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Hitman42 [59]
3 years ago
11

Students in a robotics class designed cars to race as their end of the year project. Students collected data on their cars and c

ompared their individual data before the final race. The mass and the force applied to each car is recorded in the table below. Based on this information which car has the greatest acceleration? *
Chemistry
1 answer:
lesya [120]3 years ago
6 0
The answer is a . Just saying
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Aqueous sodium phosphate and aqueous iron (III) chloride react to produce aqueous sodium chloride and solid iron (III) phosphate
mojhsa [17]

Answer:

this one is hard

Explanation:

but it's iron because the sodium so yea there u go.

4 0
2 years ago
What is the [OH-] concentration if the pOH is 1.5?​
Olin [163]

Answer:

[OH-] = 10^-1.5 = 0.0316 M

Explanation:

4 0
3 years ago
Lighters are usually fueled by butane (c4h10). when 1 mole of butane burns at constant pressure, it produces 2658 kj of heat and
Leokris [45]

Answer:

ΔE = -2661 KJ/mole

ΔH = -2658 KJ/mole

Explanation:

ΔH = q - PΔV

ΔE = q + w

<u>First, to find ΔE:</u>

The reaction PRODUCES 2658 kJ of h (q), and does 3 kJ of work (w).

2658 kJ(q) + 3 kJ(w) = 2661 kJ, BUT the reaction <u><em>PRODUCES</em></u> heat, which means ΔE is negative.

ΔE = -2661 KJ/mole

<u>Second, to find ΔH:</u>

ΔH = q - PΔV

ΔH = 2658 kJ(q) - PΔV

Now, the question states that butane burns at a constant pressure; that just translates to the pressure of the reaction is equal to 0.

ΔH = 2658 KJ(q) - (0)ΔV

ΔH = 2658 KJ - 0

ΔH = 2658 kJ, BUT, like before, the reaction PRODUCES heat, which also mean ΔH is negative.

ΔH = -2658 KJ/mole

I hope this helped! Have a nice week.

5 0
3 years ago
Group 13 elements tend to acquire which charge when they form ions?<br> -3<br> +5<br> +3<br> -5
kipiarov [429]

Answer:

-0

Explanation:

8 0
3 years ago
A widow's peak is a V-shaped area of the hairline in the center of the forehead. The allele for having a widow's peak is dominan
Flauer [41]
<span>None. Since it is dominant, both would have to show it to pass in on.</span>
8 0
3 years ago
Read 2 more answers
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