Which subatomic particle defines the identity of an element?
Question 2
2.
How many carbon atoms in NaCHCO3
Question 3
3.
How many Hydrogen atoms in NaCHCO3
Question 4
4.
How many total atoms in one molecule of NaHCO3
Question 5
5.
How many carbon atoms in CH3CH2Br
Question 6
6.
How many Nitrogen atoms in 4AgNO3
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Question 17
17.
Which observation of this process provides evidence of a chemical reaction?
Question 18
18.
Fireworks demonstrations are examples of a...
Question 19
19.
Identify the following as speed velocity or acceleration
Car turning left then right _________
Question 20
20.
Identify the following as speed velocity or acceleration
Car moving north with a speed of 70 m/hr
Question 21
21.
choose an object that is accelerating
Question 22
22.
Select the correct statement about velocity . choose 2
Question 23
23.
A 11 kg cart accelerated at .2 m/s2 to reach a speed of 5 m/s along the track. During this acceleration, what was the net force to the nearest thousands applied on the cart?
Question 24
24.
A 40 kg object is moved with a force of 18 N. What is the acceleration of the object?
Question 25
25.
A car travels a distance of 120 Km in 4 hours. what is its speed in kilometers per hours?
1
Question 26
26.
A magician pulls out the tablecloth from under the dishes and they do not move.
1
Question 27
27.
which of these explain why the coin fell straight down into the cup instead of remaining on the index card?
1
Question 28
28.
two cars with different masses travel at the same speed down a hill towards a stop sign. what will happen when both cars apply brakes at the same time to stop.
Question 29
29.
1.Each cart below is pushed across a room with the same amount of force. Which cart will result in the greatest acceleration?
