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Sav [38]
3 years ago
15

Who was the first scientist to measure speed as distance over time?

Chemistry
1 answer:
777dan777 [17]3 years ago
8 0

Galileo was the first scientist to measure speed as distance over time.

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Solid Silicon can be reacted with Nitrogen gas at a high temperature to form silicon nitride (Si3N4).
slamgirl [31]
Solid Silicon can be reacted with Nitrogen gas at a high temperature to form silicon nitride (Si3N4).
1.20 moles of Silicon are added to 1.00 moles of Nitrogen gas.
(5 Points) Balance the equation and indicate the phases.

Si (___) + N2 (___) → Si3N4 (___)

(5 Points) What is the limiting reactant? You must show your work.
4 0
3 years ago
What does it mean by the gas law? Can someone tell me how to do it step by step please it’s my final project
Rus_ich [418]

Answer:

gas laws involve the physical laws that describe the properties of gases.

Explanation:

4 0
3 years ago
What is the relationship between the electronic configuration, group and period numbers?
Margaret [11]

Answer: the number of circles in the electronic configuration of an element is represented in the periodic table as the period number that element is situated in. the number of electrons in the outermost shell of an element is represented in the periodic table as the group number that element is situated in.

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6 0
3 years ago
Which provides evidence to support the big bang theory?
Stolb23 [73]
A<span>. </span>
<span>the change in carbon dioxide levels in the atmosphere 
</span>
hope that's right and hope i helped




6 0
3 years ago
What's the significant figure 6.32
dolphi86 [110]
3 sf

<span>(Rules: 
> Non-zero digits are always significant. 
123 - 3sf
> Any zeros between two significant digits are significant.
102 - 3 sf
<span>> A final zero or trailing zeros in the decimal portion ONLY are significant.
4500 - 2 sf
0.04 - 1 sf
0.0013 - 2 sf )

</span></span>
3 0
4 years ago
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