CHEMISTRY HIGH SCHOOL

Complete the balanced equation: Cu(NO3)2 + Na2CO3 > ?

Answers

Answer 1
Answer: I think its CuCO3+NaNO3 but idk if its right 

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A solution that is at equilibrium must be(1) concentrated (3) saturated(2) dilute (4) unsaturated

Answers

Answer:

(3) saturated

Explanation:

Hello,

In this case, a solution that is at equilibrium must be (3) saturated as at the equilibrium, the entire solute is completely dissolved into the solvent, so no leftovers are present. Unsaturated solutions are not at equilibrium since there is a portion of solvent that is not contributing to equilibrium. Concentrated solutions are not at equilibrium since they could have more solution than allowed into the solvent.

Best regards.
A solution that is at equilibrium must be saturated.

What are the 5 areas of chemistry

Answers

The 5 main branches of chemistry are physics, analytical, biochemistry, organic chemistry, and inorganic chemistry.

The _______ elements tend to lose electrons and form positive ions, while the _______ elements tend to gain electrons and form negative ions. A. Nonmetal, metal B. Metal, noble gas C. Metal, nonmetal D. Noble gas, nonmetal

Answers

Answer:

C.

Explanation:

Metals tends to lose electrons and form positive ions, known as cations. Whereas, non-metals tend to gain electrons and form negative ions known as anions.

Answer:

C. Metal, nonmetal

Explanation:

Fill in the blanks

The metal elements tend to lose electrons and form positive ions, while the non-metal elements tend to gain electrons and form negative ions.

What gas is formed when magnesium reacts with hydrochloric acid?

Answers

Hydrogen gas is formed when magnesium reacts with hydrochloric acid.

Which substance cannot be broken down by a chemical change?1) ammonia
2) ethanol
3) propanol
4) zirconium

Answers

Zirconium cannot be broken down by a chemical change, because it is an element. The others are all molecules. Hope ive helped :)

Answer:

Zirconium

Explanation:

This is because if you look it up in the periodic table you cannot break it apart by a chemical.

What is the formula for salt used for the green light in the fireplace

Answers

Hello R2o4!

The formula of salt used for green light is BaCl2
Cheers!
-Blizzard
Other Questions
Which of the following is untrue concerning a reversible reaction?a. All reversible reactions will reach equilibrium. b. The reaction always spends equal time in the forward and reverse direction. c. There is equal processing for the concentration of reactants and products. d. The reaction could spend more time in the reverse direction than in the forward direction.
Air bags, which act as safety devices in cars, contain solid sodium azide. On impact, the sodium azide releasesnitrogen gas, which expands the air bag. The main benefit of using a gas instead of another type is that —A. gas molecules are subject to ionic bondingB. the separation of gas molecules is much greater than the volume they occupyC. gases won’t explode the bag on very hot daysD. gas molecules don’t transfer excess Kinetic Energy
According to the periodic table of the elements, which set of elements has similar properties?A. H,C,IB. He, H, AlC. He, Ne, ArD. Na, Ca, Al
7. Methane, CH, burns in oxygen gas to form water and carbon dioxide. Wequation for this reaction?a. CH4+ O H2O CO2b. CH4+ 40 2H20+ CO2c. CH4 O2 H2O CO2d. CH4+ 202 2H20 CO28. How many atoms are present in 3 moles of chromium?c. 1.80 x 1024 atomsa. 6.02 x 1023 atomsb. 1.80 x 1023 atomsd. 52.00 atoms 9. How many grams of CO2 are in 2.1 mol of the compound?a. 21.0 gc. 66.0 gb. 44.0 gd. 92.4 g