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mina [271]
2 years ago
11

2.

Chemistry
2 answers:
klemol [59]2 years ago
6 0

Answer:

B. crest

Explanation:

The highest part of a wavelength is called the crest, meanwhile, the lowest part is the trough.

drek231 [11]2 years ago
4 0

Answer:

b

Explanation:

it's highest because it have the most higher wave

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Which of the following is an endothermic reaction?. . A) an explosion. B) condensation of steam. C) freezing water. D) thawing i
Bezzdna [24]
Endothermic reaction : A reaction in which the system absorb energy, usually in the form of heat

the one that is an endothermic reaction is : D. Thawing ice

hope this helps
7 0
2 years ago
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A sample of 25mls of HCL was mixed with 25mls of KOH of the same concentration in a calorimeter. As a result the temperature ros
xxTIMURxx [149]
Ooo that cool good thing I learn from this app
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3 years ago
In a rocket motor fueled with butane, how many kg of liquid oxygen should be provided with each kilogram of butane to provide fo
Travka [436]
<u>Answer</u>

So this is the reaction that happens. 
<span>C4H10 + O2 = CO2 + H2O </span>

<span>Balanced, it is </span>
<span>2C4H10 + 8O2 = 8CO2 + 10H2O </span>

<span>Given 1 kg or 1000 g of butane, use stoichiometry aka factor labeling aka conversions and mole ratios to get to grams of oxygen. </span>

<span>I'll do an example. Let's form water. Hydrogen is diatomic too. </span>
<span>2H2 + O2 = 2H2O </span>

<span>Given 1000 g of Hydrogen, I need to know how many grams of oxygen to use. To convert grams to moles,
I know that 1 mol of H2 equals 2.02 g. Then, for every mole of O2, there are 2 moles of H2. Then converting moles of O2 to grams, I know that one mole of it equals 32 grams. </span>
<span>[1000 g H2] x [1 mol H2/2.02 g H2] x [1 mol O2/2 mol H2] x [32 g O2/1 mol O2] </span>

<span>My answer would be  7.9 kg </span>
3 0
3 years ago
Show Optical Isomerism of Tartaric acid?
Soloha48 [4]

Answer:

sana nakatulong sainyo

8 0
2 years ago
A certain chemical reaction releases 36.2 kJ/g of heat for each gram of reactant consumed. How can you calculate what mass of re
Lilit [14]

Answer:

0.038 g of reactant

Explanation:

Data given:

Heat release for each gram of reactant consumption = 36.2 kJ/g

mass of reactant that release 1360 J of heat = ?

Solution:

As  36.2 kJ of heat release per gram of reactant consumption so first we will convert KJ to J

As we know

1 KJ = 1000 J

So

36.2 kJ = 36.2 x 1000 = 36200 J

So it means that in chemical reaction 36200 J of heat release for each gram of reactant consumed so how much mass of reactant will be consumed if 1360 J heat will release

Apply unity formula

                 36200 J of heat release ≅ 1 gram of reactant

                 1360 J of heat release ≅ X gram of reactant

Do cross multiplication

              X gram of reactant = 1 g x 1360 J / 36200 J

              X gram of reactant = 0.038 g

So 0.038 g of reactant will produce 1360 J of heat.

5 0
3 years ago
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