1. put goggles on
2.but gloves on
3.put a lab coat on
Answer:
i need brainliest
Explanation:
To mark the upper fixed point, the thermometer is placed in a hypsometer containing water as shown in the figure. The bulb of the thermometer should be outside the water. When the mercury level becomes stationary at a temperature of steam, the level is marked, which represents the upper fixed point of the thermometer.
Answer:
I think it may be C because Newton's second law of motion states that the acceleration of an object equals the net force acting on the object divided by the object's mass.
There's also a possibility of B as well because the Law of force and acceleration but im not sure
Answer:
42
Explanation:
Relative mass = number of protons + number of neutrons
Relative mass = 20 + 22
Relative mass = 42
So answer is Ncl3
covalent bond = Non metal + Non Metal
so in our all four options we just have Ncl3 which is non metal
Here is the list of metal and non metal