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kherson [118]
3 years ago
12

Using methyl ,phenolphthalein and litmus name an acid

Chemistry
1 answer:
frozen [14]3 years ago
3 0

Answer:

These are two types of indicators which show a solution is either an acid a natural or an alkali solution

Explanation:

Hope this helps :)

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What would the corresponding
ad-work [718]

Answer:

7,9,11

Explanation:

this is because water includes 0H, which would mean that it is more than 6

4 0
1 year ago
Why does the temperature remain constant during melting till all the ice has melted?
GenaCL600 [577]

All the energy goes into melting the ice. Ice and water are <em>at equilibrium</em> during melting, so the temperature does not change.

Once all the ice has melted to water, the temperature will rise.

4 0
3 years ago
Round the following numbers to the number of significant figures indicated:
Kruka [31]
  1. 3.5
  2. 9
  3. 24.7
  4. 8.01
  5. 0.006
  6. 13(1.25×1012=12.65)

Explanation:

Above we have simply looked the condition that where we put decimal point that gives your needed answer after round off.

For example:

we have to make 2 s.f from 345 so we kept decimal after 3 and we rounded off to make 3.5 from 3.45

Hope you got it

7 0
2 years ago
Cells have a ______ ___________, a thin layer that controls what goes in and out of the cell.
Iteru [2.4K]

Answer:

cell membrane

Explanation:

3 0
2 years ago
Read 2 more answers
N the molecule below, how many atoms could make hydrogen bonds with water? the compound has a ch2, double bond, chc, double bond
Anna35 [415]
<h3>Answer:</h3>

                10 Atoms

<h3>Explanation:</h3>

The structure of said compound is sketched according to guide lines provided in statement and is attached below.

Hydrogen Bond Interactions:

                     Hydrogen Bond Interactions are those interactions which are formed between a partial positive hydrogen atom bonded directly to most electronegative atom (i.e. F, O and N) of one molecule and the partial negative most electronegative atom of another molecule.

                      In given structure we are having seven most electronegative oxygen atoms (labelled red) and three partial positive hydrogen atoms (labelled blue) directly attached to most electronegative atom (i.e. oxygen atoms).

                      Therefore, the oxygen atoms will make hydrogen bonds with water's hydrogen atoms and the partial positive hydrogen atoms will make hydrogen bonds with water's oxygen atoms respectively.

3 0
3 years ago
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