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natta225 [31]
4 years ago
11

Briefly explain the difference between hard water and soft water.​

Chemistry
1 answer:
melisa1 [442]4 years ago
3 0

Answer:

I HOPE THE ABOVE INFORMATION WILL HELP YOU A LOT.

HAVE A NICE DAY.

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John dalton said that all atoms are identical in size and mass. explain why this is incorrect.
andrew11 [14]
This question can be explained in a variety of ways, but the easiest can be that elements exist, and since each has a different atomic mass, all atoms are not identical in size and mass.
4 0
3 years ago
• How do you change from one unit to another? Be prepared to work a problem or two
alexira [117]
1. write the conversion as a fraction (that equals 1)
2. Multiply it out (leaving all units in the answer)
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3 0
4 years ago
Consider the following reaction: NH4I(s) NH3(g) + HI(g) If a flask maintained at 674 K contains 0.138 moles of NH4I(s) in equili
xz_007 [3.2K]

Answer:

4.08 × 10⁻³

Explanation:

Step 1: Write the balanced reaction at equilibrium

NH₄I(s) ⇄ NH₃(g) + HI(g)

Step 2: Calculate the equilibrium constant

The equilibrium constant (K) is equal to the product of the concentrations of the products raised to their stoichiometric coefficients divided by the product of the concentrations of the reactants raised to their stoichiometric coefficients. Only gases and aqueous species are included.

K = [NH_3] \times [HI] = 4.34 \times 10^{-2}  \times 9.39 \times 10^{-2} = 4.08 \times 10^{-3}

4 0
3 years ago
Emi wants to see if she can melt a marshmallow in the sun. She plans to put the marshmallow in a container that will cause it to
konstantin123 [22]

Answer:

I think emi should put it in a metal container and put it in the direction of the sun cause this will help produce heat as the sun shines on the metal container

3 0
2 years ago
true or false? the radioactive nature of a specific element does not change even if the element is chemically combined with anot
julsineya [31]

Answer: yes

Explanation:

even in combined state, radioactive elements continue to emit radiation spontaneously. For instance RaCl2 is still radioactive because of the radium content of the compound. This is applied positively in radionuclides used to study chemical reactions or uptake of certain elements in then body.

4 0
4 years ago
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