Blood, transports oxygen, removes waste materials, and carries nutrient to the body.
The option in “the mass of 1me of carbon equals the mass of 1 mole of boron atoms” is false since
Mass=molesx molar mass
And the molar masses of these two elements are different so their masses aren’t equal
Answer:
138g/mol
Explanation:
K₂CO₃ is also known as potassium carbonate. It has a molar mass of around 138.21 g/mol (138.2055 g/mol to be exact).
Answer:
Moles = mass(m) / Molar mass (M)
A. 1.24g of Zn
m = 1.24g
M = 65.4 g/mol
moles of Zn = 1.24g/ 65.4g/mol
= 0.01896mol
B. 28.1 g Ar
m = 28.1g
M(Ar) = 39.9g/mol
moles of Ar = 28.1g/39.9g/mol
= 0.7043 mol
C. 84.0 g Ta
m = 84.0g
M(Ta) = 181g/mol
moles of Ta = 84.0g/181g/mol
= 0.4641 mol
D. 2.29x10^-2 g Li
m = 2.29x10^-2 g
M(Li) = 6.9g/mol
moles of Li = 2.29x10^-2 g / 6.9g/mol
= 0.0033 mol
Hope this helps
Ways to conserve water may inclue:
<span>- turning off the water while brushing your teeth.
</span><span>- turning off the water while washing your hand.
</span>- d<span>on’t run the dishwasher or washing machine until it’s full.
- </span><span> use less electricity.
- t</span><span>ake shorter showers
- shower instead of taking a bath
- use a bucket and a sponge to clean your car
- reuse our rain water :)</span>
