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3 years ago

The further away from the sun a planet is, the hotter it is. True False

Chemistry

2 answers:

a_sh-v [17]3 years ago

7 0

Answer:

False

Explanation:

The farther away a planet is, the colder it is.

Nina [5.8K]3 years ago

3 0

the anwser is true

Explanation:

i don't like to really explain but that's the anwser it relies on its orbit

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if 3.26 g is dissolved in enough water to make exactly 323 ml of solution, what is the molar cocentration of nitrate ion g

AnnyKZ [126]

Divide both sides to get 104 and that’s your answer

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3 years ago

How does an object become negatively charged?

Vadim26 [7]

An object becomes negatively charged when it gains electrons, because electrons have a negative charge.

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3 years ago

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An copper mass is heated and placed in a foam cup calorimeter containing 45.0 mL of water at 24.0 degrees celcius. The water rea

Alenkinab [10]

Answer:

= 9,593.1 Joules

Explanation:

Heat absorbed by water is equivalent to heat released by copper.

Heat absorbed is given by;

Q = mcΔT

where m is the mass, c is the specific capacity and ΔT is the change in temperature.

Therefore;

Since dnsity of water is 1 g/mL, and specific heat capacity is 4.18 J/g°C while the change in temperature is (75-24) = 51°C.

Heat absorbed by water = 45 g × 4.18 J/g°C × 51

= 9,593.1 Joules

Therefore, the heat released by copper is 9,593.1 Joules

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4 years ago

What is the mass of 1 mole of lithium?

Korolek [52]

<u>Answer:</u> The mass of 1 mole of lithium is 6.941 grams.

<u>Explanation:</u>

To calculate the mass of a compound or element, we use the formula used to calculate the number of moles:

$\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}$

Where,

Number of moles of lithium = 1 mole

Given mass of lithium = ? g

Molar mass of lithium = 6.941 g/mol

Putting value in above equation, we get:

$1mole=\frac{\text{Given mass}}{6.941g/mol}\\\\\text{Mass of lithium}=6.941g$

Hence, the mass of 1 mole of lithium is 6.941 grams.

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3 years ago

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If 20. milliliters of 1.0 M HCl was used to completely neutralize 40. milliliters of an NaOH solution, what was the molarity of

olchik [2.2K]

Answer:

a)0.50

Explanation:

took one for the team :

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3 years ago