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navik [9.2K]
3 years ago
7

I need your help please...

Chemistry
2 answers:
iVinArrow [24]3 years ago
6 0

Answer:

its c and A

Explanation:

NISA [10]3 years ago
3 0
For one it’s d for two it’s c or d u choose
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Please can someone help me??!
svp [43]

I believe the correct order of words should be:

Counterclockwise

Crescent

Full

Half

Faces?

Waxing

Right

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I am not sure on faces, but I don't see any other words from the bank that would fit that description. Hope these are correct and hope I helped!

4 0
3 years ago
To determine the concentration of 20.00 mL of an unknown solution of a monoprotic acid, it is titrated with 0.1093 M sodium hydr
Elanso [62]

Answer:

d) 0.1202 M

Explanation:

Let's consider the neutralization reaction between NaOH and a generic monoprotic acid.

NaOH + HA → NaA + H₂O

The used volume of NaOH is 41.63 mL - 19.63 mL = 22.00 mL. The moles of NaOH are:

22.00 × 10⁻³ L × 0.1093 mol/L = 2.405 × 10⁻³ mol

The molar ratio of NaOH to HA is 1:1. The moles of HA that reacted are 2.405 × 10⁻³ moles.

The molar concentration of HA is:

2.405 × 10⁻³ mol / 20.00 × 10⁻³ L = 0.1202 M

7 0
3 years ago
What is the total number of moles of atoms in one mole of (NH4)2SO4? 1. 10 2. 11 3. 14 4. 15
Neporo4naja [7]

Answer:

4. 15

Explanation:

The given formula is:- (NH_4)_2SO_4

1 mole of the salt contains 2 moles of nitrogen atom, 8 moles of hydrogen, 1 mole of sulfur and 4 moles of oxygen atom as can be seen from the formula.

Thus,

1 mole of salt contains total of 15 moles of the atoms which constitute the salt.

<u>Hence, 4. is the answer.</u>

5 0
3 years ago
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A hot metal plate at 150°C has been placed in air at room temperature. Which event would most likely take place over the next fe
notsponge [240]

Answer:

the air molecules that are surrounding the metal will speed up, and the molecules in the metal will slow down.

8 0
3 years ago
______________ are caused by earth's internal heat sources.
quester [9]

Volcanic eruptions are caused by earth's internal heat sources.

All the other choices are atmospheric or external earth.

4 0
3 years ago
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