________ are tiny building blocks of all matter which combine to form molecules.

Which statement is true for the highest point of a projectile trajectory?

n200080 [17]

The vertical component of velocity is zero

8 0

3 years ago

Ammonia is produced from the reaction of nitrogen and hydrogen according to the following balanced equation: N2 1 g 2 1 3H2 1 g

bekas [8.4K]

Answer:

Mass of NH3 produced = 1217 g or 1.217*10^3 g

Explanation:

Given:

Mass of N2 = 1.003*10^3 g

Mass of H2 = 5.003*10^2 g

To determine:

Maximum mass of NH3 that can be produced when the given amounts of N2 and H2 combine

Calculation:

The chemical reaction corresponding to the production of ammonia is:

$N2(g)+3H2(g)\rightarrow 2NH3(g)$

Based on the reaction stoichiometry:

1 mole of N2 combines with 3 moles of H2 to form 2 moles of NH3

$moles\ of\ N2 = \frac{Mass\ N2}{Molar\ mass N2} = \frac{1.003*10^{3}g }{28g/mol} =35.8\ moles$

$moles\ of\ H2 = \frac{Mass\ H2}{Molar\ mass H2} = \frac{5.003*10^{2}g }{2g/mol} =250\ moles$

Since the moles of N2 is less than that of H2, the limiting reagent will be N2 which would in turn determine the amount of NH3 formed.

Based on the reaction stoichiometry the N2 : NH3 ratio = 1:2

Therefore,

$moles\ of\ NH3\ produced = 2*35.8 = 71.6\ moles\\\\Mass\ of\ NH3\ produced = moles*molar mass = 71.6\ moles*17\ g/mol = 1217 g$

8 0

3 years ago

Please answer all questions on sheet

Setler [38]

Answer:

Yes you always only see one side of the moon

The moon flag always points towards earth

It take 1 month for the moon to orbit the earth

It takes 29.5 days for the flag to rotate once in a full circle

4 0

3 years ago

A student used a sling psychrometer to measure the humidity of the air. If the relative humidity was 65% and the dry bulb temper

nataly862011 [7]

Answer:

3° C

Explanation:

The dew point temperature is the temperature of the air to which the air must be cooled so as to become saturated with the water vapor.

Here it is given that the relative humidity in the air, RH= is 65%

And the dry bulb temperature is T = 10° C

Therefore, the dew bulb temperature is,

$Td= T - \frac{100-RH}{5}$

$Td= 10 - \frac{100-65}{5}$

= 10 - 7

= 3° C

So the dew point temperature is 3° C .

3 0

3 years ago

Molecules illustrating this type of bond include the gases H2, N2, O2, and all the diatomic _____ molecules.

Oksanka [162]

Answer:

nonpolar covalent bond

Explanation:

Covalent molecules made of only one type of atom, like hydrogen gas (H2), are nonpolar because the hydrogen atoms share their electrons equally.

6 0

3 years ago