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ale4655 [162]
2 years ago
8

HELP ASAP

Chemistry
1 answer:
In-s [12.5K]2 years ago
8 0

Answer:

greenhouse effect is the same as global warming

Explanation:

they both mean warming of the earths surface

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What happens after excitation in spectroscopy.<br>​
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Answer:

When a molecule is excited to a higher state it often ends up in its lowest excited state S1 and then emits radiation.

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3 years ago
Which group will have a charge of +2 when ionized?
inysia [295]

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Alkaline earth metals

Explanation:

Group 2 has 2 valence electrons that they lose when being ionized, thus making  their charge 2+.

5 0
3 years ago
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How many grams of solute are dissolved in 125.0 mL of 5.00 M NaCl (MM = 58.45)?
Nookie1986 [14]

Answer: 36.53g

Explanation:

First we need to find the amount of NaCl that dissolves in 1L of the solution that produced 5M of NaCl

Molarity = 5M

MM of NaCl = 58.45

Molarity = Mass conc (g/L) / MM

Mass conc. (g/L) of NaCl = Molarity x MM

= 5 x 58.45 = 292.25g

Next, we need to find the amount that will dissolve in 125mL(i.e 0.125L)

From the calculations above,

292.25g of NaCl dissolved in 1L

Therefore Xg of NaCl will dissolve in 0.125L of the solution i.e

Xg of NaCl = 292.25 x 0.125 = 36.53g.

Therefore 36.53g of NaCl will dissolve in 125mL of the solution

5 0
3 years ago
Three students use a meterstick with millimeter markings to measure a length of wire. Their measurements are 3 cm, 3.3 cm, and 2
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Do all materials respond to heat in the same way?
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No.

Materials like water get evaporated when heated, but materials like camphor get sublimed that is they directly get converted into gaseous form when heated, while materials like copper gets melted on heating

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