Answer:Rubidium and Strontium
Explanation:
Answer:
DNA and RNA are different from their structure, functions, and stabilities. DNA has four nitrogen bases adenine, thymine, cytosine, and guanine and for the RNA instead of thymine, it has uruical. Also, DNA is double-standed and RNA is single stranded which is why RNA can leave the nucleas and DNA can't
Answer:
Check your toilet for leaks. ...
Stop using your toilet as an ashtray or wastebasket. ...
Put a plastic bottle in your toilet tank. ...
Take shorter showers. ...
Install water-saving shower heads or flow restrictors. ...
Take baths. ...
Turn off the water while brushing your teeth. ...
Turn off the water while shaving.
Index fossils are from species that only existed for a short period of time. they are found in rocky layers, Trilobites and Graptolites are index fossils. A guide and zone fossil are used often to determine the age of the rock layer in which it is found.
Answer:
12.01% by mass
Explanation:
Percent by mass is 100 times the mass of solute (ammonia) over the mass of the solution. In molarity, we have the moles of ammonia per liter of solution. There are 6.70moles of NH3 in 1L. Thus, we need to convert the moles of ammonia to grams and the liters of solution to grams:
<em>Mass ammonia - Molar mass: 17.031g/mol-</em>
6.70moles * (17.031g / mol) = 114.1g NH₃
<em>Mass solution:</em>
1L * (1000mL / 1L) = 1000mL * (0.950g/mL) = 950g
Percent by mass:
114.1g NH₃ / 950g * 100 =
<h3>12.01% by mass</h3>