3. An arrangement is shown below.

Chemistry

2 answers:

puteri [66]3 years ago

4 0

the tide is small then normal because the gravitational fore of the sun and moon pull in the same direction

Explanation:

vichka [17]3 years ago

3 0

Your answer is c. The tide is smaller than normal because the gravitational forces of the sun and moon pull in

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People often think bonds store or hold energy. If that is true, should the energy be high or low when a bond forms?

marta [7]

Answer:

The energy should be high.

Explanation:

Bonds do store energy and release it depending if it's endothermic or exothermic. The energy should be low because when a bond forms (endothermic) it releases heat, which helps form bonds. Having a high energy means the bond is absorbing energy, which helps break bonds (endothermic). How this helps!

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3 years ago

Covalent bonds are formed when valence electrons are

mamaluj [8]

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3 years ago

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How do you do stoich

Solnce55 [7]

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4 years ago

How many grams of steam at 100 °C would be required to raise the temperature

Alex777 [14]

The mass of steam required to raise the temperature of water is 3.5 g.

The given parameters;

mass of the benzene, = 47.6
initial temperature of the benzene, = 5.5 ⁰C
final temperature of the benzene = 30 ⁰C

The molar mass of Benzene = 78.11 g/mol

The molar mass of water = 18 g/mol

The number of moles of the Benzene is calculated as follows;

$n = \frac{47.6}{78.11} = 0.61 \ mole$

The mass of steam required is calculated as follows;

heat lost by steam = heat absorbed by benzene

$\frac{m}{18} \times 40.7 \times 10^3 = 47.6(1.63)(30-5.5) \ + \ 0.61 \times 9.87 \times 10^3\\\\2261.11 m = 7921.61\\\\m = \frac{7921.61}{2261.11} \\\\m = 3.5 \ g$