Chemistry » Page 68

Chemistry

If 65.0 g of nitrogen dioxide is reacted with excess water, calculate the theoretical yield

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Chemistry

Define a polyatomic ion?

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Chemistry

580 grams of boiling water (temperature 100°C, specific heat capacity 4.2 J/K/gram) are poured into an aluminum pan whose mass is 900 grams and initial temperature 24°C (the specific heat capacity of aluminum is 0.9 J/K/gram). After a short time, what is the temperature of the water? °C What simplifying assumptions did you have to make? Assume negligible energy transfer between the surroundings and the system consisting of the pan plus the water. Assume that energy diffuses throughout the pan and water so that all parts reach the same final temperature. Assume that the water temperature hardly changes. Assume the specific heat capacity is nearly constant in this temperature range. t

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Chemistry

Why are noble metals for example Rhodium, Palladium, Platinum, and Iridium largely used in chemical manufacturing as heterogeneous catalyst?

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Chemistry

If displacement is decreasing, then velocity is:

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Chemistry

True or false an example of a theory is Newton's theory of gravity

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Chemistry

What is a molecule with atoms from two or more different elements?

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Chemistry

How do you find the percent composition of CuBr2

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Chemistry

Cuantos moles de co2 tendremos 54.2 gramos de co2

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Chemistry

Which ionic compound is used as a building material?

A. salt

B. limestone

C. magnesium oxide

D. iron oxide

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Chemistry

What is the twisted ladder shape of the DNA called?

3-D model

nucleotides

double helix

single strand

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Chemistry

How many moles of sodium nitrate NaNO3 would be produced from the complete reaction of 253 g sodium chromate Na2CrO4

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Chemistry

The equilibrium constant for the production of carbon dioxide from carbon monoxide and oxygen is kc=2*1011 this means that the reaction mixture at equilibrium is likely to consist of

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Chemistry

Arrange these compounds in order of increasing standard molar entropy at 25°C:

C3H8 (g), C2H4 (g), ZnS (s), and H2O (l).

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Chemistry

A gas has a temperature of 14 degrees C and volume of 4.5 liters. If the temperature is raised to 29 degrees C and the pressure is not changed,

what is the new volume of the gas?

.

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