Answer:
This is a desert because there is little precipitation for plant and animal life to thrive.
Explanation:
Tundra is harsh environment because of its cold temperature, so it's definitely not too hot. Swamp temperature should be not too cold or hot. The rainforest should have abundant plant and animal life.
Desert has very low precipitation and low moisture so that not much water can be found around. Water is vital for any plant or animal. Water also helps regulate temperature and make the fluctuation in the environment extreme. The temperature around the desert can be really high at daylight and low at night.
Answer:
A. Element
B. Compound
C. Compound
D. Element
E. Compound
F. Compound
Explanation:
Elements are what is already on the periodic table and compounds are the substances created when they are combined.
A census is a survey of a complete population and not just a small sample.
You can hold a census of your entire school, your whole city, or the entire state.
A census has to include EVERYONE in the population you want to draw conclusions on. A sample would only include a small number of people from any group. The census must survey all of them.
0.0024 g of Ba(NO₃)₂
Explanation:
First we need to determine the molecular weight of barium nitrate Ba(NO₃)₂
molecular wight of Ba(NO₃)₂ = molecular weight of Ba × number of Ba atoms + molecular weight of N × number of N atoms + molecular weight of O × number of O atoms
molecular wight of Ba(NO₃)₂ = 137 × 1 + 14 × 2 + 16 × 6 = 261 g/mol
number of moles = mass / molecular weight
mass = number of moles × molecular weight
mass of Ba(NO₃)₂ = 0.625 / 261 = 0.0024 g
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moles
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It is important to convert into units of kelvin before using the ideal gas law because
Temperature is the denominator in the combined gas laws and can be derived in the idea gas law to the denominator.
