how many joules of energy are necessary to heat a sample of water with a mass of 46.0 grams from 0.0°C to 100.0°C?

2Mg + O2→ 2MgO In the equation above, how many atoms are in the oxygen molecule? F. 2 G. 0 H. 1 J. 3

Which state of matter has a definite volume and takes the shape of its containter

A spherical sample has a mass of 2.813 g it has a diameter of 8.0 mm what is the sphere made of

How many mL of 50% (v/v) alcohol should be mixed with 10% alcohol to obtain 50mL of 35% (v/v) alcohol? Round to the hundredths place.

7. What 2 factors affect the force of gravity?

How many grams of precipitate will be formed when 20.5 mL of 0.800 M CO (NO3) 2 reacts with 27.0 mL of 0.800 M NaOH in the following chemical reaction? CO (NO3) 2 (aq) + 2 NaOH (aq) → CO (OH) 2 (s) + 2 NaNO3 (aq)

How do bacteria get their food? Select all that apply. manufacture it themselves obtain it from decaying organic matter obtain it parasitically from living organisms obtain it from the soil and atmosphere

A test done under standard conditions is referred to as what in chemistry? A. STP B. Control C. Rate Constant D. Kinetics E. None of the above

Ethylene glycol (antifreeze) has a density of 1.11 g/cm3. what is the volume in liters of 3.46 kg of ethylene glycol?

Which type of matter are made of atoms? a. solids only b. solids and liquids only c. plasma only d. solids, liquids, gases and plasma