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TEA [102]
3 years ago
6

An apple is placed on a scale. the scale shows that the apple weighs 1/4 a pound. this demonstrates that the apple has

Chemistry
1 answer:
Murljashka [212]3 years ago
3 0
D  is your answer. nearly everything has atoms so it cant be that 
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Hello, I need help with this question
KIM [24]

Answer:

carnivores organism get their energy from eating other organisms..

6 0
2 years ago
an aqueous solution has a mass of 490 grams containing 8.5×5103 gram of calcium ions. the concentration of calcium ions is in th
Alex777 [14]
There are several various of expressing concentration. For instance, mass percent, volume percent, Molarity, Normality, Molality, etc.

In present case, weight of solute and solvent are given, so it will be convenient to express concentration in terms of mass percent.

Given: weight of solute (Ca2+) = 8500 g
weight of solvent (water) = 490 g.
Therefore, mass of solution = 8500 + 490 = 8990 g

Now, mass percent = \frac{\tect{Weight of solute}}{\text{Weight of solution}} X 100
                               = \frac{\tect{8500}}{\text{8990}} X 100
                               = 94.55 %

Answer: Concentration of calcium ions is in this solution is 94.55 % (w/W)
8 0
3 years ago
Protons are positively charged and repel other protons. Which order particle is found in the nucleus and separates protons so th
jenyasd209 [6]
A neutron, I'm technically not really guessing but I'm kind of guessing because there's only 3 particles in a atom, a proton, neutron and electron, for only protons and neutrons live in the nucleus so be deduction would be neutrons.
4 0
2 years ago
What is the difference between ionic formula and the molecular formula?​
Kaylis [27]

Answer:

Molecular compounds are pure substances formed when atoms are linked together by sharing of electrons while ionic compounds are formed due to the transfer of electrons. 2. ... Molecular compounds are formed between two non-metals while ionic compounds are formed between metals and non-metals.

3 0
2 years ago
Which process is responsible for bending and curving of rock layers
lapo4ka [179]
The answer is deformation of rocks. hope it helps :)
8 0
3 years ago
Read 2 more answers
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