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just olya [345]
3 years ago
12

FREE BRAINLIEST IF CORRECT

Chemistry
2 answers:
Veronika [31]3 years ago
8 0

Answer:

Reflection.

Explanation:

An echo is an example of wave reflection. Reflection occurs when waves bounce back from a surface they cannot pass through.

Hope this helps

tangare [24]3 years ago
6 0

Answer:

reflection because they reflect back for the animals to know what is happening

Explanation:

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State with reasons, whether sulphur dioxide is acting as an oxidizing agent or a reducing agent in each of the following reactio
evablogger [386]

Answer:

A) oxidizing agent is SO2

B) NaClO is the oxidizing agent

Explanation:

A) This is a redox reaction in which oxidation and reduction occur simultaneously.

Thus, in 2H2S(g) + SO2(g) -> 2H2O(l) + 3S(s);

H2S is reduced as follows;

H2S → S + 2H+ + 2e−

We can see that SO2 has been reduced while H2S gets oxidized since it has changed state from - 2 to 0 . Thus sulphur dioxide is the oxidizing agent.

B) SO2(g) + H2O(l) + NaClO(aq) -> NaCl(aq) + H2SO4(aq)

In this, SO2 undergoes oxidation and NaClO is the oxidizing agent

4 0
3 years ago
The reaction rate between reactants Z and Y is proportional to the cube of [Z]. What is the rate law for this reaction?
nexus9112 [7]
Base on the problem given, it shows that the rate law for this reaction is directly proportional. The relationship between the reactants Z and Y that is proportional to the cube of [Z], it shows the concentrations of reactants is expressed by the rate law. 
5 0
4 years ago
Read 2 more answers
How can food labels be used to choose a healthful choice?
Viefleur [7K]
Food labels can tell someone how nutrient-dense a food is. It can show calories, fat, and others. Hope that helps.
8 0
3 years ago
What is wrong with the notation 1s22s22p63s23p63d104s24p2 for germanium (atomic number 32)?
Vaselesa [24]
<span>The notation is not written in the correct order as the 4s subshell should appear before the 3d subshell.
</span>The correct order in an electron configuration would be: 
1s , 2s , 2p , 3s , 3p , 4s , 3d , 4p , 5s , 4d , 5p , 6s , 4f , 5d , 6p ,..
So, for germanium the electronic configuration should be;
1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p² 



3 0
3 years ago
The mass of an erlenmeyer flask is 85.135 g. after 10.00 ml of water is added to the flask, the mass of the flask and the water
BARSIC [14]
Subtracting the mass of (flask+water) from the empty flask gives:
95.023 g - 85.135 g = 9.888 grams of water
Dividing this by the given volume of 10.00 mL water gives:
9.888 grams of water / 10.00 mL of water = 0.9888 g/mL of water
Therefore, based on this sample, the density of water is 0.9888 g/mL, which is close to the usually accepted approximation of 1 g/mL.
4 0
3 years ago
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