A teacher tells you that they have 30 cm3 of sand (volume) in a graduated cylinder. You tell the teacher that this is not accurate since sand has a bunch of air spaces all through it. Create a short procedure for how you could calculate the ACCURATE VOLUME for just the sand, without any air spaces in it.

Is this a single replacement reaction or there is no

City a and city b had two different temperatures on a particular day. on that day, four times the temperature of city a was 8â° c more than 3 times the temperature of city b. the temperature of city a minus twice the temperature of city b was â’3â° c. what was the temperature of city a and city b on that day? city a was 5â° c, and city b was 4â° c. city a was 3â° c, and city b was â’1â° c. city a was 8â° c, and city b was â’3â° c. city a was 5â° c, and city b was â’5â° c.

Brainliesttt me asap! the below reaction can be categorized as more than one type of reaction. which reactions are these, and what are the types of reactions?