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4 years ago

Which answer below correctly identifies the type of change and the explanation for the heating of copper sulfate pentahydrate?

Physics

1 answer:

dolphi86 [110]4 years ago

6 0

Answer:

chemical change because gas formation was observed along with a color change, which indicated that the copper sulfate pentahydrate was transformed into a different substance

Explanation:

i took a test

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The weight of a 72.0 kg astronaut on the Moon, where g = 1.63 m/s2 is (5 points) Select one: a. 112 N b. 117 N c. 135 N d. 156 N

Hunter-Best [27]

Answer: The weight of a 72.0 kg astronaut on the Moon is 117.36 N.

Explanation:

Mass of the astronaut on the moon , m= 72 kg

Acceleration due to gravity on moon,g = 1.63 $m/s^2$

According to Newton second law of motion: F = ma

This will changes to = Weight = mass × g

$Weight=72 kg\times 1.63m/s^2=117.36 N$

The weight of a 72.0 kg astronaut on the Moon is 117.36 N.

5 0

4 years ago

Read 2 more answers

Define volume charge density <img src="https://tex.z-dn.net/?f=%20%28%20%5C%3A%20%5Crho%20%5C%3A%20%29%20" id="TexFormula1" titl

azamat

Answer:

Volume charge density: When the charge density is throughout the volume of a body, then the charge per unit volume is called volume charge density and it is represented by ρ.

∴ρ=

$\frac{v}{p}$

Hence the unit of ρ is Cm

−3

Example: If a charge q is uniformly distributed in the whole volume of a

sphere of radius R, then p =

$\frac{q}{ \frac{4}{3} } \pi {r}^{3}$ =3q/4πR-3

3 0

2 years ago

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When u wake up in the morning and you see few on the ground, where did it come from, and how did it form?

Pavlova-9 [17]

Answer:

If you mean dew not few, than the cause of dew is condensation.

Explanation:

At night, the air temperature gets lower, causing the water in its vapor state in the air to turn to the liquid state.The water will gather on most solid surfaces, especially grass and other plants. The dew came from the water in the air.

4 0

3 years ago

PLZZ HELP!!!<br> When a star is undergoing nuclear fusion what type of radiation will be found?

zimovet [89]

Answer:

I think the correct answer would be the third option. As the elements around the star begins to emit more and more electromagnetic radiation, the rocky materials are pulled in by the electromagnetic radiation. They are being drawn closer to the star and there would be a very high chance of a nuclear

Explanation:

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3 years ago

A worker kicks a flat object lying on a roof. The object slides up the incline 10.0 m to the apex of the roof, and flies off the

11111nata11111 [884]

Answer:15.20 m

Explanation:

Given

initial velocity $(v_i)=15 m/s$