<span>Many life forms consist of a single cell. As well as simple bacteria, there are more complex organisms, known as protoctists. Unlike bacteria, they have complex internal structures, such as nuclei containing organized strands of genetic material called chromosomes. Most are single-celled, but some form colonies, with each cell, usually remaining self-sufficient.
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Prokaryotes are unicellular organisms whose cells lack a nucleus. A nucleus is a dense are in a cell that contains nucleic acids the chemical instructions that direct the cell's activities.
Not sure if this really helps but...here you go!
Mass Spectrometer - is an analytical technique that ionizes chemical species and sorts the ions based on their mass-to-charge ratio. It measures the masses within a sample.
Temperature, humidity,and pressure are basically the same
Answer:
ΔH = -601.9 kJ/ mol Mg
Explanation:
Step 1: Data given
Mass of the solid magnesium sample = 0.2475 grams
The heat capacity of calorimeter = 3024 J/°C
The temperature increases by 2.027 °C
Step 2: Calculate the heat transfer
q = Ccal * ΔT
⇒with q = the heat transfer
⇒with Ccal = the heat capacity of calorimete 3024 J/°C
⇒ΔT = The temperature increases by 2.027 °C
q = 3024 J/°C * 2.027 °C
q = 6129.6 J
Since this is an exothermic reaction, ΔH will be negative
Step 3:Calculate the heat associated with the burning of Mg
Heat = -6129.6 J / 0.2475 grams Mg
Heat = 24766 J/grams = -24.77 kJ /grams Mg
Heat = -24.77 kJ/ grams * 24.3 g/mol
ΔH = -601.9 kJ/ mol Mg
Explanation:
The added greenhouse gases absorb the heat. They then radiate this heat. Some of the heat will head away from the Earth, some of it will be absorbed by another greenhouse gas molecule, and some of it will wind up back at the planet's surface again. With more greenhouse gases, heat will stick around, warming the planet.
