Is it always possible to identify something as an element compound pure substance or mixture

I will give correct answer Brainiest! A student team is designing an experiment to test the acceleration of a cart acted on by a constant force on both level and sloped surfaces.

A reaction has a theoretical yield of 56.9 g. when the reaction is carried out, 36.6 g of the product is obtained.

If δh = - 70.0 kj and δs = - 0.500 kj/k, the reaction is spontaneous below a certain temperature. calculate that temperature. express your answer numerically in kelvins.

How many atoms are in KNO3?

Which best explains why nuclear reactions release more energy than chemical reactions? The forces holding the nucleus together are much stronger than the forces binding electrons to atoms.

100 level student of the adamawa state university mubi was ask to synthesize ammonia (haber process) in the ratio 3:1 of hydrogen to nitrogen. durin the synthesize, 6.00 mole of nitrogen, 4.20 mole of hydrogen and 0.

Na + leaks through neuron membranes faster than k + because of the properties of the non-gated leak channels. na + leaks through neuron membranes faster than k + because of the properties of the non-gated leak channels. a. True b. False

How many protons does one atom of sulfur have

Which shows the electron configuration for zinc (Zn) ? [Kr]5s24d10 [Kr]5s24d6 [Ar]4s23d9 [Ar]4s23d10

What is the oxidation number of chromium in the ionic compound ammonium dichromate (nh4) 2cr2o7?