What days did the Catholic Church h celebrate with fireworks

When the following equation is balanced using the smallest possible integers, what is the exponent of H2O in the reaction quotient expression? Al (s) + NaOH (aq) + H2O (l) Na) Al (OH) 4) (aq) + H2 (g)

How does an increase in reactant concentration effect the rate of reaction

For the exothermic reaction 3h2 (g) + n2 (g) →2nh3 (g) which of the following changes could be carried out in such a way as to not cause the reaction to shift either to the left or to the right?

Suppose that a certain fortunate person has a net worth of $79.0 billion ($7.90*1010). If her stock has a good year and gains $3.20 billion (3.20*109) in value, what is her new net worth?

2. Which is the visible part of the electromagnetic spectrum

What is the law of conservation of energy? A) energy can only be destroyed B) energy will always be renewed. C) energy cannot be created of destroyed. D) energy can never change forms.

Most metals are solid at room temperature, malleable, ductile, good conductors of heat and electricity, and react in acids to produce hydrogen gas. which of the properties mentioned is a chemical property? a. are malleable b. reacts with acids c.

Silver tarnishes when it comes into contact with hydrogen sulfide in the air. physical property or chemical property

When a volcanic irruption adds new rock to existing land and forms new islands is it considered destructive?

How many neutrons are in Cesium-130 (Cs) ? 55 75 130 185