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LenKa [72]
3 years ago
9

Wildfires occur because of... (Choose the 3 correct answers)

Chemistry
2 answers:
attashe74 [19]3 years ago
6 0
Dry trees, shrubs, and other vegetation as well as lightening strikes.
FromTheMoon [43]3 years ago
5 0
All of the above besides “Lots of rain.”
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If m = 45g and V = 15ml, what is D in g/ml?​
ch4aika [34]

Answer:

3 g/mL

Explanation:

We know that the density of an object can be measured by dividing its mass (g) to its volume (mL).

Formula

D=m/v

Given data:

Mass= 45 g

Volume= 15 mL

Now we will put the values in formula:

D=45 g/ 15 mL= 3 g/mL

6 0
3 years ago
Equilibrium is established in a reversible reaction when
avanturin [10]
The correct answer among the options given is B. . When the forward and reverse paths of a change occur at the same rate, <span>the system is in equilibrium specifically in dynamic equilibrium.<span> Dynamic equilibrium is the balance in a process that is continuing. </span></span>
6 0
3 years ago
You are riding a bicycle. If you apply a forward force of 125 N, and you and
GenaCL600 [577]

Answer:

its d

Explanation:

just did it on apex

4 0
3 years ago
Read 2 more answers
What source provides most of the energy consumed in the United States?
umka2103 [35]

Answer:

Fossil fuels

Explanation:

Fossil fuels — natural gas, coal, and petroleum, and — provide most (63 %) of the energy consumed in the United States

The breakdown in 2019 was  

Natural gas 38 %

Coal             24 %

Petroleum      1 %

4 0
3 years ago
A chemist dissolves 716.mg of pure potassium hydroxide in enough water to make up 130.mL of solution. Calculate the pH of the so
Natasha_Volkova [10]

<u>Answer:</u> The pH of the solution is 13.0

<u>Explanation:</u>

To calculate the molarity of solution, we use the equation:

\text{Molarity of the solution}=\frac{\text{Mass of solute}\times 1000}{\text{Molar mass of solute}\times \text{Volume of solution (in mL)}}

Given mass of KOH = 716. mg = 0.716 g    (Conversion factor:  1 g = 1000 mg)

Molar mass of KOH = 56 g/mol

Volume of solution = 130 mL

Putting values in above equation, we get:

\text{Molarity of solution}=\frac{0.716\times 1000}{56g/mol\times 130}\\\\\text{Molarity of solution}=0.098M

1 mole of KOH produces 1 mole of hydroxide ions and 1 mole of potassium ions

  • To calculate hydroxide ion concentration of the solution, we use the equation:

pOH=-\log[OH^-]

We are given:

[tex[[OH^-]=0.098M[/tex]

Putting values in above equation, we get:

pOH=-\log(0.098)\\\\pOH=1.00

To calculate the pH of the solution, we use the equation:

pOH + pH = 14

So,  pH = 14 - 1.00 = 13.0

Hence, the pH of the solution is 13.0

4 0
3 years ago
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