Answer:
Step-by-step explanation:
6A = 60°
6B = 34°
Answer:
(32-3x) cannot be simplified
Step-by-step explanation:
4.6 moles in 187 grams of magnesium oxide (mgo).
<h3>What is mole explain with example?</h3>
- One mole is defined as the amount of substance containing as many elementary entities (atoms, molecules, ions, electrons, radicals, etc.) as there are atoms in 12 grams of carbon - 12(6. 023×1023).
- The mass of one mole of a substance equals to its relative molecular mass expressed in grams.
- The relative formula mass of a compound is calculated by adding together the relative atomic mass values for all the atoms in its formula.
- Moles are units used to measure substance amount. Chemistry (Single Science) Atomic structure.
To solve ,
number of moles is equals to the mass in grams divided by RFM
RFM=16+24.3=40.3
=187/40.3
=4.6 moles of MgO
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90x+120 is equivalent to 30 (3x+4)
Answer:
y = -2x + 4
Step-by-step explanation:
y = mx + b
(plug in slope)
y = -2x + b
(plug in point they provide)
6 = -2(-1) + b
6 = 2 + b
b = 4
y = -2x + 4
