CHEMISTRY HIGH SCHOOL

What tool can be used to measure the volume of a liquid to one decimal place?

Answers

Answer 1
Answer: graduated cylinder could be the answer u are loking for
Answer 2
Answer: im guessing a ruler. Because it can help with the lengths that you need to be finding.

Related Questions

Name two metals that do not always lose the same number of electrons
James is preparing three solutions of salt water. Each of the solutions has the same amount of water in the beaker and a different amounts of salt. In the first beaker, there is one scoop of salt in the beaker. The second beaker has two scoops of salt. The third beaker has three scoops of salt. Which of the beakers is the most concentrated solution?
Which of these pairs of elements have the same number of valence electrons phosphorus (P) and chlorine (Cl) beryllium (Be) and calcium (Ca) chlorine (Cl) and helium (He) oxygen (O) and carbon (C)
A few pieces of dry ice, CO2(s), at -78°C are placed in a flask that contains air at 21°C. The flask is sealed by placing an uninflated balloon over the mouth of the flask. As the balloon inflates, the dry ice disappears and no liquid is observed in the flask.State the direction of heat flow that occurs between the dry ice and the air in the flask. Write the name of the process that occurs as the dry ice undergoes a phase change in the flask. [1]Compare the entropy of the CO2 molecules in the dry ice to the entropy of the CO2 molecules in the inflated balloon.
Trisha is learning how to do a first-aid procedure known as CPR. She is practicing using a mannequin, or a model of the top half of the human body.What is one limitation of a CPR mannequin?A. It is not possible to press down on the chest of a CPR mannequin.B. It is not possible to breathe into the mouth a CPR mannequin.C. It is not possible to check for a real pulse on a CPR mannequin.D. It is not possible to lay a CPR mannequin on the floor.

The difference in the direction is caused by the ______________.Please help!

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What don’t understand question

Which will cause a decrease in gas pressure in a closed containerA) Reducing the volume
B) Adding more gas 
C) Lowering the temperature

Answers

By lowering the temps, there is a decrease in the pressure inside. so C. 

Answer: C, Lowering the temperature

Explanation: Gradpoint

The element in Period 4 and Group 1 of the Periodic Table would be classified as aA. metal
B. metalloid
C. nonmetal
D. noble gas

Answers

The element in period 4 and group 1 of periodic table is potassium which is a metal.

How do metallic properties vary in periodic table?

An element is said to possess metallic properties if it has 1,2,3 electrons in its valence shell as these number of electrons can be easily removed by supplying less amount of energy .

Elements present in group 1,2,3 have 1,2,3 valence electrons respectively.Hence, these elements are metals and  it is a characteristic property of metals to easily loose electrons.

Hence group 1, 2  are metals which comprises the s-block  of the periodic table.Metallic properties increases  down the group as distance between valence electrons and nucleus increases due to which they can be easily removed.

Metallic propertiesdecrease along  a period as electrons are added to same shell and hence cannot be easily removed.

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K. Pottasium is in period 4 and group 1. It would be classified as an Alkali metal, and its a metal! 
A.

What is the atomic number, icon, mass of potassium?

This should be EASY!

Answers

Answer:

19, K, 39.098

Explanation:

Potassium is a chemical element with symbol K and atomic number 19.

Atomic Mass: 39.098u

The process that ice on mount Everest goes through when heated from 10 degree f to 305 kelvin.

Answers

water melts at 32 F and boils at 212 F
if we change these values into Kelvin then
melting point of water is 273.15 K and boiling point is 373.15 kelvin..
  for melting it is necessary for ice to get warm so it attains heat 10 F to 32 F...
then ice melts but during this temperature remains constant..
the energy required for melting is 333    kJ/Kg K
then water is warmed at 305 Kelvin....    :)

An atom is determined to contain 12 protons, 10 electrons, and 12 neutrons. What are the mass number and charge of this atom or ion? Select one:
a. mass number: 24, charge: +2
b. mass number: 22, charge: neutral
c. mass number: 34, charge: -2
d. mass number: 34, charge: +2

Answers

The mass mass number is 22 and the charge of the atom is +2. The correct answer is option A

How to determine the mass number and charge?

1. The mass number of the atom can be obtained as follow:

  • Number of protons = 12
  • Number of neutrons = 12
  • Mass number =?

Mass number = number of proton + number of neutron

= 12 + 12

= 24

2. The charge of the atom can be obtained as follow:

  • Number of protons = 12
  • Number of electrons = 10
  • Charge =?

Charge = number of protons - number of electrons

= 12 - 10

= +2

Thus, the mass number is 24 and the charge is +2. The correct answer to the question is option A

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Mass number= atomic number + number of  neutrons.
A=Z+N
Z=number of protons=12
N=12

A=12+12=24

If, we have 12 protons and 10 electrons, the charge of this ion is +2

Therefore: mass number:24; charge: +2

Answer: a. mass number: 24; charge: +2
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