How many nitrogen and hydrogen atoms are in these two molecules of ammonia?

2NH3

A. 2 nitrogen and 5 hydrogen

B. 2 nitrogen and 6 hydrogen

C. 6 nitrogen and 6 hydrogen

D. 2 nitrogen and 3 hydrogen

Pressure is inversely related to?

The substances below are listed by increasing specific heat capacity value. Starting at 30.0 °C, they each absorb 100 kJ of thermal energy. Which one do you expect to increase in temperature the least? Cadmium, 0.230 J / (g °C) Sodium, 1.

2. A (n) has different properties than the elements that compose it and is made of substances combined in a specific ratio.

If 100 ml of some pb (no3) 2 solution is mixed with 100 ml of 6.50 x 10-2 m nacl solution, what is the maximum concentration of the pb (no3) 2 solution added if no solid pbcl2 forms? (assume ksp = 2.00 x 10-5 m at this temperature.

3 multicellular no heterotrophic It has a musculoskeletal system. A. Kingdom animalia B. kingdom fungi C. kingdom plantae D. kingdom protista

Which element has an ion that is smaller than an ion of calcium? potassium strontium cesium magnesium

Since particles in a solid are arranged close together in a regular pattern, some can be classified as i think magma not 100% sure A. gradients. B. crystals. C. plasma. D. magma.

Two examples of common items that use chemical change

Give two sources of energy that can cause ocean waves

Chromium, calcium, and potassium are near each other on the periodic table and have some common characteristics but differ in chemical reactivity.