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3 years ago

What's the differentiating characteristic between an element and a compound

Physics

2 answers:

IRISSAK [1]3 years ago

8 0

Answer:

an element is a pure substance whereas a compound is a mixture of two or more elements.

umka21 [38]3 years ago

6 0

The basic difference between a compound and an element is its constituents, in which the element is a pure individual chemical substance which has similar atom and compound is a mixture of two or more elements bounded chemically.

Explanation:

Elements:

Elements are pure homogenous substance.
Elements have similar atoms grouped together.
Element is being represented with the chemical scientific symbol.

Compounds:

Compound are heterogeneous mixture of elements.
Compound has different atoms which is combined in fixed ratio.
Compound is given by chemical formula.

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What determines velocity rather than speed??

Stella [2.4K]

Velocity - the speed of something in a given direction
Speed - rapidity in moving, going, traveling, proceeding, or performing; swiftness; celerity
Velocity is the speed in a certain direction, whereas speed is just the rate of fastness.
Does that make sense?

3 0

3 years ago

A circuit is made of a battery, a light bulb, and a 2 resistor. The battery has a voltage of 3 volts. When connected, the ammete

Monica [59]

Answer:

3ohms

Explanation:

From Ohm's Law

V = IR

V is that voltage = 3volts

I = current = 1amp

R = resistance in ohms

Putting those values into the above formula.

3volts = 1amp×R

Making R the subject

R = 3/1

R = 3ohms

The resistance of the light bulb is 3ohms.

6 0

3 years ago

A car speedometer has a 6% uncertainty. What is the range of possible speeds when it reads 100 km/h?

MAVERICK [17]

Range = 88.5 Km/h - 94.5 Km/h

3 0

2 years ago

You calculate the density of a block of aluminum to be 2.68 g/cm3. You look up the density of a block of aluminum at room temper

Hunter-Best [27]

Answer:

Systematic errors.

Explanation:

The density of the aluminium was calculated by a human and this is not natural but can be due to errors in the calibration of the scale for measuring the weight or taking readings from the measuring cylinder.

Random errors are natural errors. Random errors in experimental measurements are caused by unknown and unpredictable changes in the experiment. Systematic errors are due to imprecision or problems with instruments.

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3 years ago

Encontrar la distancia y desplazamiento de las dos trayectorias si se mueve el móvil Desde A hasta B

Lerok [7]

Answer:

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Explanation:

6 0

2 years ago