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Dennis_Churaev [7]
4 years ago
11

Explain why it is important to read each CHEMLAB and miniLAB before you come to class.

Chemistry
1 answer:
Scorpion4ik [409]4 years ago
6 0
Because your better prepared and get a better understanding of the lab your doing?
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Solve these.. . . . .​
KonstantinChe [14]

Answer:

Please find the ten balanced equations below

Explanation:

According to the question, a balanced equation must contain equal number of atoms on both sides of the equation. To balance an equation, coefficients are used. The following are the balanced equation:

1. C + O2 → CO2 (balanced)

2. 2H2 + O2 → 2H2O (balanced)

3. 2Na + 2H2O → 2NaOH + H2 (balanced)

4. 4Na + O2 → 2Na2O (balanced)

5. 2Na + Cl2 → 2NaCl (balanced)

6. NaOH + HCl → NaCl + H2O (balanced)

7. NaOH + HNO3 → NaNO3 + H2O (balanced)

8. 2NaOH + H2SO4 → Na2SO4 + 2H2O (balanced)

9. Na2CO3 + 2HCl → 2NaCl + H2O + CO2 (balanced)

10. 2NaOH + CO2 → Na2CO3 + H2O (balanced)

7 0
3 years ago
A 230 g sample of a compound contains 136.6 g of carbon, 26.4 g of hydrogen, and 31.8 g of nitrogen. The rest is oxygen. What is
photoshop1234 [79]
If the total amount of the sample is 230g and they give each component of the sample, we add the given amount of grams of each element and subtract the given from 230g.

136.6+26.4+31.8 = 194.8
230-194.8=35.2

That means the rest of oxygen is 35.2g

This is Percent Composition.

The formula to find the percent composition of an element inside a compound is \frac {MolarMass Of Element}{MolarMass Of Compound}*100

Now we implement the variables into the formula to find the percent composition oxygen.

\frac {35.2}{230} *100 =15.30

The answer is <span>15.30% = O</span>
7 0
3 years ago
Draw two amino acids – note the amino group, the carboxyl group and the alpha carbon, circle the water molecule to be removed an
larisa86 [58]

The two Amino Acids drawn are;

                        1) Proline  (Red)

                         2) Histidine (Blue)

The <em>Carboxylic Groups </em>are encircled in Yellow Sphere.

The <em>Amino Groups</em> are encircled in Orange Spheres.

The <em>Alpha carbons</em> are encircled in Pink spheres.

The <em>water molecule</em> evolved is in corresponding colors of its parent molecules.

The<em> peptide bond</em> formed is colored by Green color.

7 0
4 years ago
Which location will experience the greatest amount of weathering
Ivanshal [37]

Answer:

Explanation:

Weathering occurs fastest in hot, wet climates. It occurs very slowly in hot and dry climates.

4 0
3 years ago
Here anwser questions 2 ,4,6 those charts okay I also put how the formula on top solve these problems ! Please help me I geniunu
disa [49]

Answer:

39.5L

Explanation:

4 0
3 years ago
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