What is true about energy in an ordinary chemical reaction? Energy is

created during the reaction.

destroyed if there is an explosion.

not created or destroyed.

used up by the reaction.

Which of the following elements is NOT a transition metal? a. Copper c. Sodium b. Chromium d. Iron

Which element in group 17 is least likely to lose an electron

Calculate the concentration in g/L when 250 grams of sodium chloride is dissolved in 1.5 L of water.

The tendency of an element to react is closely related to

Object a has a mass of 3,600 kilograms. Object B has a mass of 600 kilograms. Object B has a mass of 600 kilograms. Both objects were placed on different planets so that their weights are equal.

Mg3 (Si2O5) 2 (OH) 2 There are. 0893 moles of magnesium how many moles of silicon are there in the sample?

The volume of a gas is reduced from 4 L to 0.5 L while the temperature is held constant. How does the gas pressure change? It increases by a factor of two. It increases by a factor of eight. It decreases by a factor of eight.

Write the complete balanced equation for the decomposition of sodium chloride (NaCl)

What is the term for the different phases water can take?

The amazing successes of science are because scientists have followed the rules of science True or false