Which two subatomic particles make up the nucleus of an atom?

What smell may be a sign that cockroaches are present?

Select all that apply. Where would you expect to find plasma? the atmosphere of stars the atmosphere around lightning bolts the atmosphere around a nuclear explosion the atmosphere around pressurized super-heated water

Which is most likely to get hot fastest when touching a warm surface?

HCl+K2CO3 = KCl+CO2+H2O

What causes a chemical bond to form between atoms? transferring or sharing electrons. spinning or stopping electrons. ejecting or absorbing electrons. destroying or creating electrons.

A covalent chemical bond is one in which outer-shell electrons of two atoms are shared so as to satisfactorily fill the outer electron shells of both atoms. protons and neutrons are shared by two atoms so as to satisfy the requirements of both atoms.

To break a chemical bond, energy must be (1) absorbed (2) destroyed (3) produced (4) released

In an experiment, 132 grams of potassium bromide (KNO3) was dissolved in 100 grams of water at 70 °C in 1 minute.

Would an ice cube melts faster when you put food coloring on it

Use the following half-reactions to design a voltaic cell: Sn4 + (aq) + 2 e - → Sn2 + (aq) Eo = 0.15 V Ag + (aq) + e-→ Ag (s) Eo = 0.80 V What is the overall cell potential? Group of answer choices