How many oxygen molecules should be added to the reactants side to obey the law of conservation of matter?

A

four

one

three

D)

two

Noble gases tend to have what oxidation number Question options: +1 +2 -1 0

What are tidal conditions in science terms

A 45.30 g sample of solid mercury is initially at - 59.00°C. If the sample is heated at constant pressure ( = 1 atm), kJ of heat are needed to raise the temperature of the sample to 30.00°C.

Sara's new baby brother is 0.54 meters long and currently weighs 4.1 kg. The doctor said the baby should gain about one hundred thirty-six grams per week. At that rate, calculate how many TOTAL kilograms he weighs in 3 months.

Which statement best summarizes the importance of Ernest Rutherford's gold foil experiment?

Read the following passage: The movement of tectonic plates buries a rock deep inside Earth. Intense heat and pressure change the mineral composition of the rock and transform it into Rock A.

What is a change which forms one or more new substances?

Which changes occur as a cadmium atom, Cd, becomes a cadmium ion, Cd2+? (1) The Cd atom gains two electrons and its radius decreases. (2) The Cd atom gains two electrons and its radius increases.

Explain Charles law

2 H2 + O2 → 2 H2O What is the product of this chemical reaction