CHEMISTRY MIDDLE SCHOOL

How does a magnet separate mixtures?

Answers

Answer 1
Answer: It can only do that when  one of the components of the mixture is a magnetic
material.

When you have that situation, you pass the magnet over the mixture ... shaking
the mixture if it's a dry mixture of powders or pieces ... and the magnetic part of
the mixture moves toward the magnet, while the nonmagnetic parts of the mixture
couldn't care less about the magnet and they just stay where they are.
Answer 2
Answer: It will separate when one of the elements found in the mixture is magnetic. This process can't be done in a compound as a compound is chemically bonded!

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Which of these experimental designs could lead to bias?A) Two mice are given the choice between Swiss and American cheese. B) Phil and Bart race down the street to determine who is the fastest. Eliminate C) A car company pays participants to test drive and evaluate their new auto. D) A private company uses a random taste test of three different, unidentified soft drinks.
Whitch of following are the raw materials of photosynthesis

Balance the following reaction:_mg+_o2=_mgo

Answers

It would be 2Mg + O2 = 2MgO

Which metal does not form cations of differing charges? ( Which metal is NOT a transition metal?)A) Na

B) Cu

C) Co

D) Fe

E) Sn

Answers

The metal that does not form cations of differing charges is Sodium (Na).

The transition metals refers to the group of metals which one can find in the middle of a periodic table. Some of the metals that are able to form cations with different charges include:

  • Chronium (Cr)
  • Iron (Fe)
  • Cobalt (Co)
  • Copper (Cu)
  • Tin (Sn) ,
  • Mercury (Hg)
  • Lead (Pb)

It should be noted that Sodium (Na) is a metal metal that does not form cations of differing charges.

Therefore, the correct option is A.

Read related link on:

brainly.com/question/12843347

Answer:Na

Explanation:its not in group 3 to 13 hope this helps god bless

Heating causes an object to DXPENA

Answers

The word is expand.

Carbon burns in the presence of oxygen to give carbon dioxide. Which chemical equation describes this reaction?© A.
carbon + oxygen + carbon dioxide
OB. carbon + oxygen - carbon dioxide
C.
carbon dioxide - carbon + oxygen
O D.
carbon dioxide + carbon - oxygen

Answers

Answer:

od

Explanation:

when burning a chemical compound the lighter element seperates from the stronger one

Answer: D) carbon dioxide + carbon - oxygen

Explanation: In the gas phase, carbon dioxide molecules undergo significant vibrational motions and do not keep a fixed structure. However, in a Coulomb explosion imaging experiment, an instantaneous image of the molecular structure can be deduced. Such an experiment has been performed for carbon dioxide. The result of this experiment, and the conclusion of theoretical calculations based on an ab initio potential energy surface of the molecule, is that none of the molecules in the gas phase are ever exactly linear. This counter-intuitive result is trivially due to the fact that the nuclear motion volume element vanishes for linear geometries. This is so for all molecules (except diatomics!).

What might happen if earth did not rotate on its axis?

Answers

It would be fatal for all.The ones on the side of sun would get everything but the ones farer than the sun wouldn't survive.There would be day forever on one side and night forever on other.

(Fill in the blanks)The movement of water into and out of cells is very _____. Cells need water to ____ properly.

Answers

Answer:

important, function

Explanation:

Hope this helps!
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