Предмет: Химия, автор: boblikkolik

випишіть форму сполукив яких елемент із ступенем окиснення +1 будь ласка

Ответы

Автор ответа: Аноним

Ответ:

І вроді все так должно бути))))

Автор ответа: mineeeexa

Ответ:

Li(літій) Na(натрій) K(калій) rb(рубідій) cs(цезій) fr(Францій)

Объяснение:

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Read the dialogue and choose two False statements.
In the Botanical Garden
Teacher: Dear children, welcome to our botanical garden - one of the most visited places in our city.
Children: Hooray!
Teacher: Today you will have an unusual lesson out of the class. What do you think is the topic of today’s lesson?
Kate: Gardens?
Tim: Plants?
Alex: Insects?
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Kate: Flora and fauna?
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Alex: People are living things too!
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Kate: Yes, and flowers too. And birds are living things too, they grow and reproduce in spring.
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Kate: They become yellow and red in winter because of the lack of sunlight. But, why do pine trees stay green in winter?
Teacher: Good point, Kate! Pine trees are called evergreens because they have needles instead of leaves, that’s why they do not turn yellow and are green all year.
Alex: Look at this unusual flower! It looks as if it is sleeping.
Kate: Yes, it is different from other flowers around. Why is it sleeping?
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Number of correct answers: 2
Evergreens are always green.
Due to chlorophyll leaves are green.
People are living things.
Pine needles fall and turn yellow.
The botanical garden is not a popular place to visit

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