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3 years ago

If you wanted to know how big a tiger is which measurements would you use?

Chemistry

2 answers:

enot [183]3 years ago

4 0

Answer:

meter kilogram are the two measurement units which can be used to estimate the length and weight of the tiger

Explanation:

In general, measurement units are chosen such that they closely match the object that is to be measured.

In this case, in order to estimate how 'big' the tiger is there are are two units:

-one which measures the length/height of the tiger expressed in units of meter(m)

- the other measures the weight of the tiger which is expressed in units of kilogram (kg)

Elan Coil [88]3 years ago

3 0

I think the answer is
D. Meter Second
hope this helps.

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Caffeine (C8H10N4O2) is a stimulant found in coffees and teas. When dissolved in water, it can accept a proton from a water mole

Olenka [21]

Answer:

See figure 1

Explanation:

If we want to find the acid and the Brønsted-Lowry base, we must remember the definition for each of these molecules:

-) Acid: hydrogen donor

-) Base: hydrogen acceptor

In the caffeine structure, we have several atoms of nitrogen. These nitrogen atoms have the ability to accept hydronium ions ( $H^+$ ). Therefore the caffeine molecule will be the base since it can accept

If caffeine is the base, the water must be the acid. So, the water in this reaction donated a hydronium ion.

Thus, caffeine is the base and water the acid. (See figure 1)

3 0

3 years ago

??????????????? why ????????????????

stealth61 [152]

Answer:

because

Explanation:

4 0

3 years ago

Read 2 more answers

C3H8 is ________ A. unsaturated B. saturated

ELEN [110]

I believe it is saturated!

I hope this helps. Please mark me the Brainliest, it’s not necessary but I put time and effort into every answer and I would appreciate it greatly. Have a great day, stay safe and stay healthy ! :)

5 0

3 years ago

what is the minimum mass of ethylene glycol that must be dissolved in 14.5 kg of water to prevent the solution from freexing at

lbvjy [14]

Answer:

The minimum mass of ethylene glycol = 6.641 Kg

Explanation:

$\Delta T_f= T_f-T_f'\\T_f'=T_f-\Delta T_f$

Where T_f = freezing point of pure solvent water, 0°C

T_f'= Freezing point of solvent after mixture

K_f = Freezing point depression constant = 1.86 °C/m

Moecular weight of ethylene glycol = 60 g/mol

Weight of ethylene glycol = 14.5 Kg= 14.5×10^3 g

molality of ethylene glycol

$m = \frac{weight}{mol.wt} \times\frac{1000}{V}$

Substitute the values to calculate m

$m = \frac{w}{60} \times\frac{1000}{14.5\times1000}$

by formula

$0-(-14.2) =1.86\frac{w}{60} \times\frac{1000}{14.5\times1000}$

calculating we get w = 6641.93 g

Therefore, The minimum mass of ethylene glycol = 6.641 Kg

4 0

3 years ago

What is the most common state of matter?

schepotkina [342]

Matter in the plasma state has variable volume and shape, but as well as neutral atoms, it contains a significant number of ions and electrons, both of which can move around freely. Plasma is the most common form of visible matter in the universe. The four fundamental states of matter.

5 0

3 years ago