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3 years ago

In what era did reptiles become increasingly dominant?

Chemistry

2 answers:

emmainna [20.7K]3 years ago

6 0

Correct answer: B. Paleozoic. I took the test and it was right.

Leni [432]3 years ago

5 0

Palezoic I took the test!!

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Question:

den301095 [7]

Answer: I think it’s 4

Explanation:

8 0

3 years ago

A precipitate is a solid that sometimes forms when two liquids combine. A true B False

r-ruslan [8.4K]

<h2>Question:</h2>

A precipitate is a solid that sometimes forms when two liquids combine.

<h2>Answer:</h2>

A. True 

<h2>Explanation:</h2>

Because the Precipitate it's forms solid when two liquids combine to precipitate.

<h2>#CARRYONLEARNING </h2><h2>#STUDYWELL </h2>

3 0

3 years ago

Read 2 more answers

If one parent has sickle cell anemia and the other parent is a carrier, what is the possibility that their child will have sickl

earnstyle [38]

It’s a 50 50 chance unless one parent has a dominate gene

5 0

3 years ago

A 98.0°C piece of cadmium (c=.850J/g°C) is placed in 150.0g of 37.0°C water. After sitting for a few minutes, both have a temper

Eduardwww [97]

The answer is 19.9 grams cadmium.
Assuming there was no heat leaked from the system, the heat q lost by cadmium would be equal to the heat gained by the water:
heat lost by cadmium = heat gained by the water
-qcadmium = qwater
Since q is equal to mcΔT, we can now calculate for the mass m of the cadmium sample:
-qcadmium = qwater
-(mcadmium)(0.850J/g°C)(38.6°C-98.0°C)) = 150.0g(4.18J/g°C)(38.6°C-37.0°C)
mcadmium = 19.9 grams

3 0

2 years ago

How many molecules of Carbon Dioxide (CO2) are there in 2 CO2?

Dima020 [189]

There are 2 molecules of Carbon dioxide(CO2)

<h3>Further explanation</h3>

Given

Molecules of CO2

Required

The number of molecules

Solution

The coefficient of a molecule shows the number of that molecule, while the subscript after the name of the atom indicates the number of that atom in the molecule

Because there is a coefficient of 2 in front of the CO2 molecule, then the number of CO2 molecules is 2

5 0

2 years ago