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3 years ago

A roll of tape measures 45.5 inches. What is the length of the tape in meters?

Chemistry

1 answer:

FinnZ [79.3K]3 years ago

8 0

1.5 metres is the length of the tape. Hope this helps :)

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What is the valency of hydroxide

Simora [160]

Answer:

Its valancy is 1.

As it has the formula OH-.

It has valancy 1.

hope it helps..

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3 years ago

What's a hypothesis for Which fruit contains the most vitamin c?

yan [13]

Find a fruit you think is the one that contains the most vitamin C.

For example: kiwi

Answer: I hypothesize that kiwi contains the most vitamin C

Then after that you test your hypothesis by comparing fruit that contains vitamin C in an experiment.

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2 years ago

Give an example of when a plant or animal might use energy they have stored.

olasank [31]

Answer:

hunting for other animals or when they are really hungry

Explanation:

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2 years ago

A copper rod that has a mass of 200.0 g has an initial temperature of 20.0°C and is heated to 40.0°C. If 1,540 J of heat are nee

Romashka [77]

Heat gained in a system can be calculated by multiplying the given mass to the specific heat capacity of the substance and the temperature difference. It is expressed as follows:

Heat = mC(T2-T1)

1540 = 200.0 (C)(40 - 20)

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Hope this answers the question. Have a nice day.

8 0

3 years ago

Read 2 more answers

How many mL of 0.100 M NaOH are needed to neutralize 50.00 mL of a 0.150 M solution of CH3CO2H, a monoprotic acid? How many mL o

Rama09 [41]

Answer:

We need 75 mL of 0.1 M NaOH ( Option C)

Explanation:

Step 1: Data given

Molarity of NaOH solution = 0.100 M

volume of 0.150 M CH3COOH = 50.00 mL = 0.05 L

Step 2: The balanced equation

CH3COOH + NaOH → CH3COONa + H2O

Step 3: Calculate moles of CH3COOH

Moles CH3COOH = Molarity * volume

Moles CH3COOH = 0.150 M * 0.05 L

Moles CH3COOH = 0.0075 moles

Step 4: Calculate moles of NaOH

For 1 mol of CH3COOH we need 1 mol of NaOH

For 0.0075 mol CH3COOH we need 0.0075 mole of NaOH

Step 5: Calculate volume of NaOH

volume = moles / molarity

volume = 0.0075 moles / 0.100 M

Volume = 0.075 L = 75 mL

We need 75 mL of 0.1 M NaOH

7 0

3 years ago