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Masteriza [31]
3 years ago
12

I WILL GIVE BRAINLIST!!!!!![CM.04] A meteorologist observed satellite images to predict the weather in a city. She predicted two

inches of snow in the city on Monday, four inches on Tuesday and six inches on
Thursday. However, it did not snow as predicted. Which of these could be a reason the meteorologist's predictions were incorrect?
Satellite images do not show the movement of precipitation that will turn to snow.
O Precipitation depends on rain bearing clouds and snowfall is a type of precipitation
O The amount of snowfall depends on the right combination of temperatures and moisture in the air.
O The amount of snowfall can be predicted only one day in advance because sunshine might melt the snow.
Chemistry
1 answer:
weeeeeb [17]3 years ago
3 0

The amount of snowfall depends on the right combination of temperatures and moisture in the air.

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Hydroelectric power plants capture the ______________ of falling water to generate electricity. The falling water turns a wheel
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Answer:

1: energy

2: converts

Kinetic energy is either 3 or 4, those questions are really similar.

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How many liters are equivalent to 645 mililiters
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Answer:

0.645 liters

Explanation:

THE QUESTION IS equivalent 0.645 Liters

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What uses lines of bubbles in a superheated liquid to track particles?
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Is bubble chamber one of your choices?  Bubble chamber sounds like a good fit for the question.
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Which of the following is considered an alternative energy resource?
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B. Biomass

(I guess so cause other ones are already being used)
4 0
3 years ago
How can I balance this equation? TELL ME HOW you did it and all the steps and you will be the brainliest.
lianna [129]

Answer:

3 CH3CH2OH + 4 H2CrO4 + 6 H2SO4 --> 3 CH3COOH + 2 Cr2(SO4)3 + 13 H2O

Explanation:

To balance, start of with the groups that are common on both sides of the reaction equation;

In this case, these are the SO4 groups treating them as single units;

There are 3 on the right side and 1 on the left side, so we put 3 in front of the H2SO4 to balance this first;

Next, deal with the Cr, there are 2 Cr on the right side and 1 on the other side, so we put a 2 in front of the H2CrO4 to balance that;

Thirdly, we notice the C are already balanced as there are 2 on each side so this is fine;

Lastly, we can deal with the O and H;

Bearing in mind the numbers that are in front of the molecules now from prior balancing, there are 9 O and 16 H on the left side and 3 O and 5 H on the right;

7 H2O on the right side would balance the O, but gives us 18 H, which is 2 too many H;

If we were to put 2 in front of the two organic molecules (the ones with C) on either side, we would balance the O by having 6 H2O, but this gives 2 fewer H than necessary;

In order for the H to balance, we need to have 13/2 (or 6.5) H2O, which means we need 3/2 (or 1.5) in front of each organic molecule;

Since, it is not sensible to have 13/2 water molecules or 3/2 organic molecules, we can just multiply everything by 2;

Thus we end up with:

3 CH3CH2OH + 4 H2CrO4 + 6 H2SO4 --> 3 CH3COOH + 2 Cr2(SO4)3 + 13 H2O

Rules of thumb:

- When there are common chemical groups (e.g. SO4) on both sides of a reaction equation, treat them as single units

- Start of with balancing these common groups

- Thereafter, balance the atoms that appear in only one reactant and one product

- Proceed to balance the atoms that appear in more than one reactant or product

- Typically, you should deal with the O and H last

4 0
3 years ago
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