If an atom loses two electrons what charge will it have?

+2

-1

+1

-2

Where is the earth curst thinkest

Scientists carried out an experiment with flowers from plant X and found out that within three minutes of exposure to the sound of bees, the flowers increased the amount of sugar in their nectar by twenty times.

Check all that apply to sugar. does not conduct electricity is an electrolyte forms ions in water is a nonelectrolyte

Which of the following reactions represents an exothermic reaction? A. NH3 (g) + 12.0 kcal → ½N2 (g) + 3/2H2 (g) B. CH4 + 2O2 → CO2 + 2H2O + 212,800 cal C. C + 2S → CS2, ΔH = 27,550 cal D. C (graphite) → C (diamond), ΔH = 0.45 kcal E.

Carbon dioxide is generated through the process of

Sodium (Na) reacts with chlorine gas (Cl2 ) to form sodium chloride (NaCl) as shown in the equation: 2Na + Cl2 → 2NaCl If 4 moles of chlorine gas react, how many moles of sodium will react?

What are transuranium elements properties?

A geologist finds a section of rock that shows was ripple marks. What does it he pr send me or a ripple marks say about the area where the rock formed? A. the rock from rk s in a fast moving stream B.

375centimetercube of a gas has a pressure of 770mmHg. find it's volume if the pressure is reduced to 750mmHg

How did the planets in our solar system form?