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Dennis_Churaev [7]
3 years ago
5

Which number represents a basic pH, 4 or 9

Chemistry
2 answers:
jekas [21]3 years ago
8 0
I know 4 is acidic so it has to be 9
DerKrebs [107]3 years ago
6 0

I JUST DID MY TEST AND IT IS 9!!!!!!!! FOR SURE

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Please help ASAP!!!
alisha [4.7K]

Answer:

ye computer ka sawal he .

4 0
2 years ago
Calculate in gramm the mass of 0.1 mole of hydrochloric acid(h=1 ,cl=35.5)​
babunello [35]

Answer:

mass of HCl = 3.65 g

Explanation:

Data Given:

Moles of hydrochloric acid HCl = 0.1 mole

Mass in grams of hydrochloric acid HCl = ?

Solution:

Mole Formula

                  no. of moles = Mass in grams / molar mass

To find Mass in grams rearrange the above Formula

                Mass in grams = no. of moles x molar mass . . . . . . . (1)

Molar mass of HCl = 1 + 35.5 = 36.5 g/mol

Put values in equation 1

              Mass in grams = 0.1 mole x 36.5 g/mol

              Mass in grams = 3.65 g

mass of HCl = 3.65 g

6 0
3 years ago
How is it possible for someone to put an ear to a wall and hear someone in the next room?
kvasek [131]
A spund waves can travel through ALMOST everything.
4 0
2 years ago
Fill in the chart to describe and give examples of physical changes.
frosja888 [35]

Answer:

here are some examples of physical change!!!

Explanation:

-An ice cube melting into water in your drink.

-Freezing water to make ice cubes.

-Boiling water evaporating.

-Hot shower water turning to steam.

-Steam from the shower condensing on a mirror.

8 0
2 years ago
Read 2 more answers
A scientific ________ must have a control, so that the variables that could affect the out come is reduced. A:experiment B:concl
Lostsunrise [7]

Answer:

A.experiment

Explanation:

hope this helps

4 0
2 years ago
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