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TiliK225 [7]
2 years ago
13

Which type of severe weather is related to high pressure systems?

Chemistry
2 answers:
olga55 [171]2 years ago
6 0
C. Cuz a tornado uses wind so the pressure must be high of it makes thing fly around.
Burka [1]2 years ago
6 0

Answer:

Heat waves

Explanation:

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If 3.64g of sand is separated from 5.25g of a mixture of salt and sand what is the percentage of sand in the sample
Mashcka [7]
Total weight of the mixture of sand and salt = 5.25 g
Weight of sand separated = 3.64 g
Weight of the salt in the mixture = (5.25 - 3.64) g
                                                   = 1.61 g
Then the percentage of sand in the sample = [(3.64/5.25) * 100] percent
                                                                      = 69.33%
So the percentage of sand in the total mixture of sand and salt is 69.33%.
7 0
3 years ago
How would I go about solving this problem?
kherson [118]
The first thing you need to do with problem of this kind is to write the chemical equation. This would help you in calculations later. First, convert how many moles are there in 1.75g of carbon dioxide. Then, from the chemical equation you will know how many moles of sodium bicarbonate formed with 1 mole of carbon dioxide. Then convert the moles of sodium bicarbonate to grams using the molecular weight of the compound. You now have your answer. 
4 0
3 years ago
During a reaction, the enthalpy of the reactants and the products are not equal. What does this result in?
topjm [15]

Answer:c

Explanation:

5 0
3 years ago
It takes 93.75 mL of a 0.200 M NaOH to neutralize 75.0 mL of an unknown
borishaifa [10]

Answer:

the answer is the second option

5 0
2 years ago
Calculate the specific heat capacity of a piece of ice if 1.30 kg of the wood absorbs 6.75×104 joules of heat, and its temperatu
Gre4nikov [31]

Answer:

c=2.0769\  \frac{J}{g\ \textdegree C}

Explanation:

-Specific heat capacity is given by the formula:

q=mc\bigtriangleup T

Where:

q is the heat gained or loosed by the substance

m is the mass of the substance

c is the specific heat of the substance

\bigtriangleup T is the change in temperature

#We make c the subject of the formula and substitute to solve for it:

q=mc\bigtriangleup T\\\\c=\frac{q}{m\bigtriangleup T}\\\\\bigtriangleup T=(57-32)\textdegree C=25\textdegree C\\\\\therefore c=\frac{6.75\times 10^4J}{1.3\times 1000\ g\times 25\textdegree  C}\\\\=2.0769 \ \frac{J}{g\ \textdegree C}

Hence, the specific heat capacity of the ice is 2.0769 \frac{J}{g\ \textdegree C}

8 0
3 years ago
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