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Ilia_Sergeevich [38]
3 years ago
13

Hey! need help with chem, multiple choice questions.

Chemistry
1 answer:
ladessa [460]3 years ago
7 0
1. 6 carbon atoms and triple bonding between carbons 2 and 3
2. i think it’s 3 but i may be wrong
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What mass of Ba3(PO4)2 is contained in 1575 mL of a 0.35 M solution of Ba3(PO4)2?
irina [24]

Answer:

= 331.81 g

Explanation:

Molarity is calculated by the formula;

Molarity = Moles/volume in liters

Therefore;

Moles = Molarity ×Volume in liters

          = 0.35 M × 1.575 L

          = 0.55125 Moles

But; Molar mass of Ba3(PO4)2 is 601.93 g/mol

Thus;

Mass = 0.55125 moles × 601.93 g/mol

         <u>= 331.81 g</u>

3 0
3 years ago
Which statement accurately describes nonrenewable energy sources?
suter [353]

Answer:

a resource that cannot be replenished in a short period of time.

Explanation:

Nonrenewable energy sources take thousands to millions of years to replenish. hence the "nonrenewable".

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which two will help you measure how different colors absorb the energy in sunlight is it beaker or thermometer
KATRIN_1 [288]
Beaker does thermometer measures the thermal energy in the air
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In which way are photosynthesis and cellular respiration different?
Lyrx [107]

Answer:

D. Photosynthesis uses carbon dioxide while cellular produces carbon dioxide

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What are three forms of energy that transform into a hot air balloon? ___ to ___ to ___
34kurt

Answer:

Conduction, Convection, and Radiation

Explanation:

Kinetic energy is the energy a body possesses by being in motion. Kinetic energy takes place when the air inside the balloon gets exposed to heat. The hot air rises which will create and fill the shape of the balloon and allows it to move. Heat energy, also known as thermal energy occurs.

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