oic. thanks a lot.
y is directly proportional to x2
x is increased by 100%
find the percentage increase in y.
so,
y= k x2
then y= k x2
y=k 4 x2
so 4 x2 is already increased by 100%?
then to find k which is
y=k 4 x2
k= y/ 4 x2
find the percentage increase in y,
so what i...
y is directly proportional to x2.
x is increased by 100%.
Find the percentage increase in y.
so,
y=k x2
y= k (100 + x2)
then i went to find the k,
which is
k= y/ (100 + x2)
so i put back the k which i found into y= k (100 + x2)
which is :
y= y/(100 + x2) (100 + x2)
them im...
does metals has the following?
Qns. high melting point, insoluble in water, conduct electricity in solid and liquid.
may i know what's the physical properties of covalent compound?
do they have low melting point?
does ionic compound has high melting point ?
can somebody correct...
A list of compounds and their formulae are given below. Select those compounds that are IONIC.
(choose all that Apply)
A.)sulfuric acid H2SO4
B.) glucose C6H12O6
C.) sodium ethanoate CH3COONa
D.) magnesium Sulfate MgSO4
E.) Propyl ethanoate CH3COOC3H7
i've chosen C and D. am i...
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A.) gold, sodium chloride, steel. ( there's only one element. no mixture.)
B.) oxygen,iodine , air ( 2 elements. 1 mixture.)
C.) methane, iron(III)chloride, sea-water...
Only 3 statements are correct.
A.) Water is a compound and exist as molecules at rtp.
B.) Magnesium chloride is a molecule but not a compound.
C.) At rtp, nitrogen exist as diatomic molecules.
D.) Rubidium Oxide is a compound but not considered a molecule.
E.) Oxygen gas is classified as a...