Answer:
<em>D is the answer</em>
Explanation:
First of all, conservation is when you conserve resources, or use them less, to be better for the environment. Using a gas powered car does not, as carbon monoxide and other toxic gases are sent into the atmosphere. Using a disposable bag is bad because the plastic is sent away to the environment every time you shop. Leaving water running when you brush your teeth wastes water and is bad for the environment. Recycling aluminium cans and glass bottles is good for the environment, and is conserving resources because the cans and bottles are reused, so instead of wasting, you are reusing.
Please leave brainliest! Thanks mate, and hope this helps!
Answer:
Explanation:
Answer to Armando is an artist who sells prints of his original paintings. ... This problem has been solved! ... Armando wants to create a function P(x). to model his total profit where x is the number of paintings sold
False it’s used in a lot of other countries
Answer:
0.077 M
Explanation:
Molarity is the representation of the solution.
Molarity:
It is amount of solute in moles per liter of solution and represented by M
Formula used for Molarity
M = moles of solute / Liter of solution . . . . . . . . . . (1)
Data Given :
The concentration of half normal (NaCl) saline = 0.45g / 100 g
So,
Volume of Solution = 100 g = 100 mL
Volume of Solution in L = 100 mL / 1000
Volume of Solution = 0.1 L
molar mass of NaCl = 58.44 g/mol
Now to find number of moles of Nacl
no. of moles of NaCl = mass of NaCl / molar mass
no. of moles of NaCl = 0.45g / 58.44 g/mol
no. of moles of NaCl = 0.0077 g
Put values in the eq (1)
M = moles of solute / Liter of solution . . . . . . . . . . (1)
M = 0.0077 g / 0.1 L
M = 0.077 M
So the molarity of half-normal saline solution (0.45% NaCl) = 0.077 M
