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Monica [59]
3 years ago
13

A 20.0-g sample of sugar is dissolved in 59.8 g of water. What is the concentration of the solution?

Chemistry
2 answers:
Romashka-Z-Leto [24]3 years ago
4 0
The correct answer to the question is 25 percent by mass
Lorico [155]3 years ago
3 0
25 percent by Mass.
Hope this helps.
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Balancing chemical equations
kolbaska11 [484]

Answer:

2B2 + 3O2 → 2B2O3

Explanation:

Balance The Equation: B2 + O2 = B2O3

1. Label Each Compound With a Variable

  aB2 + bO2 = cB2O3

2. Create a System of Equations, One Per Element

  B: 2a + 0b = 2c

  O: 0a + 2b = 3c

3. Solve For All Variables (using substitution, gauss elimination, or a calculator)

  a = 2

  b = 3

  c = 2

4. Substitute Coefficients and Verify Result

  2B2 + 3O2 = 2B2O3

      L R

  B: 4 4 ✔️

  O: 6 6 ✔️

hope this helps!

7 0
2 years ago
Which equation is used to help form the combined gas law?
Lady bird [3.3K]

Answer:p1 v1 / T1 = p2v2/T2

Explanation:

8 0
3 years ago
Read 2 more answers
How many valence electrons are in N2O? SeCl2? PBr3?
8090 [49]
Here is the answer for the three of them
<span>N20 = 16 e-
</span><span>SeCl2 =20
</span><span>PBr3 = 26 
Remember that t</span><span>o find the valence electrons in an atom you need to identify what group the element is in. An element in group 1A has 1 valence electron. If the element is in group 2A, then it has two valence electrons.</span>
5 0
3 years ago
Click on the molecules that represent transpiration.
timurjin [86]
Transpiration is the progression of <em>water </em>inside a plant! So, the molecule representing transpiration is going to be good ol' H2O! =)
8 0
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Predict: Will a 1500 kg car moving at the same speed as the tennis ball have
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The car will have more momentum because it has a greater mass. Momentum= mass x velocity therefore if both the objects have the same velocity the object with a greater mass will have more momentum
4 0
3 years ago
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