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2 years ago

Can you please help me to answer this? I give you a brainlest!

Chemistry

1 answer:

zysi [14]2 years ago

5 0

9 is B
6 is A
i’m not sure about the rest

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What is the affect of increasing the water's mass?how does it reflect it's temperature?

Nikolay [14]

I assume what you're asking about is, how does the temperature changes when we increase water's mass, according the formula for heat ?
Well the formula is : $Q=m\cdot c\cdot \Delta t$ (where Q is heat, m is mass, c is specific heat and $\Delta t$ is change in temperature. So according this formula, increasing mass will increase the substance's heat, but won't effect it's temperature since they are not related. Unless, if you want to keep the substance's heat constant, in that case when you increase it's mass you will have to decrease the temperature

8 0

3 years ago

If 52500 J of heat is used to heat a 10200g block of metal and

Angelina_Jolie [31]

Answer:

45.95 Jkg^-1°C^-1

Explanation:

as specific heat capacity = heat energy / mass × delta

temperature

=52500/10.2×112

=45.95 Jkg^-1°C^-1

5 0

2 years ago

How are zinc and sodium alike?

mamaluj [8]

Answer: both are solid at room temperture

Explanation:

5 0

3 years ago

Which of the following units are commonly used in chemistry? A Kelvin b ampere c fluid ounce d kilogram

sdas [7]

Explanation:

your answer is Kelvin because it is the SI unit of temperature

7 0

2 years ago

A student practicing for a track meet ran 300 meters in 30 seconds. what was her average speed?

ololo11 [35]

Answer:

Explanation:

Her average speed can be found by using the formula

$v = \frac{d}{t} \\$

d is the distance

t is the time taken

From the question we have

$v = \frac{300}{30} = 10 \\$

We have the final answer as

Hope this helps you

7 0

3 years ago

Can you please help me to answer this? I give you a brainlest! ​

Can you please help me to answer this? I give you a brainlest!