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3 years ago

I'll give brainliest

Chemistry

1 answer:

lord [1]3 years ago

4 0

Answer:

I'm thinking its "Your friend had colder winters than you do."

Explanation:

It is not "Your friend has warmer winters than you do." Or "You Have less precipitation than your friend does." I was doing this quiz before that had this question and its not those.

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Which formula represents a salt? KOH KCl CH3OH CH3COOH

Licemer1 [7]

Answer:

kci represents the formula of salt

3 0

4 years ago

Calculate ΔH for the reaction: C(graphite) + 2H 2(g) + 1/2 O 2(g) => CH 3OH(l) Using the following information: C(graphite) +

Alika [10]

Answer:

$\Delta H$ for the given reaction is -238.7 kJ

Explanation:

The given reaction can be written as summation of three elementary steps such as:

$C(graphite)+O_{2}(g)\rightarrow CO_{2}(g)$ $\Delta H_{1}= -393.5 kJ$

$2H_{2}(g)+O_{2}(g)\rightarrow 2H_{2}O(l)$ $\Delta H_{2}= (2\times -285.8)kJ$

$CO_{2}(g)+2H_{2}O(l)\rightarrow CH_{3}OH(l)+\frac{3}{2}O_{2}(g)$ $\Delta H_{3}= 726.4 kJ$

---------------------------------------------------------------------------------------------------

$C(graphite)+2H_{2}(g)+\frac{1}{2}O_{2}(g)\rightarrow CH_{3}OH(l)$

$\Delta H=\Delta H_{1}+\Delta H_{2}+\Delta H_{3}=-238.7 kJ$

4 0

4 years ago

What amount if force need to be applied to a 20 kg bowling ball to give it an acceleration of 5m/s

balandron [24]

Answer:

100N

Explanation:

Given parameters:

Mass of the bowling ball = 20kg

Acceleration = 5m/s²

Unknown:

Amount of force applied = ?

Solution:

To solve this problem, we apply newton's second law of motion.

Force = mass x acceleration

Now insert the parameters and solve;

Force = 20 x 5 = 100N

5 0

3 years ago

Is this statement true or false? Bases will turn litmus paper red. a. True b. False

abruzzese [7]

False, it will turn the litmus paper blue

3 0

3 years ago

Steve traveled the first 7 hours of his

const2013 [10]

Answer:

Explanation:

Distance traveled in 2 hours = 2 * 40 = 80 m

Distance traveled in 3 hours = 3 * 80 = 240m

Total distance covered = 240 + 80 = 320m

Total time = 2 + 3 =5 h

Hence avg speed = total distance covered / total time taken

= 320/5 = 64mph

5 0

3 years ago