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Morgarella [4.7K]
3 years ago
7

What is the difference between positive and negative feedback?

Chemistry
1 answer:
oksano4ka [1.4K]3 years ago
5 0
Negative is bad and positive is good
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Based on the periodic table why are be, bg, ca and sr in the same column/group/family?
Lesechka [4]

Answer:

The elements are in the same column/group IIA.

See the explanation below, please.

Explanation:

The elements Calcium, Strontium, Beryllium, Magnesium, Barium and Radio, belong to the group of alkaline earth metals located in group IIA of the periodic table, they require 2 electrons to complete their octet (they have 2 valence electrons). reagents than alkali metals.

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Would you see more living things in a Biome or an Ecosystem?
kicyunya [14]

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A Biome is way bigger than a ecosystem

Explanation:

5 0
2 years ago
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HCI + NaOH --> NaCl + H 20
Vikki [24]

Answer:

option D is correct

Explanation:

no of moles in 3 grams of HCL=3/36=0.08

if 1 mole of HCL require 1 mole of NaOH then 0.08 moles required 0.08 moles of NaOH

mass of 0.08 moles of NaOH=moles*molar mass=0.08*40=3.2 grams

so 3 grams are required in the reaction

6 0
2 years ago
Which is not an indicator for a chemical change?
Anastasy [175]

Answer:

A

Explanation:

Because it does not change entirely.

8 0
3 years ago
(I NEED THIS ANSWERED QUICKLY! I WILL GIVE BRAINLIEST IF YOU'RE ANSWER IS CORRECT! AND MAYBE EXTRA POINTS!)
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C: object does not slide off the pan

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