1. May sakit ang iyong nanay pero gusto mo sanang manood ng TV. An ang gagawin mo?
2. Hinihikayat ka ng mga kaibigan mo na huwag isali sa laro minyo ang
kapitbahay ninyong may kapansanan. Ano ang gagawin mo?
3. Napapansin mo na laging ikaw na lamang ang tinawa nyong
teacher para mag-recite. Alam mo na gusto rin ng iba mong katawe
ang mag-recite. Ano ang gagawin mo?
4. Alam mo na sa tuwing nakakakita ka ng may kapansanan ay dapat
nagbibigay-daan upang sila ang mauna sa pilahan. Ngunit ang isa mang
kaklase ay ayaw pumayag dahil nauna raw siya sa pila sa canteen
Aino
ang gagawin mo?
5. Madalas kinukutya ang isa mong kaibigan ng iba mo pang kaibigan
Alam mong hindi ito mabuti. Ano ang gagawin mo?​

- 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

  the   balanced   equation   for   reaction of   ca metal   with   o2 to   produce   cao   is as below

2 ca+ o2→ 2 cao2

  explanation

the reaction is   balanced     since the   number of atoms   in reactant side is   equal to   number of atoms   in   product side.   for   example   they   are 2   atom of   ca in   reactant   side   and   2   atoms of ca   in   the product side.

  the   process   is a   meet the   requirement   of   redox   reaction because :     calcium   is   oxidized   from   oxidation state 0   to 2+   while   oxygen   is reduced from   oxidation   state   0   to 2-