295.4 millimeters is equal to:

• 0.002954 hectometers

• 0.02954 hectometers

• 0.2954 hectometers

• 29,540,000 hectometers

Express 0.00000618 in Scientific Notation:

• 6.18 x 10⁶

• 618 x 10^-8

• 61.8 x 10^-7

• 6.18 x 10^-6

Express the answer in the correct number of Significant Figures:

69 m x 702 m = ______________ m²

• 48,000

• 48,400

• 48,440

• 48,438

The most important piece of safety equipment for you to wear every time you work with chemicals or fire is/are:

• gloves

• a mask

• laboratory apron

• goggles/safety glasses

Calculate the volume of 350.0 g of antifreeze that has a density of 1.21 g/mL:

• 424 mL

• 0.00346 mL

• 349 mL

• 289 mL

Which of the following is an example of a fission reaction?

• ²³⁸ U → ²³⁴ Th + 𝜶

• ³ H + ² H → ⁵ He

• ²³⁸ U → ¹⁴⁰ I + ⁹⁸ Y

Tags

NGSS.HS-PS1-8

What is the correct name of the compound Fe₃(PO₄)₂?

• iron (III) phosphate

• iron phosphate

• tri iron diphosphate

• iron (II) phosphate

Which of the following is the correct formula for a compound formed from Mg and P?

• MgP

• MgP₂

• Mg₂P₃

• Mg₃P₂

Tags

NGSS.MS-PS1-1

The nucleus of an atom contains:

• protons only

• protons and neutrons

• protons and electrons

• neutrons and electrons

Tags

NGSS.HS-PS1-8

When water boils to become steam, it has undergone which type of change in matter?

• physical

• chemical

• nuclear

• all of the above

Tags

NGSS.HS-PS3-4