Convert the density 1.98 g/mL to the unit kg/m3.

1980 kg/m3

19.80 kg/m3

19800 kg/m3

0.198 kg/m3

In an exothermic reaction, an increase in temperature favors the formation of products. true or false.

A gas held at constant volume is heated from - 5 degrees C to 50 degrees C, if the initial pressure is 1.0 atm, what is the new pressure the gas exerts? -10.0 atm -0.10 atm 1.21 atm 0.83 atm

Potassium chloride is a white solid used in medicine. There is one atom of potassium for each atom of chlorine. What is its chemical formula? OKCI o Pt, CI K2C1 KCI2

The sun is composed mostly of hydrogen. The mass of the sun is 2.0x10^30 kg, and the mass of a hydrogen atom is 1.67x10^-27 kg. Estimate the number of atoms in the sun.

How many grams in 4.53 moles of MgBr2

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