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Allisa [31]
2 years ago
14

I don't know what to do about this now. I like her a lot; I don't want to just give up on this because I see relationship potent

ial with this girl. And I feel she genuinely does enjoy the time she spends with me too.
Chemistry
2 answers:
Umnica [9.8K]2 years ago
4 0

Answer:

Awe ...

Explanation:

TEA [102]2 years ago
3 0
If I were you I would just muster up the courage to ask her out, cause it’s best to know if she likes you back or not and if she says no, it’s gonna hurt but then your gonna move on and know that you didn’t waste anymore time on that person that didn’t like you back
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What is the dropped down number in a chemical formula that tells the number of atoms of a particular element? *
densk [106]
The lack of a number preceding the carbon symbol C and the compound formula CO2 shows that there is one carbon atom and one carbon dioxide molecule. Subscript numbers in chemical formulas represent the number of atoms or molecules immediately preceding the subscript.
3 0
3 years ago
Read 2 more answers
Calculate number of CO2 molecules in 0.250 mol of co2
Anna11 [10]
Carbon's molar mass is 12gm

Oxygen's molar mass is 16gm

So CO2 molar mass is 44gm

Hence 1mol of CO2 contains 44gm
There 1/4mol of CO2 contains 44/4=11gm.

Hope it helps
8 0
3 years ago
How many moles are in 3.24 x 1020 particles of lead? (show work plz)
lesya [120]
<h3>Answer:</h3>

0.000538 mol Pb

<h3>General Formulas and Concepts:</h3>

<u>Math</u>

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

<u>Chemistry</u>

<u>Atomic Structure</u>

  • Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.

<u>Stoichiometry</u>

  • Using Dimensional Analysis
<h3>Explanation:</h3>

<u>Step 1: Define</u>

3.24 × 10²⁰ particles Pb (lead)

<u>Step 2: Identify Conversions</u>

Avogadro's Number

<u>Step 3: Convert</u>

  1. Set up:                                  \displaystyle 3.24 \cdot 10^{20} \ particles \ Pb(\frac{1 \ mol \ Pb}{6.022 \cdot 10^{23} \ particles \ Pb})
  2. Multiply/Divide:                                                                                               \displaystyle 0.000538 \ mol \ Pb

<u>Step 4: Check</u>

<em>Follow sig fig rules and round. We are given 3 sig figs.</em>

Our final answer is in 3 sig figs, no need to round.

7 0
3 years ago
Określ typ tlenku (zasadowy,kwasowy,obojętny,amfoter)<br><br> CuO, FeO,Cr2O3,P4O10,MnO2,CaO,CrO3,SO3
AVprozaik [17]

Answer:

hrhrhr

Explanation:

because h&R blok

6 0
3 years ago
Which statement is right please explain giving brainliest
Anna11 [10]

Answer:

D

Explanation:

Because if I said its 35 degrees outside that has nothing to do with climate maybe if I said its usually 35 degrees in the month of December but just saying what temperature it doesn't tell you anything about climate

Well, the definition of climate is the weather conditions prevailing in an area in general or over a long period so I don't really know

So maybe it is d

7 0
2 years ago
Read 2 more answers
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