Antara gas berikut, yang manakah mengandungi 0.4 mol atom pada suhu dan tekanan bilik? [Isi padu molar gas 24 dm³ mol-¹ pada suhu dan tekanan bilik)

A 4.8 dm³ Ne
C 4.8 dm³ CO2
B 4.8 dm³ O2
D 4.8 dm³ NH3

If a || b and e || f, what is the value of y ?

Look at the bean data from days 4–6. use these data to explain how natural selection changed the number of dark red walking beans over time. writing part

In 1901, thomas edison invented the nickel-iron battery. the following reaction takes place in the battery. fe(s) + 2 nio(oh)(s) + 2 h2o(l) fe(oh)2(s) + 2 ni(oh)2(aq) how many mole of fe(oh)2, is produced when 5.35 mol fe and 7.65 mol nio(oh) react?