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weqwewe [10]
3 years ago
13

When must scientist conduct controlled experiments ?

Chemistry
1 answer:
iVinArrow [24]3 years ago
8 0
Usually when scientist wants to test whether one compound or one phenotype is related to another phenotype. Then they need to control this variable when conducting experiments.
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what is the difference between a magnesium atom and a magnesium ion? explain the number of protons, neutrons and electrons and t
ira [324]
A magnesium atom is a neutral atom where the number of protons and electrons are the same. A magnesium ion has a positve 2 charge since it will lose two of its electrons when it undergoes ionic bonding. Since it's the same element it will still have the same amount of 12 protons. For isotopes of magnesium, they will have differing amounts of neutrons and thus a difference in the mass number since neutrons have a mass of about 1
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3 years ago
Predict whether each of the following ionic compounds is soluble in water: a.) LiCl d.) K2 ____________________ ________________
IrinaVladis [17]

Answer:

See answer below

Explanation:

a.) Lithium Chloride, LiCl is soluble in water.

b.) Silver Chloride, AgCl is insoluble in water.

c.) Barium Carbonate, BaCO3 is insoluble in water.

d.)Potassium, K2 is soluble in water.

e.) Iron (III) Nitrate Fe(NO3)3 is soluble in water.

  • All nitrates (NO3) are soluble in water.
  • Alkali metals are soluble in water.
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  • Carbonates are generally insoluble in water.
6 0
3 years ago
An object has________when it has been stretched or compressed
Alina [70]

Answer:

Elasticity or Flexibility

Explanation:

The ability of an object to resume its normal shape after being stretched or compressed is called elasticity

4 0
3 years ago
What type of asexual reproduction creates a new organism by growing from the body of the parent organism? PLSSS HELPPP :)
inna [77]

Answer:

Fragmentation

Explanation:

3 0
4 years ago
Read 2 more answers
What does relative abundance mean
fgiga [73]
Relative<span> species </span>abundance<span> is a component of biodiversity and refers to how common or rare a species is </span>relative<span> to other species in a defined location or community. </span>Relative abundance<span> is the percent composition of an organism of a particular kind </span>relative<span> to the total number of organisms in the area.

I don't know if your looking for this exact definition so i'm sorry if i'm wrong

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4 0
3 years ago
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