How many neutrons does element X have if its atomic number is 46 and its mass number is 159

In the balanced chemical reaction shown below, what is the molar ratio of Fe to Al? Fe2O3 (s) + 2Al (s) - -> 2Fe (5) + Al2O3 (5)

Why does more power equal less time

Which of the following can be used to neutralize a sodium hydroxide (NaOH) solution? NaCl NH3 HCl Ca (OH) 2

Explain the answer and how you to round the answer with proper sig figs for the following equation, 4389 / 28.7?

Describe two ways that climate change can degrade soil in 3-4 sentences.

Use the pull-down boxes to specify states such as (aq) or (s). If a box is not needed leave it blank. If no reaction occurs leave all boxes blank and click on "Submit". Use H3O + for hydronium ion.

What can I expect on the asvab

Consider the reaction N2 (g) + O2 (g) ⇌ 2NO (g) If the equilibrium partial pressures of N2, O2, and NO are 0.22, 0.19, and 0.030 atm, respectively, at 2200°C, what is KP?

What is demetri mendeleyev given credit for developing

Acetone used for rinsing glassware Group of answer choices 1. Pour it down the sink where you are rinsing the glassware 2. Collect it and dispose of it in the organic or acetone waste container 3.