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Marizza181 [45]
2 years ago
10

1. Differentiate Physical and chemical changes of matter?

Chemistry
1 answer:
hram777 [196]2 years ago
4 0
In a physical change the appearance or form of the matter changes but the kind of matter in the substance does not. However in a chemical change, the kind of matter changes and at least one new substance with new properties is formed.
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Write the balanced chemical equation for the dissociation reaction of thiosulfuric acid.
mafiozo [28]

Answer:

f(x)=3x^2

Explanation:

5 0
3 years ago
Please help with this question​
Anastasy [175]

Answer:

215 amu

Explanation:

In the reactants:

There is 1 iron atom, 3 chlorine atoms, 6 hydrogen atoms and 3 oxygen atoms:

  • Fe: 56 × 1 = 56
  • Cl: 35 × 3 = 105
  • H: 1 × 6 = 6
  • O: 16 × 3 = 48

56 + 105 + 6 + 48 = 215 amu

Hope this helps!

8 0
2 years ago
Ocean water contains 3.5% NaCl by mass. How many grams of sodium chloride can be obtained from 750 g of seawater
Masteriza [31]

26.25g

Explanation:

Given parameters:

Percentage of NaCl in ocean water = 3.5%

Mass of given seawater = 750g

Unknown:

Mass of NaCl in the seawater = ?

Solution:

  This is a simple percentage problem:

We have been given that ocean water contains 3.5% of NaCl;

 Therefore;

Mass of NaCl in seawater = Percentage of NaCl in ocean water x Mass of seawater

Mass of NaCl in seawater = \frac{3.5}{100} x 750g = 26.25g

Learn more:

Percentage brainly.com/question/2917248

#learnwithBrainly

3 0
3 years ago
Which of the following explains why there are so many differences in the properties of peptides and proteins?
Brrunno [24]
I think the answer is a). There are 20 kinds of amino acid can form peptides and proteins. There are many possible combinations. And there are also different folding forms and structure that can lead differences in properties.
5 0
3 years ago
Miller's classic experiment demonstrated that a discharge of sparks through a mixture of gases could result in the formation of
Diano4ka-milaya [45]

Answer:

Oxygen

Explanation:

According to my research on Stanley Millers Experiment, I can say that based on the information provided within the question Miller did not use Oxygen as one of the gases in his experiment. On his 1953 experiment the gases used were methane, ammonia, and hydrogen

I hope this answered your question. If you have any more questions feel free to ask away at Brainly.

8 0
3 years ago
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