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Viktor [21]
3 years ago
9

What kinds of constraints do EVA design solutions usually have?

Chemistry
2 answers:
adell [148]3 years ago
8 0
Plssss help me no one is helping me :(
SVETLANKA909090 [29]3 years ago
3 0

Answer:

nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn

Explanation:

hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh

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The density of aluminum is 2.70 g/cm3. What is the mass of a solid piece of aluminum with a volume of 2.50 cm3?
blagie [28]

Answer:

<h2>6.75 g</h2>

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

mass = Density × volume

From the question we have

mass = 2.7 × 2.5

We have the final answer as

<h3>6.75 g</h3>

Hope this helps you

4 0
2 years ago
Alcohol or acid will travel the furthest up the paper chromatography? pls help thanks and explain
d1i1m1o1n [39]

Answer:

True

Explanation:

Yes.

The distance that the molecules move depends on their solubility in the solvent and the size of the molecules. Heavy molecules will travel slower and therefore travel a shorter distance in the time the chromatography is run.

We know from such things as felt tip pens that colourings can be soluble in different solvents. Water soluble felt pens have colours that are - well - water soluble. Permanent felt pens have colours that are insoluble in water but that are soluble in another solvent. This could well be alcohol.

The water soluble colours may also be soluble in alcohol. The solubility in alcohol will be different from the solubility in alcohol, and so the Rf value ( the distance travelled) will also be different.

Because of the complicated shapes of the colours, the colours may not have the same order in the Rf values in the different solvents.

4 0
3 years ago
Please help me which one
mel-nik [20]
Non of the above because protons and neutrons don’t mix with each one there
3 0
2 years ago
A balanced chemical reaction obeys the law of...
Anit [1.1K]

Answer: (C) conservation of matter

Solution: Law of conservation of matter or mass states that' total mass of the reactants should always be equal to the total mass of the product that is the total mass is remained conserved in a chemical reaction.

A balanced chemical equation always follow this law.

For example:

2H_2(g)+O_2(g)\rightarrow 2H_2O(l)

Mass of hydrogen = 1 g/mol

Mass of Oxygen = 16 g/mol

Total mass on the reactants = 2(2×1)+(2×16)= 36g/mol

Total mass on the product side = 2[(2×1) +16] = 36 g/mol

As,

Mass on reactant side = Mass on the product side

Therefore, a balanced chemical reaction follows Law of Conservation of mass.

4 0
3 years ago
Read 2 more answers
In composting, gardeners allow a pile of plant material such as dead leaves to decay. Composting is a form of combustion.
maks197457 [2]

Answer:

This is true

Explanation:

Because it mixes in with the earth making the earth more suitable for gardening and/or farming.

8 0
3 years ago
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