Class science What is the phase of the Moon when the Moon sits between the Sun and the Earth?

dark side of the Moon towards Earth

Question 21 options:

Gibbous Moon

Crescent Moon

Full Moon

New Moon

1 question only

New moon

Explanation:

The moons bright side always faces the sun, hense causing a new moon. The moon facing the sun, gives us the dark side, the New Moon.

a galvanic cell( aka voltaic cell) and electrolytic cell

explanation:

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- calcium has greater affinity to bond with electron receptors than hydrogen does and hence, it has the ability to replace hydrogen in most of its compounds.

- lithium has 2 valence electrons in the product because it can make only 1 bond with hydrogen. beryllium has 4 valence electrons in the product because it can only make 2 bonds. it has fewer electrons than neon and can react with electron donors. each hydrogen has 2 valence electrons, the same as helium.

- the covalent bond formed between carbon and hydrogen is polar because carbon is more electronegative than hydrogen and it attracts the bonded electron pair closer to itself, thus giving hydrogen a partial positive charge.

- a hydrogen bond is a relatively weak bond that hydrogen atoms make with the electronegative atoms nitrogen, oxygen or fluorine.

so the best choice is a.) 2 calcium (ca) atoms