A zinc atom loses 3 electrons to become a zinc ion

Which of the following best describes an atom? (1) protons and electrons grouped together in a random pattern (2) protons and electrons grouped together in an alternating pattern (3) a core of protons and neutrons surrounded by electrons (4) a core

3. The density, d of an x-box 1 can be found by using the following formula d = m, where mis the mass of the x-box and v is its volume. What is the density of the x-box that has a mass of 73,430 kilograms and a volume of 7m3?

Give the complete balanced equation for the reaction that occurs when lithium carbonate (Li2CO3) is heated. You do not need to make the subscripts smaller in your answer; just write them out as regular numbers

If you are diving and playing in the waves near a beach and suddenly find that you are being pulled out into the ocean at a relatively quick pace, what current are you most likely trapped in?

How can we evaluate the effectiveness of our action?

Define "Homoglycan" and "Heteroglycan" and give an example of each

If you have 200 grams of iodine how many atoms do you have?

Sea salt is formed by natural evaporation of ocean water and contains 98% sodium chloride. The remaining 2% are natural minerals such as iron and sulfur. Consider a 84.7-g sample of sea salt.

Which element in group 15 is the strongest metallic character?

Can neptune sustain life?