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victus00 [196]
2 years ago
6

If the volume of an object increases but the mass stays the same, which will happen to the density?

Chemistry
2 answers:
Reil [10]2 years ago
8 0

Answer: density will decrease.

Explanation:

Density is defined as the mass contained per unit volume.

\rho=\frac{m}{V}

where ,

\rho= Density of the object

m= Mass of object

v= volume of the object

As density is inversely proportional to volume, if volume of an object increases, the density of the object decreases when mass remains the same.

Thus the density of the object decreases if the volume of an object increases but the mass stays the same.

nikklg [1K]2 years ago
5 0
We all know, Density = Mass/ volume. When volume increases and the mass remains the same , the density will decrease considerably.
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Why does electronegativity increase as you move across the periodic table
Scrat [10]

Answer:

moving across te periodic table electronegativity increases.

Explanation:

as we move across a period the effective nuclear charge increases as the number of protons in nucleus increases. due to increase in effective nuclear charge electronegativity increases

5 0
3 years ago
Given the following unbalanced equation:
Lorico [155]
<h3>Answer:</h3>

8.01 mol MgO

<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>

  • Moles
  • Compounds

<u>Stoichiometry</u>

  • Using Dimensional Analysis
  • Analyzing Reactions RxN
<h3>Explanation:</h3>

<u>Step 1: Define</u>

[RxN - Unbalanced] Mg + O₂ → MgO

[RxN - Balanced] 2Mg + O₂ → 2MgO

[Given] 8.01 moles Mg

[Solve] moles MgO

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

[RxN] 2 mol Mg → 2 mol MgO

<u>Step 3: Stoich</u>

  1. [DA] Set up:                                                                                                       \displaystyle 8.01 \ mol \ Mg(\frac{2 \ mol \ MgO}{2 \ mol \ Mg})
  2. [DA] Multiply/Divide [Cancel out units]:                                                          \displaystyle 8.01 \ mol \ MgO
3 0
2 years ago
Help would be much appreciated, I'm being timed<br> I'll mark brainliest !!
Vitek1552 [10]
Group 17

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7 0
3 years ago
At sea level the average heigh of mercury in barometer is
liubo4ka [24]
Although 1013.25 mb (760 mm Hg) is considered to be the standard atmospheric pressure at sea level, it does not mean that the pressure at this level has this value, actually this being 1011 mb.
4 0
3 years ago
If the actual yield of a reaction is 37.6 g while the theoretical yield is 112.8 g what is the percent yield
Zigmanuir [339]
<h2>Hello!</h2>

The answer is:

The percent yield of the reaction is 32.45%

<h2>Why?</h2>

To calculate the percent yield, we have to consider the theoretical yield and the actual yield. The theoretical yield as its name says is the yield expected, however, many times the difference between the theoretical yield and the actual yield is notorious.

We are given that:

ActualYield=37.6g\\TheoreticalYield=112.8g

Now, to calculate the percent yield, we need to divide the actual yield by the theoretical and multiply it by 100.

So, calculating we have:

PercentYield=\frac{ActualYield}{TheoreticalYield}*100\\\\PercentYield=\frac{37.6g}{112.8g}*100=0.3245*100=32.45(percent)

Hence, we have that the percent yield of the reaction is 32.45%.

Have a nice day!

8 0
3 years ago
Read 2 more answers
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