An inefficient appliance costs less to operate than an efficient one, because it takes more energy to do the same job is "False".
<u>Answer:</u> Option B
<u>Explanation:</u>
Energy efficiency is about utilizing less energy consuming appliances than inefficient appliance which consume more energy to do the similar job and support for avoiding high energy bills and unnecessary pollution in the process.
The choice for energy efficiency is "ENERGY STAR LABEL" makes it known to consumers or businesses that a product, home or building is more energy efficient than others on the market.
ENERGY STAR and its partners have managed to save nearly 4 trillion kilowatt-hours of electricity from American families and businesses in 2017 and resulted into 3 billion metric tons of greenhouse gas reductions.
Answer:
2
Explanation:
The subscript on Ammoniumwhich is (NH4) is 2.
Hope this helped!
Answer is 0.7 g
Reason: Given: mass of Fe = 5.60 gWe know that, half life of Fe-53 = t1/2 (Fe-53) = 8.51 min.
Thus, after 25.53 mins, number of half life passed = 25.53/8.51= 3
Now, Amount left after first half life = 5.60g/2 = 2.80 g
Amount left after second half life = 2.80g/2 = 1.40 g
Amount left after third half-life = 1.40g/2 = 0.7g.
Assuming that the 18.8% composition is based on mass,
therefore the mass of Lithium would simply be the product of the fractional
composition and the total dose. That is:
18.8 % = 0.188
mass Lithium = 0.188 * 1.00 g = 0.188 g
Answer:
<span>0.188 g</span>
Answer:
attached below
Explanation:
write the chemical equations for the test and confirmation test
i.e.
i)Chemical equation for main copper test
ii)Chemical equation for copper confirmation test
iii)Chemical equation for main bismuth test
iv) Chemical equation for bismuth confirmation test
attached below are the chemical equations for the test and confirmation test
