False. They are Convection, Conduction, and Radiation.
Answer:
A chemical reaction that gives off heat is most likely to be exothermic.
Answer:
The area of parallelogram can be found by product of its base and height. The calculations are shown below:
Explanation:
We know that,
Area of parallelogram = base × height
assume base to be 21 cm.
Then,
sin 79° =
∴ height = 13 × 0.98 = 12.74
Area of parallelogram = 21 × 12.74
= 267.54
The area of parallelogram is calculated as 267.54 .
Answer:
a. 0.66 atm
Explanation:
Pi = 750 torr = 0.99 atm. Pf = ?
Vi = 400 ml Vf = 600ml
Using PiVi = PfVf
Then 400ml × 0.99atm = Pfatm × 600ml
Solving for Pf, we have,
Pf = (400ml × 0.99atm)/600ml
Pf = 0.66atm
False.
Question:
What makes up matter?
Answer:
<span>Anything that has mass and takes up space.</span>