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3 years ago

PLEASE ANSWER AS FAST AS YOU CAN I'M ON A TIME LIMIT...

Chemistry

1 answer:

Nataly_w [17]3 years ago

8 0

Its C IT WILLBE LESS EXPENSIVETO COLLECT DATA AND MAKE OBSERVATIONS ANOUT ELEMENTS

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Which of the first 20 elements in a Periodic table has atoms with the greatest mass?

Rainbow [258]

Calcium has the greatest mass of the first twenty elements with a mass of approximately 40.08

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1 year ago

Very important !!!!!!!!!!!!

Mademuasel [1]

They speed up reactions by lowering activation energy. Many enzymes change shape when substrates bind.

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2 years ago

Complete the following reaction.<br> 14/7 N + 1/0 n —> <br> blank/blank C+1/1 H

Nataly_w [17]

Answer:

14/6

Explanation:

U 2 can help me by marking as brainliest........

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1 year ago

Read 2 more answers

The Average Speed of the orbiting space shuttle is

maxonik [38]

Explanation:

It is given that, the Average Speed of the orbiting space shuttle is 17500 miles/hour.

We need to convert the speed in kilometers/ second

We know that,

1 mile = 1.609 km

1 km = 0.621 miles

1 hour = 3600 seconds

$17500\ \dfrac{\text{miles}}{\text{hour}}=17500\ \dfrac{\text{miles}}{\text{h}}\times \dfrac{1\ h}{3600\ s}\\\\=17500\times \dfrac{\text{miles}}{3600\ s}$

Now cancel the miles in numerator.

$17500\times \dfrac{\text{miles}}{3600\ s}=17500\times \dfrac{\text{miles}}{3600\ s}\times \dfrac{1.609\ km}{1\ \text{miles}}\\\\=17500\times \dfrac{1.609}{3600}\ km/s\\\\=7.82\ km/s$

So, 17500 miles/hour is equal to 7.82 km/s.

8 0

2 years ago

Why methylated spirits burn?

pishuonlain [190]

Answer:

$Methylated \: spirits \: are \: \: extremely \: flammable.$

Explanation:

Incorrect use has resulted in accidents and disfiguring burns. Never leave a methylated spirit appliance unattended. Also make sure that the camping stove or appliance is on a flat surface and that the fuel cannot spill out.

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1 year ago