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3 years ago

Only an unbalanced force will change an objects

1 answer:

7 0

Direction of motion. If the object exists in a plane with no outside forces acting upon it, or equal forces acting upon it, it will just sit there; however, an imbalance of force, such as an increase or decrease of force in an applied vector, will cause the object to change direction.

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*BRAINLEST* is a solution an element, compound, homogenous mixture, or heterogeneous mixture?

castortr0y [4]

Homogenous mixture

Brainliest?

8 0

3 years ago

A gas occupies a volume of 140 mL at 35.0°C and 697 mm Hg. What is the volume of the gas at STP?

Harlamova29_29 [7]

Answer:

113.80 mL

Explanation:

Given that:

Volume $V_1 = 140 mL$

Temperature $T_1 = 35.0^0C$

$= (273 + 35) = 308 \ K$

Pressure $P_1 = 697 mmHg$

At standard temperature and pressure;

Temperature $T_2 = 273 K$

Pressure $P_2$ = 760 mmHg

Using the formula for a combined gas law:

$\dfrac{P_1V_1}{T_1} = \dfrac{P_2V_2}{T_2}$

$V_2 = \dfrac{P_1V_1T_2}{T_1P_2}$

$V_2 = \dfrac{697 \ mmHg \times 140 \ mL \times 273 \ K }{308 \ K \times 760 \ mmHg}$

$\mathbf{V_2 = 113.80 \ mL}$

6 0

3 years ago

What usually happens to the outer electrons of metallic atoms when they combine chemically with nonmetallic atoms?

aleksandr82 [10.1K]

They will mostly fill the octet rule rather than the nonmetal counterparts. Especially in the case of hydrogen

7 0

3 years ago

What is the difference between cells, tissues and organs

k0ka [10]

Answer:

A group of cells working together is defined as a tissue and several tissues working together comprise an organ.

Explanation:

3 0

4 years ago

Name the complex ion [cr(cn)6]3−. the oxidation number of chromium is +3. enter the name.

frez [133]

The given complex Ion is,

[Co(CN)₃]³⁻

In complex compounds the Positive part is named first, followed by name of Negative part. In given case there is no Positive part. So, we will name the Negative part.

In Sphere the Ligands are named first. In this case there are 6 CN⁻ ligands. As CN⁻ (cyanide) contains a negative charge so the -ide is replaced by -o. i.e. Cyanide → Cyano. Also, Hexa is placed before Cyano as there are 6 CN⁻ Ligands.
So,
   Hexacyano

After that Chromium metal is named. As there is a negative charge on the sphere, so the -ium in Chromium is replaced by -ate.
i.e. Chromium → Chromate. And the oxidation state of Cr is written in Roman. Hence,the name is as,

  Hexacyanochromate (III) Ion

5 0

4 years ago