Which mass measurement contains four significant figures?

A) 0.086 g

B) 0.431 g

C) 1003 g

D) 3870 g

A 75 gram bar of gold is cut into three equal pieces. How does the density of each piece compare to the density of the original bar? 1. Each piece is 1/3 the density of the original bar 2. Each piece is the same as the density of the original bar

Which of the following is an example of maintaining homeostasis? A. Learning B. Jumping C. Shivering D. Smiling

Which set of coefficients would balance the following chemical equation? H3PO4 + RbOH → H2O + Rb3PO4 Question 3 options: 2H3PO4 + RbOH → 3H2O + Rb3PO4 H3PO4 + RbOH → H2O + Rb3PO4 H3PO4 + RbOH → 2H2O + Rb3PO4 H3PO4 + 3RbOH → 3H2O + Rb3PO4

Which best describes why governmental funding for scientific research is important

A sample of 5 moles of gas is held at a constant temperature of 500 k inside a container with a volume of 0.25 l. What pressure in atmosphere is the gas under?

Researchers used a combustion method to analyze a compound used as an antiknock additive in gasoline. A 9.394 mg sample of the compound yielded 31.154 mg of carbon dioxide and 7.977 mg of water in the combustion.

The formula for binary ionic compound formed between cesium and fluorine

If the mass of a material is 76 grams and the volume of the material is 16 cm3, what would the density of the material be? g/cm3

Calculate the specific heat of a metallic element if 50.0 g of the metal need 314 joules of heat energy to raise the temperature from 25°C to 50°C.

State the relationship between the number of electrons in a carbon-nitrogen bond and carbon-nitrogen bond energy