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zloy xaker [14]
2 years ago
12

How does this support the theory that whales evolved from walking mammals? in embryo evidence

Chemistry
1 answer:
lesya692 [45]2 years ago
6 0

Answer:

A embryo's, Whales have small back limbs which disappear before birth.

Explanation:

There are lots of evidence in a whale's body and biology suggesting its ancestors lived on land. They have paddle-shaped flippers that encase hand bones with five 'fingers,' and they breathe air and feed their young with their own milk.

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How many electrons each atom gives or takes in KBr
notsponge [240]
K gives 1 electron, and Br takes 1 electron.
4 0
3 years ago
A solid keeps its shape due to which of the following factors? (3 points)
algol [13]

Answer: Attractive forces between particels

Explanation:

8 0
3 years ago
You have 100 g of Pb(NO3)2. How many moles is this?​
topjm [15]

Answer:

0.302 moles

Explanation:

Data given

Mass of Pb(NO₃)₂ = 100 g

Moles of Pb(NO₃)₂ = ?

Solution:

To find mole we have to know about molar mass of Pb(NO₃)₂  

So,

Molar mass of Pb(NO₃)₂  = 207 + 2[14 + 3(16)]

                                           = 207 + 2[14 + 48]

                                           = 207 + 124

Molar mass of Pb(NO₃)₂  = 331 g/mol

Formula used :

                no. of moles = mass in grams / molar mass

Put values in above formula

                   no. of moles = 100 g / 331 g/mol

                   no. of moles = 0.302 moles

no. of moles of  Pb(NO₃)₂ = 0.302 moles

7 0
3 years ago
When energy is transferred from the air to the water, what happens to most of the energy? A. It travels through the water. B. It
BigorU [14]

Answer: Option (A) is the correct answer.

Explanation:

When energy is transferred from the air to the water then energy is absorbed by the water molecules.

This energy travels through one molecule of water to another molecule of water by the process of convection.

Thus, we can conclude that when energy is transferred from the air to the water, then it travels through the water.

3 0
3 years ago
Read 2 more answers
W (3/3) What are the three (3) parts that make up an atom? Please provide name, charge, location, and mass.
lukranit [14]

Answer:

Protons= Positive charge

neutrons= neutral charge

electrons= negative charge

Protons and neutrons make up nucleus

Electron travels around the nucleus

Explanation:

4 0
3 years ago
Read 2 more answers
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