CHEMISTRY HIGH SCHOOL

Which scientist is credited with developing the first scientific atomic theory?

Answers

Answer 1
Answer:

Answer:

John Dalton

Explanation:

John Dalton was the first scientist to give the atomic theory. According to Dalton:

  • All substance is made up of atoms and atoms are indivisible.  
  • All atoms of an element have the same mass.  
  • A compound is formed by the combination of different atoms from different elements.  
  • A chemical reaction is the rearrangement of atoms.  
Answer 2
Answer: Dalton was the first scientist to create an atomic theory but he wasn't given any credit. J.J Thompson was credited for his theory (apple pudding)

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The chemical symbol for sodium is
A. S.
B. N.
C. Sn.
D. Na.

Answers

     The chemical symbol for sodium is Na. Hope this helped!

Is aluminium malleable or rigid?

Answers

Aluminum is malleabe

Which of the following pieces of laboratory equipment is not directly used to make measurements?a. test tube
b. graduated cylinder
c. ruler
d. thermometer

Answers

Test are not directly used to make measurements, I mean you could use them to put 4 mL of a substance in, but not to measure out 4 mL, like with graduated cylinders. Rulers can be used to measure the length of something, like the number of inches. And a thermometer will help you measure the temperature of something.

Answer:

A. test tube

Explanation:

edg 2022

What is the main cause for global wind patterns?A) currents in the ocean affect the air above it

B) unequal heating of different parts of earth

C) differences in elevation on different landmasses

D) greenhouse gases

(no guessing please )
​

Answers

B

sometimes the earths heating of the surface is unequal forming global wind patterns

The Top Thrill Dragster, a rollercoaster at Cedar Point in Ohio, soars through the air at 176ft/sec. How fast is this in mph?​

Answers

The rollercoaster has a speed of 176 ft/sec. This can be converted to miles per hour. The speed is equivalent to 120 mph.

What is speed ?

Speed is a physical quantity measuring the distance travelled by an object per unit time. Speed is a scalar quantity. The rate of speed is called velocity.

The speed can be expressed in different units. such as m/s, km/h, ft./s miles per hour etc. These units can be interconverted using specific relations.

One ft/s = 0.682 mph

then, 176 ft./s  = 0.682 × 176 = 120 mph.

Therefore, the speed of the roller coaster is 120 mph.

Find more on speed:

brainly.com/question/7359669

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Describe how to properly measure the volume of a liquid.

Answers

Use a graduated cylinder.
The best way to measure it usually is to use a beaker or graduated cylinder. 
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