Answer:
electron are on the outside of the nucleus and form rings
Explanation:
Answer:
It will make our life easier.
It helps us organize our daily activities.
This helps our work can be done faster.
Answer:
Volumes can have the same volume but different masses if they have different densities. For example, a 10 x 10 x 10 block of lead has the same volume as a 10 x 10 x 10 block of pine wood, but the lead block weighs 22.6 times more than the pine block. Indeed, the density of lead is high enough that the lead block will sink in water, whereas the pine block's density is low enough that the pine block will float in water.
Volume is a measurement, the units are cubic metres or cubic centimetres. Litres = 1000 cm3
Mass is a measurement, the units are grams, kilograms.
^^^^^^^^^^^^^^^^^^
to that answer.
Mass is not weight. it is the amount of matter an object takes up. Therefore, saying that a lead block weights 22.6 times more than the pine block does not answer how an object can have different masses but the same volume. :D
The missing group of choices is as follows:
A. disassemble the equipment.
B. wash their hands.
C. record their observations.
D. clean the lab tables.
Answer:
The correct answer is - B. washing their hands.
Explanation:
Neutralization of an acid involves the reaction of the acid with a strong or week base ( on the basis of acid strength) which leads to the production of salt and water in aqueous solution.
Washing hand acid could be more dangerous as the acid reacts violently with water, however, after the neutralization of acid, there should be normal safety measures which are before leaving the lab one should wash their hand as chemicals used might be toxic or cause harmful effect to an individual.
Thus, the correct answer is - B. washing their hands.
I could only find 7!
- independent variable
- dependent variable
- control group
- experimental group
- constant
- observation
- inference
