Explanation: ACTUAL DEFINITION (Chemistry is the scientific discipline involved with elements and compounds composed of atoms, molecules and ions: their composition, structure, properties, behavior and the changes they undergo during a reaction with other substances.)

8 0

3 years ago

4. Ms. Desabille bought pork meat for P205.00 per kilo , about how much did she pay for 7.5 kilos?

oksian1 [2.3K]

A or C for number 4 and for number 5 it could be C

6 0

3 years ago

A sample of ammonium nitrate, weighing 25.2 g, was added to a 150.0 mL container of H2O at 20.0 °C, and then is thoroughly disso

OLga [1]

Explanation:

It is known that the relation between heat energy, specific heat and change in temperature is as follows.

q = $m \times C \times \Delta T$

where, q = heat released or absorbed

m = mass of substance

C = specific heat

$\Delta T$ = change in temperature

It is given that mass is 25.2 g and it is added to 150 ml container so total mass will be (25.2 g + 150 g) = 175.2 g, $T_{1}$ is $20^{o}C$ , $T_{2}$ is $8.5^{o}C$ , and specific heat of water is 4.184 $J/g ^{o}C$ .