3 years ago

Science questions down below

Chemistry

1 answer:

goldenfox [79]3 years ago

4 0

Answer to first is outer covering, second is bacteria are single celled

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An oven that cooks by cycling warm air through the bottom and out the top which heat transfer

koban [17]

Answer:

This is an example of convection

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3 years ago

What are the nine major plates of the lithosphere

artcher [175]

North American plate
Pacific plate
Nazca plate
Antarctic plate
south American plate
African plate
Eurasian plate
indo-austrailian plate

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3 years ago

2. What is the average height in cm for plants in group 2? * 38 cm 56 cm 97 cm 114 cm

Nina [5.8K]

Answer:

76.25cm

Explanation:

38cm + 56cm +97cm +114cm = 305cm

305cm÷4 = 76.25cm

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3 years ago

How many moles of water h2o are present in 75.0 g h2o?

nikklg [1K]

4.17 moles. Good luck! :)

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3 years ago

What is the volume, in mL, of 0.50 moles of ammonia (NH3) at STP?

blagie [28]

For the purpose we will here use the ideal gas law:

p×V=n×R×T

V= ?
n = 0.5 moleT= 273.15 K (at STP)
p= 101.325 kPa (at STP)
R is universal gas constant, and its value is 8.314 J/mol×K

Now when we have all necessary date we can calculate the number of moles:
V=nxRxT/p
V=0.5x8.314x273.15/101.325= 11.2 L = 11200 mL

Answer: D.

5 0

3 years ago