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3 years ago

What is (3.2x10^14) x (7.3x10^10)

1 answer:

8 0

So first, you would take 10 and raise it up to the 14th power. Then take 10, and raise it up to 10th power. After doing all the work, your answer should be 2.336E29.

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Which substance is a base? HCOOH RbOH H2CO3 NaNO3

Alex Ar [27]

Answer:

RbOH

Explanation:

For this question, we have to remember what is the definition of a base. A base is a compound that has the ability to produce hydroxyl ions $OH^-$ , so:

$AOH~->~A^+~+~OH^-$

With this in mind we can write the reaction for each substance:

$HCOOH~->~HCOO^-~+~H^+$

$RbOH~->~Rb^+~+~OH^-$

$H_2CO_3~->~CO_3^-^2~+~2H^+$

$NaNO_3~->~Na^+~+~NO_3^-$

The only compound that fits with the definition is $RbOH$ , so this is our base.

I hope it helps!

6 0

2 years ago

Read 2 more answers

What are the three was main States of matter?

OleMash [197]

Answer:

liquid, solid, gas

Explanation:

7 0

3 years ago

Read 2 more answers

A sample of krypton gas with a volume of 10.00 L has a temp of 303 K and exerts

marshall27 [118]

Answer: The final volume will be 14.85 L.

Explanation:

To calculate the final volume when temperature increases, we use Charles' Law.

This law states that volume is directly proportional to the temperature of the gas if number of moles and pressure remains constant.

$V\propto T\\\\\frac{V_1}{T_1}=\frac{V_2}{T_2}$

where,

$V_1\text{ and }T_1$ = Initial volume and temperature

$V_2\text{ and }T_2$ = Final volume and temperature

We are given:

$V_1=10L\\
T_1=303K\\
V_2=?L\\
T_2=450K$

Putting values in above equation, we get:

$\frac{10L}{303K}=\frac{V_2}{450K}$

$V_2=14.85L$

Hence, the final volume of the gas is 14.85L

7 0

2 years ago

9.63 Km is the equivalent to 9,630 m. True. or False

Karo-lina-s [1.5K]

Answer:

9.63 Km is the equivalent to 9,630 m.

9.63 Km is the equivalent to 9,630 m. TRUE

7 0

2 years ago

Total these measurements. Your answer should indicate the proper accuracy.

Gnesinka [82]

Answer:

Total of all numbers added with the correct rounding and number of significant figures

Explanation:

1. Add up all the numbers

8.32+8.00+8.30+8.3

2. Determine how many significant figures should be in your final answer. When it comes to addition, it will be the fewest number of decimal places. since 8.3 has one decimal place, your final answer should only have one decimal place.

3. Round your final answer to the nearest tenths

8 0

3 years ago