What is the nature of cola, orange water, mineral water and salt water? Acid, neutral or basic?

What is the nature of cola, orange water, mineral water and salt water? Acid, neutral or basic?

Coke, orange water: acid to weak acid
Mineral water: weak alkaline to acidic
Brine: neutral

Xiaoyu wants to compare the density of mineral water, coke and milk. There are a bottle of mineral water, a bottle of coke, a bottle of milk, a large beaker, a paper cup and several identical nails. Please help him solve this problem
(1) Write down the steps of the experiment
(2) Write out the principle and method of comparing the density of three kinds of drinks

Put mineral water into the large beaker, put the empty paper cup into the beaker, and then make a few small irons. Record the scale of the water level in the beaker at this time. Pour coke and milk again and again to see which liquid has the largest scale in the beaker, and the largest one indicates the smallest density

The children go for an outing in five columns. Xiaolan is the third from the front and the fifth from the back. Please help the teacher figure out how many people are going for the outing?

Xiaolan ranks third from the front, and fifth from the back. 3 + 5-1 = 7 (Xiaolan is counted twice, so 1 is subtracted). There are 7 people in each row. If the number of five columns is the same, it is 7x5 = 35. There are 35 people going for an outing

Use purple cabbage water to detect the acidity and alkalinity of various substances: the color of the detected items after dropping into purple cabbage water indicates the alkalinity, soapy water, apple juice and snow water
Yes, please. I'm in urgent need

I just wrote that page, page 28
Soapy water: blue, alkaline
Apple juice: red, acidic
Sprite water: red, acidic
Mineral water: purple, neutral
White vinegar: red, acidic
Milk: purple, neutral
Detergent: blue, alkaline

The following substances in daily life: 1. Milk 2. Sprite beverage 3. Mineral water 4. Normal saline 5. Soybean milk 6. Distilled water
The following substances in daily life: 1. Milk 2. Sprite drink 3. Mineral water 4. Normal saline 5. Soybean milk 6. Iodine 7. Distilled water 8. Ice cubes. Which belongs to solution? Which belongs to pure substance?

Solution: 2 sprite drink, 3 mineral water, 4 normal saline, 6 iodine wine
Pure substance: 7 distilled water, 8 ice

How to say sprite and mineral water in English?
And Coca Cola

Sprite or seven up sprite and seven up
Mineral water
Coca Cola~

A kilogram of apples can squeeze 2 / 3 of the apple juice, and every 2 / 9 of the apple juice can hold a cup. My mother bought 2000 grams of apples, which can squeeze several cups of apple juice

2×2/3÷2/9
=2×2/3×9/2
=6 cups

One kilogram of apple can squeeze 2 / 3 of the apple juice. I bought a few cups of 2 kilogram of apple, and one cup can be filled without 2 / 9 of the apple juice

2 / 3 × 2 / 9 = 6 cups

One kilogram of apples squeeze two-thirds of a liter of apple juice. My mother bought two kilogram of apples. If every two ninths of a liter is filled with a cup, how many cups of apple juice can be squeezed

2 * (2 / 3) / (2 / 9) = 2 * 3 = 6 cups

A kilogram of apples can squeeze two-thirds of a liter of apple juice, and every two ninths of a liter can hold a cup?

2 kg of juice, 2 × 2 / 3 = 4 / 3
So it's 4 / 3 / 9 = 6 cups