Answer:
Element, Sodium and Chloride
Answer:
A
Explanation:
During a chemical reaction two or more chemical substances interact with one another, causing the atoms to move around and rearrange their arraignment and bond together in a different way to make a new product or products.
Answer:
See explanation
Explanation:
a) u= 60 m/s, v= 45 m/s, t = 7 secs
From;
v = u + at
a = v - u/t
a= 45 - 60/7
a = -2.14 m/s^2
b)
u = 200 m/s
v= 235 m/s
t = 30 secs
v = u + at
a = v-u/t
a = 235 - 200/30
a= 1.17 m/s^2
c)
i) Acceleration = 3 - 1/2-0 = 2/2 = 1 m/s^2
ii) The slope between 2 and 5 is zero because velocity was not changing with time.
iii) Within the time between 2 and 5 the speed remained at 3 m/s
iv) the slope between 5 and 8 is 2 - 3/8 - 5 = -1/3 = -0.33m/s^2
v) The negative slope means that velocity is decreasing with time(deceleration).
The Balanced equation will be :
The Coefficients are :
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