Is oxygen a alkaline earth metal?

Winnipeg is refilling the pool. how many gallons of water will it take if the pool is 50m by 25m by 1.5m?

The product of the measurements 2.05 cm x 32 cm should be rounded to a. 1 significant figure b. 2 significant figures c. 3 significant figures d. 5 significant figures

Answer the following and round to the correct number of significant figures (don't forget units). a) 0.02123 m + 1.12 m + 0.00123 m = b) 2.3 cm - 1.23 cm + 120 cm = c) 25,430 km - 3,500 km + 200 km = d) (1.21 x 105) x (2.6 x 103) = e) 7.13 mm x 9.

Convert 95 kPa to mmHg

What indicates a chemical reaction has occurred?

For the chemical reaction H2 + CO2 → H2O + CO, the energy contained in the reactants is 394 kJ, and the energy contained in the products is 352 kJ, assuming 1 mol of each substance is present. Which of the following statements is true? A.

Why is particle size important in a heterogeneous catalyst

In a scientific experiment, the one variable that is purposely changed to test a hypothesis is called the manipulated variable. true or false

Consider separate 100.0-g samples of each of the following: nh3, n2o, hcn, n2h4, and hno3. which of the samples has the greatest mass of nitrogen?

How many grams of iodine are needed to prepare 28.6 grams of ICl