2 years ago

Which location on the earth receives the most energy from the sun?

Chemistry

1 answer:

TiliK225 [7]2 years ago

3 0

Mainly around the equator, since it receives the most direct sunlight year round.

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A student states that an exothermic chemical reaction can transfer its heat only by convection and conduction. Which disproves t

Over [174]

b is the right answer

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2 years ago

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A volume of 90.0 mLmL of aqueous potassium hydroxide (KOHKOH) was titrated against a standard solution of sulfuric acid (H2SO4H2

Alja [10]

Answer:

0.823 M was the molarity of the KOH solution.

Explanation:

$H_2SO_4+KOH\rightarrow K_2SO_4+2H_2O$ (Neutralization reaction)

To calculate the concentration of base , we use the equation given by neutralization reaction:

$n_1M_1V_1=n_2M_2V_2$

where,

$n_1,M_1\text{ and }V_1$ are the n-factor, molarity and volume of acid which is $H_2SO_4$

$n_2,M_2\text{ and }V_2$ are the n-factor, molarity and volume of base which is KOH.

We are given:

$n_1=2\\M_1=1.50 M\\V_1=24.7 mL\\n_2=1\\M_2=?\\V_2=90.0 mL$

Putting values in above equation, we get:

$2\times \1.50 M\times 24.7 mL=1\times M_2\times 90.0 mL$

$M_2=\frac{2\times 1.50M\times 24.7 mL}{1\times 90.0 mL}=0.823 M$

0.823 M was the molarity of the KOH solution.

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2 years ago

You have a pound of feathers and a pound of lead:

mafiozo [28]

Feathers have more density and less have more mass, feather is super light and a POUND of led isnt

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3 years ago

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__CH4+__CL2> __CCL4+__HCL

tatyana61 [14]

Answer:

CH4+4Cl2->CCl4+4HCl

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3 years ago

Convert 50 m to mm <br> using the method of dimensional analysis

shusha [124]

Answer:

Explanation:

meters has to go on the bottom of the bracket used for conversion

50m [ 1000 mm / 1 m]= 50000 mm The meters cancel

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2 years ago