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jonny [76]
3 years ago
12

Which statements accurately describe volume? Check all that apply. Volume is a physical property of an object. Volume is measure

d using a balance. The volume of a solid changes with the shape of the container. One unit of volume is the milliliter. Liquids and solids have constant volumes​
Chemistry
1 answer:
k0ka [10]3 years ago
6 0

Answer:

Liquids and solids have constant volumes

Explanation:

I believe this is the most correct statement

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If a dog has a mass of 21.5kg, what is his mass in the following units?
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Answer: 21.5kg in grams is 21,500 grams

21.5kg in mg is 215,000,00

Explanation:

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irina [24]
6-cumbustion reaction
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For question #12, use the following picture:<br><br> 12. What element is this? How do you know?
labwork [276]

Answer: The element shown in the image is Helium (He).

Explanation: We are given a image of an atom having protons, neutrons and electrons.

Number of protons as shown in image = 2

Number of neutrons as shown in image = 2

Number of electron as shown in image = 2

Atomic number = Number of protons = Number of electrons

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Atomic Mass = Number of protons + Number of neutrons

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Element = ^4_2\textrm{He}

8 0
3 years ago
Read 2 more answers
What element has 4 valence electrons and 5 electron shells?
marta [7]

Answer:  Tin (Sn)

Explanation:  The electron configuration for tin (Sn) is shown in the picture.  It's last electrons are:

5s^2 4d^10 5p^2

The valence electrons are in the 5th electron shell and include 2 each in the 5s and 5p orbitals.

8 0
3 years ago
815 yd to km (need 3 sig fig)
SpyIntel [72]

<u>Answer:</u> The correct answer is 0.745 km

<u>Explanation:</u>

We are given:

A numerical value of 815 yards

To convert this into kilometers, we use the conversion factor:

1 km = 1093.6 yards

Converting the given value into kilometers, we get:

\Rightarrow 815yd\times \frac{1km}{1093.6yd}=0.745km

Hence, the correct answer is 0.745 km

5 0
3 years ago
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