What does a smaller uncertainty in chemistry mean?

Give one reason why something would have a smaller uncertainty.

A student is preparing to perform a series of calorimetry experiments. She first wishes to determine the calorimeter constant (Ccal) for her coffee cup calorimeter. She pours a 50.0 mL sample of water at 345 K into the calorimeter containing a 50.

K20 ionic or covalent

When a nucleus has too many protons it can be absorb an electron and create

How many atoms of hydrogen (h) are present in 200 molecules of ammonia (nh3) ? express your answer numerically?

What did democritus and aristole think about the composition of matter

Selena is growing geraniums outdoors in a pot. During the day, the temperature in her area averages 22°C (72°F). At night, the temperature has been dropping to around 13°C (55°F). What advice would you give to Selena and why?

How many carbons are in a molecule of hexane?

How does th composition of a mixture of hydrogen and oxygen differ from the composition of a compound containing hydrogen and oxygen?

You are asked to prepare 500 mL 0.250 M acetate buffer at pH 5.00 using only pure acetic acid (MW=60.05 g/mol, pKa=4.76), 3.00 M NaOH, and water. Answer the questions regarding the preparation of the buffer. 1.

Which direction do electrons move in when metals react with non-metals?