3 years ago

What is the difference between planets and in the solar system?

1 answer:

7 0

Answer:

Some are large, some are small, some have more gravity then others. Some cant handle human life. Some are very cold some are very hot.

Explanation:

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molecules that resemble fats but contain phosphate functional groups are called: a. steroids. b. polypeptides. c. phospholipids.

Rom4ik [11]

The answer is C. Phospholipids because Lipids mean "Fat"

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3 years ago

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Recall what you know about the solar wind

Tanya [424]

Solar wind is a series of charges particles blasting off the sun as it fuses hydrogen and helium. This is extremely dangerous to humans and the earths magnetic field protects us from it.

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4 years ago

How do you solve this?4. How many km are equal to 1.55 x 10^4 m?

katrin [286]

Answer:

15.5 km

Explanation:

1.55 x 10^4 m means 1.55 x 10000 = 15,500 m

1 km = 1000 meters

To convert to km we divide by 1000

So 15,500/1000

= 15.5 km

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3 years ago

A hot metal is placed in 100.0 g sample of water and it causes the temperature of the water to increase from 25 C to 27 C. How m

Arisa [49]

Answer: $836.8\ J$

Explanation:

Given

Mass of water in the sample is $m=100\ g$

Temperature changes from $25^{\circ}C$ to $27^{\circ}C$

Change in temperature is $\Delta T=27-25=2^{\circ}C\ \text{or}\ 2\ K$

We know, specific heat of water is $c=4.184\ J/g-K$

Heat absorbed is given by

$\Rightarrow Q=mc\Delta T\\\Rightarrow Q=100\times 4.184\times 2\\\Rightarrow Q=836.8\ J$

Thus, water absorbs $836.8\ J$ of heat from hot plate.

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3 years ago

A chemical reaction that has a positive δg is best described as

Alina [70]

Answer:

Explanation:

endergonic

A chemical reaction that has a positive ΔG is correctly described as A) endergonic.

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4 years ago