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3 years ago

8

Noooo links What is a biome?

2 answers:

Eva8 [605]3 years ago

6 0

The answer is B with the forest and stuff

cricket20 [7]3 years ago

5 0

Answer:

D

Explanation:

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What is the volume of 1.60 grams of O2 gas at STP? (5 points)

tiny-mole [99]

Answer:

<u><em>1.12 liters</em></u>

Explanation:

<u>Calculating number of moles</u>

Molar mass of O₂ = 32 g
n = Given weight / Molar mass
n = 1.6/32
n = 0.05 moles

<u>At STP</u>

One mole of O₂ occupies 22.4 L
Therefore, 0.05 moles will occupy :
22.4 L x 0.05 = <u><em>1.12 L</em></u>

5 0

2 years ago

Read 2 more answers

How do the given animal reproduce

Aliun [14]

Answer:

Which animals????????

3 0

3 years ago

Read 2 more answers

The density of water at 400C is 0.992 g/mL What is the volume of 27.0 g of water at this temperature?

pantera1 [17]

Answer:

Volume of water at this temperature is 27.2 mL

Explanation:

We know that $density=\frac{mass}{volume}$

Here density of water is 0.992 g/mL

Here mass of water is 27.0 g

So $volume=\frac{mass}{density}$

= $\frac{27.0g}{0.992g/mL}$

= 27.2 mL

7 0

3 years ago

The nucleus contains positively charged ___ and neutral ___ and makes up more than 99% of the mass of an atom.

Mashcka [7]

Answer:

ions

Explanation:

atoms because of the charge

5 0

3 years ago

There is a 50 g sample of ra-229. It has a half-life of 4 minutes.how much will be left after 12 minutes? a. 3.13 g b. 6.25 g c.

polet [3.4K]

It's B. 6.25

first divide 50/2

then divide 25/2

after that divide 12.5/2

Then you get 6.25

Hope it helps!

3 0

2 years ago