September 2018 1 25 Report

1 . W jednej z probówek umieszczono roztwór wodorotleku sodu , a w drugiej kwas siarkowy (IV) . Określ , czy za pomoca fenoloftaleiny mozna od siebie odróżnić te roztwory.

2. do trzech probówek z wodą dodano kolejno : tlenkek wapnia , tlekek siarki (IV) i tlenek krzemu. następnie do każdej z nich dodano kilka kropel lakmusu . Zapisz obserwacje oraz sformułuj wniosek z przeprowadzonego doswiadczenia.

3. wyjaśnij , jakie tlenki nazywamy tlekami zasadowymi a jakie kwasowymi .

Podaj PO JEDNYM PRZYKŁADZIE TLEKU Z KAŻDEGO RODZAJU .

4 . Dokończ równania reakcji podanych tleków z woda . Podaj nazwy produktów tych reakcji .

C02 + H20 ----->

Rb2O H20 ----->

Proszę o szybkie rozwiązanie !! .


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CZEŚĆ . ;D Proszę o pomoc ! Nie wiem jak mam rozwiązać sprawdzan z angielskiego i proszę o szybkie rozwiązanie no i poprawne ;p.1. Fill in the missing word/phrase. There is one answer you do not need to use . -fashion parade -art exhibition -top desugner -florist's-bag -street map -furniture-muscles-casual-bottle-chemist'sA.Please stop at the ... and buy some cough syrup.B.Sandra thinks that jeans and T-shirts are fine as ... clothers for around the house but when she goes out she likes to wear something more elegant.C.The models who took part in the ... were really beautiful.D.Did you know that lan's sister is a ... who makes clothes for hollywood stars ?E. You don't need a whole ... of sugar to make a cake !F. Miranda is moving to bigger house and needs more ... .G. I relly loved the sculptures we saw at the .... .H.Mandy bough a beutiful plant at the .... .I.If michael used a ... to find his way around the city , he wouldn't get lost all the time . J . After football practice my ... feel sore .2 . Put the dialogue in order.{ponumeruj dialog }1Good morning .2Here you are.3What size do you need ?4Is there anything I can do for you ?5 Medium , please .6Can I exchange this skirt ? It's too small.3.Fill in the gaps with : a , an , some or any .A.What did you have for lunch ?B. I had ... spaghetti.A. Would you like anything from the kitchen?B. Can you brin me ... apple please ?A.Would you like .. cup of coffee ?B. yes , please .A. Pass the ketchup please .B. There isn't ... left .A.I'm really hungry !B. why don't you have ... banana ? 4. Fill in the gaps with : many , much , a few ot a little .A. We don't have ... time before the game.B. Can Ihave ... sugar in my tea , please ?C. Why did you buy so ... peppers ?D. Sandra will be ... minutes late . E.How ... biscuits did you eat ?F. Would you like ... more milk in your coffee?Bardzo proszę o szybkie i dokładne rozwiązanie :D . DAJĘ NAJ !!!! .
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