of hydrogen peroxide molecules, each of which consists of two hydrogen atoms bonded to two oxygen atoms (H2O2).
Answer:
The United Nations is an international organization founded in 1945 after the Second World War by 51 countries committed to maintaining international peace and security, developing friendly relations among nations and promoting social progress, better living standards and human rights.
The UN was formed by 51 countries in order to encourage resolution of international conflicts without war and to form policies on international issues. The UN Charter sets out four main purposes: Maintaining worldwide peace and security. Developing relations among nations.
Both forming images when placed in their respective places best describes Becquerel’s experiments.
<h3>What is Becquerel’s experiment?</h3>
This was conducted by Henri Becquerel in which he sought to know how uranium salts are affected by light.
He discovered that the salts emits a penetrating radiation and formed an image in the presence of light but didn't form any in darkness.
Read more about Becquerel’s experiment here brainly.com/question/27584302
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I’m not too sure, but I think the answer is ‘waxing crescent’. I hope it’s right.
Answer:
Use your curtains. ...
Use timers on your central heating. ...
Move your sofa. ...
Maximise your insulation. ...
Wrap up warm. ...
Turn down the dial. ...
Block out the draughts. ...
Install thermostatic radiator valves.