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olga_2 [115]
3 years ago
12

Help plzzzzzzzzzz ASAP!!!

Chemistry
2 answers:
umka21 [38]3 years ago
8 0
B.) Index of refraction of the second medium is higher
Ksenya-84 [330]3 years ago
3 0
The answer is the second on or B to be precise
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How is stoichiometry used to calculate amount of product from amount of reactant?
Nadusha1986 [10]

Answer:

D. The coefficients give the ratio of mole reactant to moles product.

Explanation:

In stoichiometric calculations, the amount of product formed from reactants can be determined.

  • Using this approach, the number of moles of reactants and products on both sides of the expression must be balanced.
  • As a rule of thumb, the coefficients give the ratio of moles of reactants to moles of products.
  • This is very useful in a number of calculations using the stoichiometric approach.
5 0
3 years ago
Two pieces of iron with the different masses - 500 g and 1000 g - both have 4.5 kJ of energy added to them.
jok3333 [9.3K]

Answer:

1000g

Explanation:because the higher mass takes up heat.

3 0
3 years ago
9. A box is pushed 1.5 m to the right in 5 s. What is the box’s average speed to the nearest hundredth of a m/s? *
poizon [28]

Answer:

s = 0.30 m/s

Explanation:

Given data:

Distance travel = 1.5 m

Time taken = 5 s

Average speed of box = ?

Solution:

s = d/t

s = speed

d = distance

t = time

by putting values,

s = 1.5 m/ 5 s

s = 0.30 m/s

7 0
3 years ago
It has been raining for several days. Overnight, the temperature dropped below the freezing point. Travel is now hazardous due t
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Hurricane, Typhoon, Or Severe Thunderstorm/Storm. The Signs Described show evidence of any of the situations provided.


3 0
4 years ago
in an oversight in the experiment jamie did not add the 4-5 additional drop of 6M JNO3. as result, will the reported number of m
kaheart [24]
The reported number of moles will be too low since the additional amount of oxygen is not included. It may be 6 drops but the molarity of the solution is 6M. this meas that for every ml of the JNO3 solution there is 6 moles of JNO3. In every mole of <span>JNO3 there are 3 moles of oxygen. So in every drop of oxygen there are 18 moles of oxygen. </span>
6 0
3 years ago
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