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zvonat [6]
3 years ago
12

HELP PLEASE I GIVE 21 POINTS!!!! +BRAINLIEST!!!!!!!

Chemistry
2 answers:
Maslowich3 years ago
8 0
There was a noise in my closet one night and it creeped me out. It scared me until I told myself that it might not be so scary if I checked it out. When I got to the closet, my heart pounding, I realized that it was just a book that had fallen off the shelf. 
cricket20 [7]3 years ago
7 0
You could write about a fear you may have had as a child, eg. the dark, or underneath the bed, etc...
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Plz help all chemist!
solmaris [256]

Answer:

D. bromine

Explanation:

Highest electronegativity in the period has element closest to the *A group

K Ca Cu Br

6 0
3 years ago
The concentration of hydrogen in soil sample 13 * 10 ^ - 6 * M the soil is tested with a pH meter, what value should the meter r
vovikov84 [41]

Answer:

pH = 4.9

Explanation:

Given data

[H⁺] = 13 × 10⁻⁶ M

The pH is a scale used to determine <em>the acidity or basicity of a solution</em>. The pH is related to the concentration of hydrogen ions through the following expression.

pH = -log [H⁺]

pH = -log 13 × 10⁻⁶

pH = 4.9

Since the pH < 7, the soil is considered to be acid.

6 0
3 years ago
Is it true or false a population is all of the plants and animals that live within a ecosystem
Mars2501 [29]
The correct answer would have to be true
4 0
3 years ago
Read 2 more answers
Select all that apply.
MakcuM [25]

Answer:

A telescope, printing press, and microscope

Explanation:

8 0
3 years ago
I SWEAR THIS IS WAY TOO EASY, WHY AM I THAT STUPID, HELP ME AND ILL MARK U BRAINLIEST
exis [7]

Answer:

i think the first one is gravity and second one is rotation

Explanation:

5 0
3 years ago
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