Which of the following is considered an alternative energy resource?

Chemistry

1 answer:

ELEN [110]3 years ago

4 0

B. Biomass

(I guess so cause other ones are already being used)

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Today, you will observe drops of liquid water and compare them to drops of liquid isopropanol, noting whether either liquid evap

mote1985 [20]

Answer:Noble gases:

are highly reactive.

react only with other gases.

do not appear in the periodic table.

are not very reactive with other elements.

Explanation:Noble gases:

are highly reactive.

react only with other gases.

do not appear in the periodic table.

are not very reactive with other elements.

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2 years ago

Construct a simulated 1H NMR spectrum for 1,2-dichloroethane by dragging and dropping the appropriate splitting pattern into the

e-lub [12.9K]

Answer:

All hydrogens are in same environment. Hence it will not split which shows as singlet for 4 hydrogen

Explanation:

check the attachment for further explanations

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3 years ago

How many moles of o atoms are there in 25.0 g of hno3?

Marta_Voda [28]

HNO3 molar mass = 1 + 14 +3*16 = 63 g/mol

# of moles = mass / molar mass - 25.0 g / 63 g = 0.3968 moles

# of atoms = # of moles * Avogadro number = 0.3968 mol * 6.022 *10^23 atoms/mol = 2.39 * 10^23 atoms

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3 years ago

Suppose a wave of visible light of wavelength equal to 555nm was traveling at a velocity of 55.5 cm/s past a point "A". How long

butalik [34]

Answer:

The answer is " $1 \times 10^{-6}\ s$ "

Explanation:

$v = velocity = 55.5 \ \frac{cm}{s} = 55.5 \times 10^{-2} \ \frac{m}{s}\\\\\lambda = wavelength = 555 \ nm = 555 \times 10^{-9}\ m\\\\\upsilon = frequency\\\\v = \lambda \upsilon \\\\\upsilon = \frac{v}{ \lambda}\\\\$